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Athletics
Half marathon
Half marathon runners in the 2024 Dallas Marathon
World records
MenUganda Jacob Kiplimo 56:42 (2025)
WomenMx: Ethiopia Letesenbet Gidey 1:02:52 (2021)
Wo: Kenya Peres Jepchirchir 1:05:16 (2020)

A half marathon is a road running event of 21.0975 kilometres (c. 13 mi 192.5 yd)—half the distance of a marathon.[1] It is common for a half marathon event to be held concurrently with a marathon or a 5K race, using almost the same course with a late start, an early finish, or shortcuts.[2] If finisher medals are awarded, the medal or ribbon may differ from those for the full marathon. The half marathon is also known as a 21K, 21.1K, or 13.1 miles, although these values are rounded and not formally correct.[examples needed]

A half marathon world record is officially recognised by World Athletics.[3][4] The men's world record time, pending ratification, is 56:42, set by Jacob Kiplimo of Uganda in February 2025 in Barcelona, Spain.[5] The women's world record, in a mixed-gender race, is 1:02:52, set by Letesenbet Gidey of Ethiopia in October 2021 in Valencia, Spain. In a female-only race, the women's world record is 1:05:16, set by Peres Jepchirchir of Kenya in October 2020.[6]

Participation in half marathons has grown steadily since 2003,[7] partly because it is a challenging distance, but does not require the same level of training that a marathon does.[7] In 2008, Running USA reported that the half marathon is the fastest-growing type of race.[7]

History

[edit]

The concept of the half-marathon emerged in the 1960s. The first half marathon was the Route du Vin Half Marathon founded in 1961. Although the race was technically not the official current distance until it was standardized in 1995.[8] The event grew in popularity leading to the eventual establishment of the World Athletics Road Running Championships in 1992, originally titled the IAAF World Half Marathon Championships.

All-time top 25

[edit]

Men

[edit]
Rank Time Athlete Date Place Ref
1 56:42  Jacob Kiplimo (UGA) 16 February 2025 Barcelona [11]
2 57:30  Yomif Kejelcha (ETH) 27 October 2024 Valencia [12]
3 57:32  Kibiwott Kandie (KEN) 6 December 2020 Valencia [13]
4 57:41  Hagos Gebrhiwet (ETH) 22 October 2023 Valencia [14]
5 57:50  Selemon Barega (ETH) 22 October 2023 Valencia [14]
6 57:59  Alexander Mutiso (KEN) 6 December 2020 Valencia [13]
7 58:01  Geoffrey Kamworor (KEN) 15 September 2019 Copenhagen [15]
8 58:02  Sabastian Sawe (KEN) 6 March 2022 Rome–Ostia [16]
9 58:07  Abel Kipchumba (KEN) 24 October 2021 Valencia [17]
10 58:10  Isaia Kipkoech Lasoi (KEN) 15 September 2024 Copenhagen [18]
11 58:11  Philemon Kiplimo (KEN) 6 December 2020 Valencia [13]
12 58:17  Daniel Mateiko (KEN) 27 October 2024 Valencia [19]
13 58:23  Zersenay Tadese (ERI) 21 March 2010 Lisbon
14 58:28  Kennedy Kimutai (KEN) 24 October 2021 Valencia [17]
15 58:30  Rodgers Kwemoi (KEN) 19 February 2022 Ras al-Khaimah [20]
16 58:33  Samuel Wanjiru (KEN) 17 March 2007 The Hague
 Jemal Yimer (ETH) 28 October 2018 Valencia [21]
18 58:35  Kenneth Kiprop Renju (KEN) 19 February 2022 Ras al-Khaimah [22]
19 58:36  Seifu Tura Abdiwak (ETH) 19 February 2022 Ras al-Khaimah [23]
20 58:39  Gemechu Dida (ETH) 27 October 2024 Valencia [24]
21 58:40  Abraham Cheroben (BHR) 17 September 2017 Copenhagen
 Muktar Edris (ETH) 24 October 2021 Valencia [17]
 Amdework Walelegn Tadese (ETH) 19 February 2022 Ras al-Khaimah [25]
24 58:41  Vincent Langat (KEN) 27 October 2024 Valencia [26]
25 58:42  Bedan Karoki Muchiri (KEN) 9 February 2018 Ras al-Khaimah [27]
 Eric Kiptanui (KEN) 8 April 2018 Berlin [28]
 Stephen Kiprop (KEN) 8 February 2019 Ras al-Khaimah [29]
 Kelvin Kiptum (KEN) 6 December 2020 Valencia [13]

Notes

[edit]

Below is a list of other times equal or superior to 58:42:

Performance annulled due to doping offences:

Time Athlete Date Place Ref
57:49  Rhonex Kipruto (KEN) 6 December 2020 Valencia [13]

Women

[edit]
Rank Time Athlete Date Place Ref
1 1:02:52 Mx  Letesenbet Gidey (ETH) 24 October 2021 Valencia [35]
2 1:03:04 Mx  Agnes Jebet Ngetich (KEN) 27 October 2024 Valencia [36]
3 1:03:21 Mx  Fotyen Tesfay (ETH) 27 October 2024 Valencia [37]
4 1:03:32 Mx  Lilian Kasait Rengeruk (KEN) 27 October 2024 Valencia [38]
5 1:03:51 Mx  Yalemzerf Yehualaw (ETH) 24 October 2021 Valencia [39]
6 1:04:02 Mx  Ruth Chepng'etich (KEN) 4 April 2021 Istanbul [40]
7 1:04:13 Mx  Joyciline Jepkosgei (KEN) 16 February 2025 Barcelona [41]
8 1:04:14 Mx  Girmawit Gebrzihair (ETH) 19 February 2022 Ras al-Khaimah [42]
1:04:14 Mx  Ejgayehu Taye (ETH) 27 October 2024 Valencia [43]
10 1:04:22 Mx  Hellen Obiri (KEN) 19 February 2022 Ras al-Khaimah [44]
11 1:04:31 Mx  Ababel Yeshaneh (ETH) 21 February 2020 Ras al-Khaimah [45]
12 1:04:36 Mx  Sheila Chepkirui (KEN) 19 February 2022 Ras al-Khaimah [46]
13 1:04:37  Irine Kimais (KEN) 19 February 2023 Barcelona [47]
1:04:37 Mx  Sutume Kebede (ETH) 14 January 2024 Houston [48]
15 1:04:40 Mx  Senbere Teferi (ETH) 11 February 2024 Barcelona [49]
16 1:04:46  Margaret Kipkemboi (KEN) 22 October 2023 Valencia [14]
17 1:04:49  Brigid Kosgei (KEN) 21 February 2020 Ras al-Khaimah [50]
18 1:04:52  Fancy Chemutai (KEN) 9 February 2018 Ras al-Khaimah [51]
19 1:04:53  Irene Chepet Cheptai (KEN) 22 October 2023 Valencia [14]
20 1:04:55  Mary Keitany (KEN) 9 February 2018 Ras al-Khaimah [52]
21 1:05:01 Mx  Tsehay Gemechu (ETH) 28 August 2022 Larne [53]
22 1:05:03 Mx  Vicoty Chepngeno (KEN) 16 January 2022 Houston [54]
23 1:05:04  Joan Chelimo (KEN) 7 April 2018 Prague [55]
24 1:05:06  Peres Jepchirchir (KEN) 10 February 2017 Ras al-Khaimah [33]
25 1:05:07  Caroline Chepkoech Kipkirui (KEN) 9 February 2018 Ras al-Khaimah [56]

Notes

[edit]

Below is a list of other times equal or superior to 1:05:07:

Season's bests

[edit]
The Chicago Half Marathon is a Chicago Marathon tune-up on Lake Shore Drive in the South Side of Chicago.
Runners taking part in the Bristol Half Marathon

This table lists the best half marathon performances per year since 1970, as recorded by the ARRS.[61]

Year Mark Men Place Mark Women Place
1970 1:03:53  Derek Graham (GBR) Belfast
1971 1:05:25  Ron Hill (GBR) Freckleton 1:23:56  Kathy Gibbons (USA) Phoenix
1972 1:04:23  Víctor Manuel Mora (COL) Coamo 1:31:55  Nadia Garcia (USA) San Diego
1973 1:05:07  Mario Cuevas (MEX) Maracaibo
1974 1:04:45  Vladimir Merkushin (URS) Wieze 1:23:11  Chantal Langlacé (FRA) Ay
1975 1:05:08  Paul Angenvoorth (FRG) Grevenmacher
1976 1:03:46  Rafael Pérez (CRC) Coamo 1:29:43  Rita Borralho (POR) Nazaré
1977 1:02:37  Toshihiro Matsumoto (JPN) Beppu 1:22:05  Silvana Cruciata (ITA) Milan
1978 1:02:47  Tony Simmons (GBR) Welwyn Garden City 1:15:04  Marty Cooksey (USA) San Diego
1979 1:02:32  Kirk Pfeffer (USA) Las Vegas 1:14:03  Patti Catalano (USA) Manchester
1980 1:02:16  Stan Mavis (USA) New Orleans 1:13:59  Marja Wokke (NED) The Hague
1981 1:01:47  Herb Lindsay (USA) Manchester 1:11:16  Joan Samuelson (USA) San Diego
1982 1:01:36  Michael Musyoki (KEN) Philadelphia 1:09:57  Grete Waitz (NOR) Gothenburg
1983 1:01:32  Paul Cummings (USA) Dayton 1:09:10  Joan Samuelson (USA) Philadelphia
1984 1:01:52  Alberto Cova (ITA) Milan 1:08:34  Joan Samuelson (USA) Philadelphia
1985 1:00:55  Mark Curp (USA) Philadelphia 1:09:44  Joan Samuelson (USA) Philadelphia
1986 1:00:43  Michael Musyoki (KEN) South Shields 1:09:03  Ingrid Kristiansen (NOR) Drammen
1987 1:01:04  Carl Thackery (GBR) Barnsley 1:06:40  Ingrid Kristiansen (NOR) Sandnes
1988 1:01:00  John Treacy (IRL) South Shields 1:08:49  Grete Waitz (NOR) South Shields
1989 1:01:10  Matthews Temane (RSA) Durban 1:08:31  Ingrid Kristiansen (NOR) New Bedford
1990 1:00:34  Steve Moneghetti (AUS) South Shields 1:09:33  Rosa Mota (POR) South Shields
1991 1:00:51  Moses Tanui (KEN) Milan 1:07:59  Elana Meyer (RSA) East London
1992 1:00:24  Benson Masya (KEN) South Shields 1:08:42  Liz McColgan (GBR) Dundee
1993 59:47  Moses Tanui (KEN) Milan[a] 1:09:35  Valentina Yegorova (RUS) St Petersburg
1994 1:00:02  Benson Masya (KEN) South Shields 1:07:59  Uta Pippig (GER) Kyoto
1995 1:00:26  Simon Lopuyet (KEN) Lisbon 1:07:59  Uta Pippig (GER) Kyoto
1996 1:00:31  Paul Koech (KEN) Ivry-sur-Seine 1:09:15  Nadia Prasad (NCL) Paris
1997 59:56  Shem Kororia (KEN) Košice 1:07:36  Elana Meyer (RSA) Kyoto
1998 59:17  Paul Tergat (KEN) Milan 1:07:29  Elana Meyer (RSA) Kyoto
1999 59:22  Paul Tergat (KEN) Milan 1:06:44  Elana Meyer (RSA) Tokyo
2000 1:00:30  Kenichi Takahashi (JPN) Tokyo 1:07:07  Paula Radcliffe (GBR) South Shields
2001 59:52  Fabián Roncero (ESP) Berlin 1:06:47  Paula Radcliffe (GBR) Bristol
2002 59:41  Haile Gebrselassie (ETH) Lisbon 1:07:19  Sonia O'Sullivan (IRL) South Shields
2003 1:00:01  Hendrick Ramaala (RSA) South Shields 1:05:39  Paula Radcliffe (GBR) South Shields
2004 59:37  Dejene Berhanu (ETH) South Shields 1:07:55  Benita Johnson (AUS) South Shields
2005 59:05  Zersenay Tadese (ERI) South Shields 1:07:33  Derartu Tulu (ETH) South Shields
2006 58:55  Haile Gebrselassie (ETH) Tempe 1:07:16  Edith Masai (KEN) Berlin
2007 58:35  Samuel Wanjiru (KEN) The Hague 1:06:25  Lornah Kiplagat (NED) Udine
2008 59:15  Haile Gebrselassie (ETH)
 Deriba Merga (ETH) 		Lisbon
New Delhi 		1:07:57  Philes Ongori (KEN) Marugame
2009 58:52  Patrick Makau (KEN) Ras al-Khaimah 1:06:36  Mary Keitany (KEN) Birmingham
2010 58:23  Zersenay Tadese (ERI) Lisbon 1:07:07  Elvan Abeylegesse (TUR) Ras al-Khaimah
2011 58:30  Zersenay Tadese (ERI) Lisbon 1:05:50[62]  Mary Keitany (KEN) Ras al-Khaimah
2012 58:47  Atsedu Tsegay (ETH) Prague 1:06:49  Mary Keitany (KEN) Ras al-Khaimah
2013 58:54  Geoffrey Kipsang (KEN) Ras al-Khaimah 1:06:09  Lucy Kabuu (KEN) Ras al-Khaimah
2014 58:48  Abraham Cheroben (KEN) Valencia 1:05:12  Florence Kiplagat (KEN) Barcelona
2015 59:10  Abraham Cheroben (KEN) Valencia 1:05:09  Florence Kiplagat (KEN) Barcelona
2016 58:44  Solomon Yego (KEN) Ostia 1:05:51  Violah Jepchumba (KEN) Prague
2017 58:40  Abraham Cheroben (BHR) Copenhagen 1:04:51  Joyciline Jepkosgei (KEN) Valencia
2018 58:18  Abraham Kiptum (KEN) Valencia 1:04:52  Fancy Chemutai (KEN) Ras al-Khaimah
2019 58:01  Geoffrey Kamworor (KEN) Copenhagen 1:05:28  Brigid Kosgei (KEN) Manama
2020 57:32  Kibiwott Kandie (KEN) Valencia 1:04:31  Ababel Yeshaneh (ETH) Ras al-Khaimah
2021 57:31  Jacob Kiplimo (UGA) Lisbon 1:02:52  Letesenbet Gidey (ETH) Valencia
2022 57:56  Jacob Kiplimo (UGA) Ras al-Khaimah 1:04:14  Girmawit Gebrzihair (ETH) Ras al-Khaimah

The largest half marathon ever held was Broloppet (the Bridge race) between Copenhagen in Denmark and Malmö in Sweden with 79,719 finishers, held in connection with the Øresund Bridge inauguration in 2000.[63][64]

See also

[edit]

Notes

[edit]

References

[edit]

Further reading

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia

Half marathon

View on Grokipedia
from Grokipedia
A half marathon is a long-distance road running event standardized at a distance of 21.0975 kilometres (13.1094 miles), precisely half the length of a full marathon. This distance, measured in metric units for international consistency, is covered along certified courses, often in urban or scenic settings using out-and-back, loop, or point-to-point formats. Developed in the by race organizers as a more accessible alternative to the demanding marathon, the half marathon quickly evolved into a staple of . Its popularity surged from the onward, driven by its balance of challenge and attainability for both recreational athletes and elites, leading to thousands of events held globally each year. By the late , participation had expanded dramatically, with over 2.1 million finishers worldwide in alone, reflecting its appeal across age groups and genders. Average finish times for recreational participants are approximately 1:50 to 2:10 hours, with a "good" time often classified around 1:50 or better across all runners according to various running data analyses. For men, good times are frequently cited around 1:43-1:55; for women, around 2:00-2:15. Beginners may consider anything under 2:30-3:00 good, while sub-2 hours is a common recreational goal. At the elite level, the half marathon showcases exceptional speed and endurance, with world records ratified by . Uganda's holds the men's record of 56:42, set at the eDreams Mitja Marató on February 16, 2025. Ethiopia's set the women's mark of 1:02:52 at the Valencia Half Marathon on October 24, 2021. The distance is a featured event in the . Global champions have been crowned annually from 1992 to 2005 and biennially thereafter, including as part of the biennial Road Running Championships since 2023, though it is not included in the Olympic program or . Notable races, such as the Run in the UK and the Berlin Half Marathon, draw massive fields and highlight the event's cultural and competitive significance.

Definition and Basics

Distance and Standards

The half marathon is officially defined as a road running distance of 21.0975 kilometers (km), which equates precisely to half the standard marathon length of 42.195 km. This measurement derives directly from the marathon's standardization, ensuring consistency across international competitions. In , the distance converts to 13.1094 miles, though it is commonly rounded to 13.1 miles in popular media and casual references for simplicity. The precise distance of 21.0975 km was established in 1921 when the International Amateur Athletic Federation (IAAF, now ) formalized the marathon at 42.195 km, thereby setting the half marathon standard by extension; prior to this, early 20th-century road races approximating half marathon lengths varied due to inconsistent marathon distances at events like the Olympics. For official recognition, including eligibility for world records and elite performances, half marathon courses must undergo certification by or the Association of International Marathons and Distance Races (AIMS), involving accredited measurers who use calibrated bicycles and adhere to the "short course prevention factor" to avoid under-measurement. Measurements must achieve an accuracy with not exceeding 0.1%—equivalent to no more than 21 meters for a half marathon course—and certifications remain valid for five years before re-measurement is required. Non-certified half marathon events, often local or recreational races, may deviate from the exact 21.0975 km due to less rigorous measurement practices, potentially resulting in courses that are slightly shorter or longer, though organizers typically aim for the standard to maintain participant expectations. These variations highlight the importance of for competitive integrity, as only verified courses support official timings and rankings under World Athletics rules.

Race Format and Rules

Half marathons are categorized into open (senior), masters, and age-group divisions to accommodate participants of varying experience and age levels. The open category is for elite and senior athletes typically under 35 years old, while masters competitions, governed by World Masters Athletics, begin at age 35 and use five-year age bands such as 35-39, 40-44, and so on for both men and women. Age-group categories in general races often follow similar five-year increments starting from 18-19 or 20-24, depending on the event organizer, but are determined by competition regulations. Eligibility requires participants to meet minimum age requirements, with stipulating no athlete younger than 18 years on December 31 of the competition year for international events like half marathons. Athletes must also be registered members of a member federation and comply with anti-doping regulations. Timing in half marathons employs electronic chip systems attached to participants' shoes or bibs to record net time—the elapsed duration from crossing the start-line mat to the finish-line mat—while time measures from the starting signal to crossing the finish line. Net time is used for official results, records, age-group awards, and qualification purposes in World Athletics-sanctioned events, as it accounts for congestion at the start. time may be referenced in mass-participation races but does not determine winners in competitions. Scoring focuses on finish times, but competitions, such as those in championships, aggregate the net times of the top three or four members per . Pacing rules prohibit assistance from non-participants, including bicycles, vehicles, or individuals not entered in the race, to ensure fair competition; lapped athletes may not pace leaders either. Aid stations must be positioned at the start, finish, and at intervals of approximately 5 km for races longer than 5 km, providing water and other approved refreshments, with personal fluid stations allowed in designated zones to prevent unauthorized aid. Disqualifications occur for violations such as taking course shortcuts, receiving assistance outside official aid stations, , or using prohibited devices like in elite races. Road half marathons adhere strictly to certification for distance accuracy and closed courses, while trail half marathons, under mountain and rules, permit varied but require similar timing and aid protocols adapted for off-road conditions. Virtual half marathons, conducted remotely via apps or self-tracking, follow minimal format guidelines but are ineligible for official records or rankings due to lack of verified course control.

History

Origins and Early Development

The half marathon distance of 21.0975 kilometers emerged conceptually in the early as a shorter alternative to the full marathon, directly influenced by the standardization of the marathon at 42.195 kilometers during the 1908 London Olympic Games, where the course was extended from to the to accommodate royal viewing. This halving provided a practical midpoint for endurance testing without the full demands of the longer race, appealing to amateur runners seeking accessible long-distance challenges. Precursors to organized half marathon-style events trace back to the Victorian era's , a popular form of competitive walking that featured feats over varied distances, often funded by wagers and held in public venues like fairgrounds or tracks. These challenges, such as multi-day walks covering hundreds of miles, emphasized stamina and crowd appeal, laying foundational interest in measured long-distance foot competitions that later transitioned toward running formats in the late 19th and early 20th centuries. While primarily walking-based, pedestrianism's spectacle and structure influenced the development of road-based athletic events, including early running races of various lengths. Early long-distance running events in and the gained traction in athletic clubs during the growing popularity of organized athletics, where distances offered a balanced test of speed and suitable for both elite and recreational participants. The first half marathon race over the exact distance of 21.0975 km was the Route du Vin Half Marathon in in 1961. The International Amateur Athletic Federation (IAAF, now ), founded in , played a key role in formalizing through rule standardization and record recognition for various distances, helping legitimize long-distance road events within international athletics. This oversight encouraged consistent measurement and competition guidelines, bridging early ad hoc races toward more structured development.

Modern Era and Growth

The half marathon experienced significant growth following , particularly in the 1950s and 1960s, as race organizers introduced the distance as an accessible alternative to the full marathon, aligning with emerging interest in events. This period marked the formalization of the half marathon, with early races like the Route du Vin Half Marathon in debuting in 1961, reflecting a broader emphasis on fitness and community athletics. By the , the running boom in the United States and further propelled its popularity, fueled by increased recreational participation and the integration of half marathons into larger circuits. The 1980s and 2000s saw accelerated expansion, driven by the jogging culture that popularized endurance running as a mainstream activity, with an estimated 25 million Americans adopting running during this era. Women's participation surged following the 1972 passage of in the United States, which mandated equal opportunities in education including athletics, leading to dramatic increases in female runners—from about 7% of high school athletes in 1971 to over 40% by the 2000s—and greater inclusion in half marathon fields. Iconic events like the Great North Run, launched in 1981 in , , exemplified this trend by attracting over 12,000 participants in its inaugural year and establishing a model for large-scale, inclusive road races. In the , half marathons evolved into mass-participation spectacles, with thousands of events held annually worldwide by the , drawing approximately 2.1 million finishers globally in 2019 alone. This growth was bolstered by strong ties to charitable causes, as runners increasingly participated to raise funds—exemplified by events generating tens of millions for nonprofits—and by their role in promoting , where races showcased city landmarks and boosted local economies. The advent of GPS tracking technology in wearable devices and apps enhanced by enabling precise , route planning, and performance monitoring for recreational runners. During the , virtual half marathons proliferated in 2020 and 2021, allowing participants to complete distances remotely via self-timed efforts, which sustained engagement and introduced the format to new audiences despite in-person event cancellations.

Training and Preparation

Training Principles and Plans

Training for a half marathon relies on fundamental principles that ensure gradual adaptation and . , the systematic increase in training volume or intensity, is essential for building endurance, with guidelines recommending no more than a 10% weekly increase in mileage or duration to allow physiological adaptations without excessive stress. structures into phases: base building to develop aerobic capacity through easy runs, a build phase incorporating speed work for , and tapering in the final 2-3 weeks to reduce volume by 20-50% while maintaining intensity, optimizing recovery for race day. For beginners, the run-walk method—alternating short running intervals with walking breaks, such as 1 minute run to 1 minute walk—reduces and impact, enabling completion of longer distances with lower risk. Sample 12-week training plans vary by experience level. For novices, a plan typically involves 3-4 running days per week, starting with short easy runs of 3-4 miles and one session (e.g., or for 30-40 minutes), progressing to a peak weekly total of 20-25 miles. Long runs build gradually from 4 miles to 10-12 miles, emphasizing conversational pace, with rest or easy days incorporated to support recovery; the final two weeks taper to 10-15 miles total. Advanced runners follow more demanding schedules with 5-6 running days, incorporating 1-2 quality sessions weekly, such as runs up to 8-10 km at a comfortably hard effort or intervals (e.g., 6x400m at 5K pace with recovery jogs), alongside long runs extending to 16-20 km; weekly mileage peaks at 40-50 miles before tapering. Key workouts enhance specific adaptations while maintaining variety. Long runs, the cornerstone of half marathon preparation, simulate race demands by building to 16-20 km at an easy pace, fostering fat metabolism and mental resilience; they should comprise no more than 25-30% of weekly mileage to avoid overuse. Hill repeats (e.g., 6-8x30 seconds uphill at moderate effort) improve strength and power, while sessions—unstructured speed play alternating 1-2 minutes fast with easy for 30-40 minutes—boost aerobic threshold and enjoyment. Rest days and , such as 45-60 minutes of , complement running by reducing joint impact and addressing muscular imbalances. To set goal paces, runners can use the VDOT method, which estimates equivalent performances across distances based on a recent 5K or 10K time, reflecting maximal oxygen uptake. For instance, a 20:00 5K (approximately 6:26 min/mile) yields a VDOT of around 48, corresponding to a half marathon pace of 7:00-7:10 min/mile, or roughly 25-30 seconds per mile slower than 5K pace; this accounts for the longer distance's demands on and economy. Block , concentrating high-intensity blocks (e.g., 2-4 weeks of intervals) amid lower-volume recovery periods, has shown superior improvements in endurance performance compared to traditional linear models for middle- and long-distance runners, including half marathon distances.

Nutrition, Recovery, and Equipment

Proper is crucial for half marathon runners to optimize levels and performance. Pre-run fueling typically involves consuming 1-4 grams of carbohydrates per of body weight 1-4 hours before exercise to maximize muscle stores. During the race, which often lasts 1.5-2 hours, runners should aim for 30-60 grams of carbohydrates per hour, commonly delivered through energy gels to maintain blood glucose and delay . Post-run recovery begins with a carbohydrate-protein , ideally in a 4:1 ratio, consumed within 30 minutes to replenish and support muscle repair. Hydration strategies emphasize steady fluid intake to prevent , with guidelines recommending approximately 500 milliliters per hour during and , adjusted based on individual sweat rates that can range from 400 to 2,400 milliliters per hour. balance is essential, particularly sodium and , to maintain fluid retention and muscle function, often achieved through sports drinks or salted foods. runners face a higher risk of due to menstrual blood loss and increased demands from , affecting up to 35% of athletes; this can be addressed through iron-rich diets (e.g., lean meats, leafy greens) or supplements like ferrous sulfate under medical supervision. Recovery techniques play a vital in mitigating and injury risk after intense sessions. Active rest, such as light walking or , promotes blood flow and reduces muscle stiffness without adding stress. Foam rolling targets in areas like the , hamstrings, and calves, helping alleviate tightness and soreness when performed for 5-10 minutes daily. Adequate , aiming for 7-9 hours per night, supports hormonal balance and tissue repair essential for athletes. can be monitored using (HRV), where decreased values indicate inadequate recovery, or perceived exertion scales like the Borg RPE, which track subjective during submaximal efforts. Essential equipment enhances safety, comfort, and efficiency in half marathon preparation. Running shoes are foundational, with neutral types suited for runners with proper foot alignment and stability models providing medial support for overpronators to prevent injuries. GPS watches, such as those from or Coros, track distance, pace, and in real-time, aiding in consistent . Moisture-wicking apparel, including shirts, shorts, and socks made from synthetic fabrics like , minimizes chafing and regulates temperature during long runs. Injury-preventive , custom or over-the-counter inserts, correct biomechanical issues like , reducing strain on the lower extremities when prescribed by a .

Race Organization and Events

Course Design and Logistics

Half marathon courses are typically designed to cover exactly 21.0975 kilometers while prioritizing runner safety, fairness, and engagement through varied layouts. Common configurations include point-to-point routes, which connect distinct start and finish locations to provide diverse scenery and minimal repetition but require shuttle services for participants; loop courses, involving one or more circuits that return runners to the origin for streamlined and easier access to amenities; and out-and-back paths, where runners proceed to a turnaround point and retrace their steps, offering simple setup and balanced aid station placement at the midpoint despite potential visual monotony. Elevation profiles are carefully managed to promote equitable racing conditions, with World Athletics guidelines stipulating that the net downhill drop should not exceed 1 meter per kilometer, limiting the total descent to about 21 meters over the full distance to prevent undue advantages. Courses may incorporate rolling terrain for challenge or remain predominantly flat for speed-focused events, always measured by certified professionals to verify compliance. Urban designs often navigate city streets and landmarks to boost spectator turnout and local economic benefits, whereas scenic variants traverse parks, waterfronts, or rural paths to deliver motivational views, though the latter demands more extensive permitting for off-road segments. Operational logistics form the backbone of event execution, beginning with coordinated road closures approved by municipal authorities to secure the route against , typically spanning several hours and affecting key intersections. Volunteer staffing is essential, with teams assigned to direct , monitor splits, and manage stations stocked with , electrolytes, and energy gels every 2-3 kilometers. Medical support includes tents positioned at regular intervals—often every 2-3 km—equipped with defibrillators, hydration, and trained personnel to handle or minor injuries, while timing mats at the start, 10K intermediate point, and finish enable precise chip-based tracking for official results. Sustainability has become a core aspect of course planning, with organizers selecting eco-friendly routing to minimize disruption to natural habitats and reduce carbon footprints through efficient path selections. Waste management protocols emphasize zero-waste goals via on-course bins, compostable cups, and post-event cleanups, aiming to divert at least 90% of generated refuse from landfills in line with global athletics standards. Inclusivity features, such as dedicated divisions, ensure adaptive athletes can participate on accessible segments of the course, often with handcycle-friendly surfaces and separate start waves to foster broader participation. Event budgeting revolves around balancing costs with revenue streams, where entry fees generally range from $20 for community-based races to $100 for larger productions, covering , permits, and . Prize money structures typically award equal amounts across genders and categories, with elite purses reaching $5,000 or more for top finishers in labeled events to attract professionals, while amateur divisions emphasize medals and finisher amenities. Spectator zones are strategically placed at high-visibility turns or midpoints, equipped with barriers and viewing platforms to enhance and excitement without incurring high setup expenses.

Major Competitions and Formats

The premier global competition for elite half marathon runners is the , which incorporates the half marathon distance alongside other road events like the 5 km and mile. This biennial event succeeded the former World Athletics Half Marathon Championships, which ran annually from 1992 to 2005 and biennially from 2006 to 2020, with the last edition held in , in October 2020. The 2023 championships took place in , marking the revival in a combined format, while the 2025 edition, originally scheduled for , was cancelled in April 2025 due to organizational challenges; the next edition is set for September 19–20, 2026, in . Among iconic half marathons, the Generali Half Marathon stands out as one of Europe's largest, first held in 1984 in and unified after the fall of the , now drawing over 40,000 participants annually through historic landmarks like the . In the United States, the Life Time Half Marathon, launched in 1997, has become a staple event with a scenic route through Jackson Park and along , celebrating its 25th anniversary in 2022. Mass participation events like the runDisney series, which began offering half marathon races in 2009 at Disney World Resort, combine running with themed entertainment, attracting tens of thousands of participants yearly across various Disney parks worldwide. Similarly, the B.A.A. Half Marathon, organized by the Boston Athletic Association since its inaugural running in 2001, follows the park system and serves as a key tune-up for the , with fields exceeding 6,000 runners. Half marathons vary in format, with many held as standalone races to focus solely on the 21.0975 km , while others pair with full marathons during weekend festivals, such as the weekend events, allowing shared logistics and spectator appeal. Trail-based half marathons have surged in popularity, featuring off-road challenges; for instance, the UTMB World Series includes half marathon distances in rugged terrains across global locations like Vallnord, , testing runners' endurance on uneven paths and elevations up to 2,000 meters. Post-2020, virtual half marathons emerged as a flexible alternative amid the , enabling participants to run anywhere while syncing times via apps, with series like the global Virtual Half Marathon Challenge fostering worldwide without fixed courses. Regionally, Asia has seen rapid growth in half marathon events, exemplified by the Legacy Half Marathon, introduced in 2022 on the Paralympic marathon course from the 2020 Games, drawing elite and recreational runners to the National Stadium start. African athletes maintain dominance in elite half marathons, holding all top world rankings and records due to strong training cultures in nations like and . In the Americas, half marathons often prioritize charity, with events like the Rock 'n' Roll Half Marathon raising millions annually for causes including and youth programs through partnerships with organizations such as the Leukemia & Lymphoma Society.

Performance and Records

World Records

The current men's world record in the half marathon is 56:42, set by of at the Half Marathon on 16 February 2025. The women's world record is 1:02:52, achieved by of at the Valencia Half Marathon on 24 October 2021. These marks were set in mixed-gender races, where recognizes records under specific conditions to ensure fairness. The progression of men's world records has accelerated significantly since the early , reflecting advances in training, shoe technology, and course optimization, with a pursuit of sub-60-minute performances becoming feasible in the . Key milestones include Toshihiko Seko's 1:01:43 in 1981, marking the first official sub-62-minute effort, followed by steady improvements driven by East African athletes. The table below summarizes major progression points from 1981 onward.
YearAthleteTimeLocation
1981Toshihiko Seko (JPN)1:01:43
1999 (KEN)59:17
2007 (ETH)58:55
2010 (ERI)58:23
2019 (KEN)58:01
2020 (KEN)57:32
2021 (UGA)57:31
2024 (ETH)57:30
2025 (UGA)56:42
Women's world records have similarly evolved, starting from the early with times around 1:08 and dropping dramatically in the through tactical pacing in mixed fields and physiological breakthroughs. The era around saw rapid gains, with her 2003 mark lowering the barrier toward 1:05, paving the way for sub-1:03 attempts. Representative progression from 1991 is outlined below.
YearAthleteTimeLocation
1991Elana Meyer (RSA)1:07:25
2003 (GBR)1:05:40
2006Lornah Kiplagat (NED)1:06:56CPC Loop Den Haag
2017 (KEN)1:05:16 (women-only)
2021 (KEN)1:04:02
2021 (ETH)1:02:52
ratifies half marathon records through stringent criteria to guarantee accuracy and integrity. The course must be certified by an "A" or "B" grade measurer, with the start and finish points separated by more than 50% of the race distance along a straight line to minimize elevation discrepancies. Electronic timing to the nearest 0.1 second is mandatory, and the event must be a bona fide competition authorized by a member federation. Anti-doping compliance is critical, requiring immediate post-performance testing and no adverse findings. Records in mixed-gender races, as with the current elite marks, are eligible provided the field includes sufficient competitors of both sexes and no undue advantage is gained from pacing. For age-group categories, World Masters Athletics maintains separate for athletes over 35, with five-year bands; examples for the over-40 group (M40/W40) include Haile Gebrselassie's 1:01:09 in 2013 for men and Edna Kiplagat's 1:07:52 in 2019 for women, both ratified under similar measurement and anti-doping standards but tailored to masters events. Progression in masters often mirrors elite trends but at scaled paces, with recent updates at World Masters Championships highlighting ongoing improvements.

All-Time Top Performers

The all-time top performers in the half marathon are dominated by athletes from , particularly and , who have set the majority of the fastest times since the early 2000s. recognizes only performances from certified courses meeting eligibility criteria, including proper distance measurement and no excessive , though road races rarely feature wind gauges like track events; invalidations are uncommon but can occur for course irregularities or doping violations. The focus on post-2000 times reflects significant advancements in , pacing, and footwear technology, notably carbon-plated "super shoes" introduced around 2017, which have improved by up to 4% and fueled controversies over fairness and , especially for athletes from resource-limited regions. Among men, of holds the top mark with 56:42 at the 2025 Barcelona Half Marathon, slashing 48 seconds off the previous record and bringing sub-57-minute performances into regular contention. The second-fastest is of at 57:30 from the 2024 Half Marathon, followed closely by of at 57:32 in the 2020 event, highlighting how mass-paced elite fields in have produced multiple top times, with duplicates from single events accounting for over a third of the top 25. Other notable entries include Hagos Gebrhiwet () at 57:41 (2023 ) and () at 57:49 (2020 ), underscoring the tight clustering of times under 58 minutes among East African runners.
RankTimeAthleteNationalityDateVenue
156:42UGA16 Feb 2025 (ESP)
257:30ETH27 Oct 2024 (ESP)
357:32KEN6 Dec 2020 (ESP)
457:41Hagos GebrhiwetETH22 Oct 2023 (ESP)
557:49KEN6 Dec 2020 (ESP)
657:50ETH22 Oct 2023 (ESP)
757:59Alexander MunyaoKEN6 Dec 2020 (ESP)
858:01KEN15 Sep 2019 (DEN)
958:05Sabastian Kimaru SaweKEN15 Sep 2024 (DEN)
1058:07Abel KipchumbaKEN24 Oct 2021 (ESP)
For women, of leads with 1:02:52 at the 2021 Valencia Half Marathon, a mixed-gender race mark that remains the fastest overall. Agnes Ngetich of follows with 1:03:04 from the 2024 Valencia event, with her 2025 Valencia performance of 1:03:08 ranking third all-time; the top 25 features near-total dominance by Ethiopian and Kenyan athletes, with 22 of them from these nations, reflecting high-altitude training advantages and regional talent pipelines.
RankTimeAthleteNationalityDateVenue
11:02:52Letesenbet GideyETH24 Oct 2021Valencia (ESP)
21:03:04Agnes Jebet NgetichKEN27 Oct 2024Valencia (ESP)
31:03:08Agnes Jebet NgetichKEN26 Oct 2025Valencia (ESP)
41:03:21Fotyen TesfayETH27 Oct 2024Valencia (ESP)
51:03:32Lilian Kasait RengerukKEN27 Oct 2024Valencia (ESP)
61:03:51Yalemzerf YehualawETH24 Oct 2021Valencia (ESP)
71:04:02Ruth ChepngetichKEN4 Apr 2021Istanbul (TUR)
81:04:13Joyciline JepkosgeiKEN16 Feb 2025Barcelona (ESP)
91:04:14Girmawit GebrzihairETH19 Feb 2022Ras Al Khaimah (UAE)
101:04:14Ejgayehu TayeETH27 Oct 2024Valencia (ESP)
Trends show men's times accelerating toward sub-60 minutes, with Kiplimo's 2025 performance signaling potential breakthroughs aided by optimized pacing and super shoes, though debates persist on whether such tech artificially inflates records. Women's progression has quickened since the , dropping from mid-1:04 averages in 2010 to under 1:03 for the top tier by 2025, driven by increased participation in fast courses like and , where 15 of the women's top 25 originated.

Average Finish Times and Benchmarks

While world records and all-time top performers represent the elite level of half marathon running, the majority of participants are recreational runners with more modest goals. Average finish times for half marathons (13.1 miles or 21.1 km) vary depending on the dataset, but analyses from running platforms often place the overall average between approximately 1:50 and 2:10 hours. A "good" half marathon time is subjective and depends on age, gender, and experience, but common benchmarks classify a good time as around 1:50 or better across all runners. For men, a good performance is frequently cited as 1:43 to 1:55, while for women it is around 2:00 to 2:15. Beginners and novice runners may consider finishing in under 2:30 to 3:00 hours a solid achievement, reflecting their starting point and training. A popular goal among recreational participants is to break two hours (sub-2:00). These times stand in contrast to the elite records, which are well under an hour for men and just over an hour for women, underscoring the wide spectrum of abilities and the accessibility of the half marathon as a distance for runners of all levels.

Health and Participation

Physical Benefits and Accessibility

Participating in half marathon running offers significant cardiovascular benefits, primarily through structured training that enhances aerobic capacity and vascular health. Regular endurance training can increase VO2 max by 5-15% in untrained individuals, allowing the body to more efficiently utilize oxygen during exercise. This improvement correlates with better overall endurance and reduced risk of cardiovascular disease. Additionally, endurance running training, such as for a marathon, has been shown to lower systolic blood pressure by approximately 4 mmHg and diastolic by 3 mmHg, contributing to healthier arterial function and decreased vascular stiffness. Beyond physical cardiovascular gains, half marathon running promotes improvements by triggering the release of , which act as natural mood elevators and pain relievers. This endorphin response helps alleviate symptoms of anxiety and depression, with studies indicating enhanced emotional well-being and reduced perceived stress levels among regular runners. The rhythmic nature of running further fosters a meditative state, aiding in stress reduction and improved focus without requiring specialized equipment. Half marathons emphasize accessibility through dedicated adaptive categories that enable participation for individuals with disabilities, including visually impaired runners and parathletes. Many major events provide guide runners for those with vision impairments and accommodations for physical challenges, such as divisions or tandem setups, ensuring equitable competition under classifications from organizations like World Para Athletics. To lower entry barriers for novices, structured beginner programs like "couch-to-half marathon" plans—typically spanning 12-20 weeks—gradually build from walking to running 13.1 miles, making the distance approachable for sedentary individuals. Globally, half marathon participation reflects broad inclusivity, with millions of finishers annually in the and women comprising up to 53% of entrants in some events, surpassing male participation in certain races. In 2024, half marathon finishers increased by 20.9% globally in surveyed events, reaching 1,513,531 finishers. This demographic shift highlights the event's social appeal, fostering community and diversity across ages and backgrounds, with finishers increasing by over 20% in recent years. Over the long term, consistent half marathon training supports enhanced through weight-bearing impacts that stimulate osteogenesis, helping to counteract age-related bone loss more effectively than non-impact activities. It also aids by promoting sustained expenditure and metabolic , typically leading to gradual fat loss without the higher physiological demands and recovery needs of full marathons.

Risks, Injuries, and Prevention

Participating in half marathon training and racing carries risks of both overuse and acute injuries, primarily due to the repetitive impact and prolonged exertion involved. Overuse injuries, which account for 50% to 75% of all running-related issues, commonly include (medial tibial stress syndrome), affecting 13.6% to 20% of runners and up to 60% of lower limb injuries. Iliotibial band syndrome, a frequent cause of lateral , occurs in 5% to 14% of runners. Stress fractures, resulting from cumulative bone stress, impact up to 20% of runners over their careers. Acute risks during races include from excessive fluid intake without adequate sodium replacement, with incidences ranging from 3.8% to 6% in half marathons under hot conditions. Key risk factors exacerbate these injuries, such as sudden increases in training volume; the widely recommended 10% rule advises limiting weekly mileage increases to no more than 10% to allow tissue adaptation and reduce overuse risk. Poor , including inefficient stride or foot strike patterns, contribute to imbalances that heighten likelihood, while demographic differences play a role—women face at least twice the risk of stress fractures compared to men due to factors like lower and hormonal influences. Prevention strategies emphasize proactive measures to mitigate these risks. Gradual progression following the 10% rule, combined with for core and leg muscles two to per week, has been shown to lower rates by enhancing stability and resilience. , often via video assessment, identifies and corrects biomechanical flaws to prevent issues like IT band strain. Medical screening prior to training, including BMI evaluation, is crucial, as higher BMI correlates with elevated risk in novice and overweight runners. Post-race recovery focuses on immediate care to minimize complications from any emerging injuries. The method—rest, ice, compression, and elevation—is the standard initial protocol for acute injuries, helping reduce swelling and pain in the first 48 to 72 hours. Runners should seek professional medical help if symptoms like severe pain, inability to bear weight, or persistent swelling occur beyond 72 hours, or if signs of stress fractures such as localized tenderness appear. Injuries contribute to approximately 27% of did-not-finish (DNF) occurrences in races, though overall DNF rates for half marathons remain low at 1% to 3%.

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