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Modesto Nuts
Modesto Nuts
Modesto Nuts
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Modesto Nuts
Team logo Cap insignia
Minor league affiliations
Class
LeagueCalifornia League (1946–1964, 1966–2025)
Major league affiliations
Team
Minor league titles
League titles (11)
  • 1950
  • 1954
  • 1959
  • 1966
  • 1972
  • 1982
  • 1984
  • 2004
  • 2017
  • 2023
  • 2024
Division titles (5)
  • 2004
  • 2012
  • 2017
  • 2023
  • 2024
First-half titles (1)
  • 2024
Second-half titles (1)
  • 2023
Team data
Name
  • Modesto Nuts (2005–2025)
  • Modesto A's (1975–2004)
  • Modesto Reds (1966–1974)
  • Modesto Colts (1962–1964)
  • Modesto Reds (1946–1961)
MascotsAl The Almond
Wally The Walnut
Shelley The Pistachio
BallparkJohn Thurman Field
Websitemilb.com/modesto

The Modesto Nuts were a Minor League Baseball team of the California League, most recently the Single-A affiliate of the Seattle Mariners. They were located in Modesto, California, and were named for the several types of nuts grown in the Central Valley. They played their home games at John Thurman Field, which opened in 1955.

The team was known as the Modesto Athletics (or A's) from 1975 to 2004. The club was also known as the Modesto Reds (1966–1974 and 1946–1961) and Modesto Colts (1962–1964).

The Nuts were expected to leave Modesto following the 2024 season after the city and the Mariners were unable to agree on paying for ballpark improvements that Major League Baseball required. However, a deal was reached to keep the team in Modesto through at least the 2025 season. After the 2024 season, the Mariners sold the team to Diamond Baseball Holdings, who immediately announced that the 2025 season would be the last in Modesto. For the 2026 season, as part of a shuffle of Diamond-owned team relocations, the Nuts franchise will relocate to San Bernardino as a new incarnation of the Inland Empire 66ers.

History

[edit]

HWS Baseball purchased the Modesto Minor League Baseball franchise in 2005.[1] The franchise became an affiliate of the Colorado Rockies that year.[2] The Nuts nicknames was selected by fans in an online vote, over the names Crop Dusters, Derailers, Steel, and Strikes. Nuts relates to the agricultural industry in the region. Fans and a Modesto Bee sports columnist were initially negative about all five potential names.[3]

On June 2, 2006, manager Chad Kreuter resigned to become the head coach of the University of Southern California Trojans. Kreuter replaced his father-in-law, Mike Gillespie. Hitting coach Glenallen Hill was named the new Nuts manager.[4]

After the 2006 season, John Thurman Field was renovated with a new scoreboard and upgraded infield. The following opening day, April 7, 2007, was the largest crowd ever at a Modesto minor league game.[5]

On June 21, 2011, the Nuts hosted the 2011 California League/Carolina League All-Star Game.[6] The California League won, with Jedd Gyorko and Rey Navarro named MVPs.[7]

In 2011, the Nuts set their attendance record for five straight seasons and were honored as back-to-back California League Organization of the Year for 2010 and 2011.[8]

Following the 2016 season, the Seattle Mariners purchased a majority share of the Nuts, and the teams entered into a player development contract making Modesto a Mariners affiliate. HWS Baseball continued to manage the team's day-to-day operations.[9]

The Nuts won the California League championship in 2017, sweeping both the division series and the league series and winning nine games in a row dating back to the final three regular-season games.[10] This was the Nuts' ninth league title and the first as part of the Mariners organization.

In conjunction with Major League Baseball (MLB)'s restructuring of Minor League Baseball in 2021, the Nuts were organized into the Low-A West.[11] In 2022, Low-A West was renamed the California League, the name historically used by the regional circuit prior to the 2021 reorganization and was reclassified as a Single-A circuit.[12] In 2023, Modesto won the California League championship.[13]

After the city of Modesto and the Mariners were unable to come to terms on who would pay for the roughly $32 million in improvements to John Thurman Field mandated by MLB, the Nuts planned to leave Modesto after the 2024 season.[14] However, the city and the Nuts came to an agreement in August 2024 to keep the team in Modesto for another year. The Nuts agreed to pay an annual rent of $600,000 with an additional $75,000 for improving the field. A long-term lease agreement had to be reached by April 1, 2025, or the team could leave following the season.[15] A month after it was announced the Nuts would stay in Modesto for another year, they won their second straight California League title.[16]

The team was sold to Diamond Baseball Holdings on December 12, 2024.[17] Diamond, the largest owner of MiLB teams, planned a "musical chairs" format in the aftermath of the purchase that will take effect in the 2026 season. The Nuts would move to San Bernardino and assume the Inland Empire 66ers nickname, but keep the Mariners' affiliation, reuniting the two for the first time since 2006. The 66ers would relocate to Rancho Cucamonga and assume the Rancho Cucamonga Quakes nickname and be affiliated with the Los Angeles Angels for the first time since 2010. The Quakes will move to Ontario and a new 10,000-seat stadium being built there to become the Ontario Tower Buzzers.[18]

The Nuts played their final home game on August 31, 2025, losing to the Stockton Ports, 5–4, with 2,295 people in attendance.[19] Their final game was played on September 8 against the San Jose Giants at Excite Ballpark, winning 9–6 in 10 innings.[20]

Josh Suchon was the team's radio play-by-play broadcaster in 2007.[21] Greg Young was the team's play-by-play broadcaster from 2008 to 2011.[22] He was replaced by Alex Margulies for 2012 and 2013.[23] Keaton Gillogly did play-by-play from 2014 to 2022.[24][25] Mario Ramos, who had been the PA announcer, was the team's final play-by-play broadcaster.[26][27]

A Nuts mascot in 2009

Mascots

[edit]

The Nuts had three mascots: Al the Almond, Wally the Walnut, and Shelley the Pistachio.[28][2]

Notable alumni

[edit]

Years with the Nuts or other Modesto minor league team are listed in parentheses.

Baseball Hall of Fame alumni

[edit]

Other notable alumni

[edit]

The following players were MLB All-Stars, league leaders, and/or award winners

References

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

Modesto Nuts

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from Grokipedia
The Modesto Nuts were a Minor League Baseball team based in , that played in the as the affiliate of the Seattle Mariners from 2017 to 2025. The team competed at John Thurman Field, a municipally owned with a capacity of 4,000, and drew an average attendance of approximately 1,300 fans per game during their final seasons in the city. Known for their energetic fan base and community engagement, the Nuts represented a longstanding tradition of in Modesto, where the sport has been played since 1914. The franchise traces its roots to 1946, when it began as a member of the , initially known as the Modesto Reds and later adopting various names tied to major league affiliations. From 1975 to 2004, the team operated as the Modesto , serving as the Class A affiliate of the and producing notable major league talents such as and . In 2005, following the end of the Athletics affiliation, the team rebranded as the Modesto Nuts—named after the region's agricultural heritage of nut production—and became the affiliate of the Rockies, a partnership that lasted through 2016. Over their two decades as the Modesto Nuts, the team achieved significant success, winning 11 championships in franchise history, including four during their Mariners era in 2017, 2023, and 2024. The organization developed numerous players who advanced to the major leagues, including Mariners prospects like and during the Seattle affiliation. Beyond on-field accomplishments, the Nuts were integral to Modesto's cultural fabric, hosting family-friendly events and contributing to local economic vitality through tourism and sponsorships. In December 2024, the Seattle Mariners sold the team to , the largest operator of franchises, leading to the announcement of its after the 2025 season. The Nuts played their final home games in Modesto in late August 2025, concluding nearly 80 years of affiliated at John Thurman Field, before moving to , where they rebranded as the for the 2026 season while retaining their Mariners affiliation. The departure prompted the City of Modesto to secure a new professional team from the Pioneer League, an independent league, to continue at the stadium starting in 2026.

Franchise Overview

Affiliation and League History

The Modesto Nuts franchise originated in 1946 as the Modesto Reds, established as a Class C team in the California League. The team had various short-term major league affiliations starting in 1948 with the St. Louis Browns, followed by the Pittsburgh Pirates (1949–1952), Milwaukee Braves (1953), New York Yankees (1954–1961), Houston Colt .45s (1962–1964), and Kansas City Athletics (1966), before partnering with the St. Louis Cardinals from 1967 to 1974. The California League itself underwent several classification changes during this period, with the Modesto team classified as Class C from 1946 to 1962. The franchise's league status evolved further in subsequent decades, reflecting broader shifts in minor league baseball structure. It was reclassified to Class A for the 1963–1964 seasons and again from 1966 to 1989, before advancing to Class A-Advanced from 1990 to 2020. This was followed by a long association with the Kansas City Athletics (later the ) from 1975 to 2004, the Colorado Rockies from 2005 to 2016, and the from 2017 to 2025. The 2021 reorganization of significantly impacted the team's placement, redesignating it as the Seattle Mariners' affiliate and temporarily moving it to the Low-A West league for that season before its return to the in 2022, where it remained through 2025 under the classification. In December 2024, the Mariners sold the franchise to , announcing that it would relocate to San Bernardino after the 2025 season and rebrand as the , thereby concluding the team's long history in Modesto.

Branding and Identity

The Modesto Nuts franchise has experienced several name changes that reflect its affiliations and local ties. Established in 1946 as the Modesto Reds, the team retained that name until 1961 and revived it from 1966 to 1974. It briefly operated as the Modesto Colts from 1962 to 1964 before adopting the Modesto A's moniker from 1975 to 2004 in alignment with its affiliation. In 2005, following a shift to the Rockies affiliation, the team rebranded as the Modesto Nuts to honor the Central Valley's thriving nut agriculture, including almonds, walnuts, and pistachios. The primary logo introduced in 2005 features an arched "Modesto" wordmark in white lettering above "NUTS" in bold red block letters with a light beige outline, evoking the city's iconic welcome arch. At the center are two anthropomorphic nut characters—Al the Almond and Wally the Walnut—clutching a and ball, clad in red caps bearing a white "M" cap insignia as a nod to the historic Modesto Reds. The cap logo itself consists of a simple white "M" on a solid red background. This design encapsulates a playful, agriculture-inspired identity tied to the region's nut production. In 2014, the branding evolved with the addition of a third nut character, a female , to further emphasize local crops and expand the nut motif across logos and merchandise; fans voted on her name from options including and . Uniforms since 2005 have centered on a red-and-black , with primary jerseys featuring the arched and nut figures on the chest, complemented by white pants and red-trimmed caps. Alternate designs incorporate nut-themed patterns, such as textured nut shells or crop-inspired graphics, while maintaining the core red, black, white, tan, and gray palette to reinforce the agricultural theme. The "Nuts" identity prominently celebrates Modesto's role as a hub for nut farming, with branding elements like nut mascots and motifs appearing in promotions, stadium signage, and fan apparel to connect the team to the community's economic and . Since 2019, as part of Baseball's Copa de la Diversión initiative, the team has adopted an alternate identity, the Alebrijes de Modesto, featuring vibrant, mythical creatures in multicolored jerseys to honor the city's nearly 50% population and promote cultural inclusivity during select home games. The 2025 season represented the final year of the Nuts branding before the franchise's relocation to .

Historical Development

Early Years (1946–1974)

The Modesto Reds were established in 1946 as an independent franchise in the California League, joining amid a postwar boom in minor league baseball following the league's suspension during World War II. The team debuted that season at Modesto's Municipal Ballpark in a Class C circuit that featured six teams and emphasized affordable family entertainment in California's Central Valley agricultural communities. Initial operations faced typical challenges of the era, including fluctuating affiliations and financial strains common to lower-classification leagues, but the Reds quickly built local support through consistent play and community ties in the farming region. Affiliations shifted frequently in the early years, reflecting the instability of partnerships. The team was independent in 1946–1947, affiliated with the in 1948, from 1949 to 1952, Milwaukee Braves in 1953, and New York Yankees from 1954 through 1961, fostering player development and operational growth. The franchise briefly rebranded as the Modesto Colts from 1962 to 1964 under the Houston Colt .45s, went dormant in 1965 due to league realignments and restructuring, and revived as the Reds in 1966 initially with the Kansas City Athletics before aligning with the Cardinals from 1967 to 1974. These changes coincided with the California League's upgrade from Class C to Class A in 1963, elevating competition and requiring adaptations in facilities and scouting. The Reds achieved notable success during this period, capturing California League championships in 1950, 1954, and 1959 under independent and Yankees affiliations, highlighting their competitive edge in a circuit known for developing talent. Further titles followed in 1966 with the Athletics and in 1972 under the Cardinals, underscoring the team's resilience amid affiliation shifts. Fan attendance grew steadily, supported by Modesto's agricultural economy and the appeal of night games in the region's warm climate. This era laid the foundation for the franchise's transition to a long-term partnership with the Oakland Athletics in 1975.

Oakland Athletics Affiliation (1975–2004)

In 1975, the Modesto team established a long-term affiliation with the , rebranding as the Modesto A's to reflect the major league club's identity. This partnership marked the franchise's first stable MLB connection, with the team's uniforms and logos adopting Oakland's signature and gold color scheme, though adapted with local elements like script lettering emphasizing "Modesto." The Modesto A's competed in the throughout the affiliation, initially at Class A level and advancing to Class A-Advanced status by the 1990s, serving as a primary for Oakland's prospect development. This era provided organizational stability, with the team posting strong seasons such as the campaign's 96-40 record, the highest winning percentage (.706) in franchise during the period. The affiliation proved instrumental in nurturing talent that fueled Oakland's success, including players who appeared on the Athletics' World Series rosters in 1989 and 1990. Notable alumni from Modesto included outfielder Jose Canseco, who played for the A's in 1983–1984 before becoming a key contributor to both championship teams, and first baseman Mark McGwire, who spent 1984 with Modesto and hit 39 home runs for Oakland in 1989 en route to the title. Other contributors like Rickey Henderson (1977) and Dave Stewart (1978) also progressed through the system to anchor the 1989 squad. On the field, the Modesto A's secured three California League championships during the affiliation. In 1982, managed by Pete Whisenant, they finished 94-46 and defeated the Visalia Oaks 4 games to 2 in the finals. The 1984 title followed under George Mitterwald, who guided the team to an 83-56 regular season and a 3-1 playoff victory over the Bakersfield Dodgers. The partnership concluded triumphantly in 2004 with a 90-50 record and a 3-2 championship series win against the Lancaster JetHawks, managed by . Managerial continuity underscored the era's emphasis on development, with long tenures fostering player growth. Keith Lieppman, a key figure in Oakland's farm system, managed Modesto from 1980 to 1981—leading to a 74-65 finish in 1980—and returned briefly in 1989, compiling a 149-136 record over his full stints. Mitterwald's three-year run (1983–1985) further exemplified the stability, blending winning records with talent preparation for the majors. The Oakland affiliation enhanced Modesto's local baseball culture, drawing increased fan engagement during the Athletics' late-1980s dynasty. Attendance grew alongside Oakland's success, with the team averaging around 845 fans per game in 1975 (totaling 59,145) and reaching 62,089 overall in amid rising regional interest in the A's stars. This period solidified community ties, positioning Modesto as a vital extension of Oakland's legacy. The 2004 championship run capped the affiliation, after which Modesto transitioned to a new partnership.

Colorado Rockies and Seattle Mariners Eras (2005–2025)

Following the conclusion of their long-standing affiliation with the after the 2004 season, the Modesto franchise entered a period of transition by partnering with the Colorado Rockies as their affiliate starting in 2005. This shift marked the beginning of a 12-year relationship that emphasized player development, with the team achieving playoff appearances in eight of those seasons, including a Northern Division title in 2012. The Rockies extended the player development contract multiple times, most recently through 2016, fostering the growth of prospects who advanced to the major leagues. In 2017, the franchise transitioned to a new primary affiliation with the Seattle Mariners, beginning a nine-year partnership that brought renewed competitive energy. The move coincided with immediate on-field success, as the Nuts captured the championship in their inaugural season under the Mariners, sweeping the Stockton Ports in the division series and going undefeated (6-0) through the postseason to defeat the in the finals. This title, the first for the franchise since 2004, highlighted the team's offensive and pitching depth in a 74-66 regular season. The Mariners era continued to build momentum, culminating in back-to-back California League championships in 2023 and 2024. In 2023, the Nuts posted a franchise-best 77-55 regular-season record, clinching the North Division and sweeping through the playoffs to secure the league title against the Rancho Cucamonga Quakes. They repeated the feat in 2024 with a 73-57 mark, again dominating the postseason with sweeps in both the division and championship series to defeat the San Jose Giants. These victories under manager Zach Vincej represented the second and third titles during the Mariners affiliation, underscoring sustained excellence in a challenging league. The 2025 season served as the franchise's farewell in Modesto, ending with a 69-63 record that placed third in the North Division and missed the playoffs. The final home game at John Thurman Field occurred on August 31 against the Stockton Ports, drawing 2,295 fans but resulting in a 5-4 loss amid emotional ceremonies honoring the team's legacy. The overall season concluded on September 7 with a 9-6 victory in 10 innings over the , providing a dramatic capstone to 80 years of in the city. The franchise's departure from Modesto was announced in December 2024, when the Seattle Mariners sold the team to , which planned to relocate it to San Bernardino for the 2026 season as the . Economic pressures, including the inability to reach agreement on stadium extensions and renovations estimated at $32 million for John Thurman Field, contributed to the decision, as rising operational costs strained the partnership between the city and the club. Despite a one-year extension to complete the 2025 campaign, the move ended the Nuts' tenure in Modesto after decades of community integration.

Venue

John Thurman Field

John Thurman Field, situated at 601 Neece Drive in , opened in 1955 as Del Field, providing a dedicated venue for the city's team in the and marking a significant upgrade from prior temporary or municipal playing fields used since the franchise's inception in 1946. Named for Delbert E. Webb, the New York Yankees owner and former Modesto Reds player from the 1920s, the ballpark was constructed by the City of Modesto to support ongoing play. With an initial of approximately 4,000, it quickly became the central hub for local enthusiasts. The venue was renamed John Thurman Field in 1983 to commemorate John E. Thurman, a veteran who served on the Stanislaus County Board of Supervisors and as a State Assemblyman, where he championed programs and community recreation initiatives that bolstered facilities like this one. Ownership has remained with the City of Modesto since the ballpark's inception, ensuring its role as a public asset that has hosted affiliates without interruption for nearly seven decades. In 1997, the facility received major renovations to modernize its infrastructure while preserving its foundational structure. Designed with a classic layout, the field measures 312 feet to left field, 400 feet to center field, and 319 feet to right field, fostering a hitter-friendly environment typical of ballparks. Beyond , the supports multi-use events, expanding to a capacity of 7,500, with 677 on-site parking spaces and an additional 360 in overflow areas to accommodate larger crowds.

Renovations and Amenities

In 1997, John Thurman Field underwent a major $3.93 million renovation that transformed the facility while preserving its original 1955 structure, including the creation of a modern facade, expanded seating areas, and upgraded clubhouses for both home and visiting teams. This project essentially rebuilt the ballpark to meet standards, enhancing spectator comfort and operational efficiency without altering its historic footprint. Subsequent upgrades in the late and focused on and , such as the installation of a new multi-media in 2007 that improved game presentation and fan engagement. By 2016, additional safety enhancements were implemented, including extensions to the protective netting to cover all lower-level seats, while the invested over $1.3 million in capital projects since 2017 to address maintenance and compliance needs, such as potential ADA accommodations in seating and pathways. The ballpark offers a range of fan-oriented amenities, highlighted by its concessions featuring popular items like hot dogs and specialty options such as , available at affordable prices. features include a dedicated children's play area, picnic zones for group outings, and alcohol-free sections to ensure a welcoming environment for . Hospitality options encompass two luxury suites accommodating up to 16 guests each, equipped with climate control, private restrooms, and customizable catering packages, alongside party decks for barbecues behind home plate. Looking ahead, following the Modesto Nuts' departure after the 2025 season, John Thurman Field will host the Modesto Glow Riders, a new unaffiliated Pioneer League team starting in 2026 under a long-term lease, with the city allocating up to $950,000 for further upgrades to safety features and fan amenities to support the venue's continued role in .

Players and Staff

Notable Alumni

The Modesto Nuts franchise, spanning affiliations with the Cincinnati Reds, Oakland Athletics, Colorado Rockies, and Seattle Mariners, has produced over 100 players and managers who reached Major League Baseball, contributing significantly to the sport's history. Notable alumni include five Baseball Hall of Famers, whose tenures in Modesto laid foundational experiences for their legendary careers. The team's development pipeline has consistently funneled talent to the majors, with players excelling in power hitting, base stealing, relief pitching, and fielding.

Early Years (1946–1974)

During its initial era as the Modesto Reds, the team nurtured several future Hall of Famers under Cincinnati Reds management. Reggie Jackson played outfield for the 1966 Modesto Reds, batting .299 with 21 home runs and 60 RBIs in 56 games, showcasing the power hitting that defined his MLB career with 563 home runs and three World Series titles. Rollie Fingers pitched for the same 1966 squad, going 11-6 with a 2.77 ERA in 22 games, honing the submarine delivery that led to 341 saves, three World Series rings, and induction into the Hall of Fame in 1992. Tony La Russa played infield for the 1966 Modesto Reds, batting .291 with 20 doubles and 18 stolen bases, before becoming a Hall of Fame manager with three World Series championships. Sparky Anderson served as manager of the 1967 Modesto Reds at age 33, guiding the team to a 79-61 record and developing his tactical acumen that resulted in four World Series championships as an MLB manager and his 2010 Hall of Fame enshrinement. Ted Simmons caught for the 1968 Modesto Reds, batting .331 with 28 home runs and 117 RBIs, en route to an 8-time All-Star career and 2020 Hall of Fame induction. These early alumni exemplified Modesto's role in fostering elite talent during its Reds affiliation.

Oakland Athletics Affiliation (1975–2004)

The Modesto A's era produced speedsters, catchers, and versatile players who became MLB staples, with Rickey Henderson emerging as the franchise's most iconic base stealer. Henderson debuted professionally with the 1977 Modesto A's, stealing 95 bases in 134 games while batting .345, a precursor to his MLB record of 1,406 stolen bases and 1999 Hall of Fame induction. This period's alumni emphasized athleticism and longevity, contributing to Oakland's contention in the late 20th century.

Colorado Rockies and Seattle Mariners Eras (2005–2025)

Since adopting the Nuts moniker in 2005, Modesto has developed infield stars and outfielders who have driven recent playoff pushes for their parent clubs. played shortstop for the 2005 Modesto Nuts, batting .266 with 4 home runs in 22 games during his first professional season, setting the stage for five selections and two Gloves in MLB. caught for the 2005 Modesto Nuts, hitting .276 with 11 home runs in 74 games, building the defensive skills that anchored lineups for the Rockies and other teams over 12 MLB seasons. , a , spent 2011 with the Nuts, batting .298 with 20 home runs, fueling his trajectory to ten consecutive Gloves, five Silver Sluggers, and status as one of the premier defensive players in Rockies and Cardinals history. outfielded for Modesto in 2009, posting a .307 average and 7 home runs, which translated to four nods and the 2017 National League batting title with . pitched out of the for the 2013 Nuts, recording a 3.10 in 29 appearances, before becoming a key reliever for the Rockies and later the . Under the Mariners affiliation starting in 2017, starred in center field for Modesto in 2019, batting .462 with 2 home runs in 17 games and earning Player of the Year honors, leading to his 2022 AL Rookie of the Year award and two appearances by 2025. José Caballero, an infielder, played for the Nuts in 2019–2021, hitting .280 with strong defense that carried into his MLB debut with in 2023 and subsequent Rays tenure. These Nuts-era alumni highlight Modesto's continued emphasis on high-upside prospects who achieve immediate major league impact.

Coaching Staff

The 2025 coaching staff for the Modesto Nuts, the Seattle Mariners' Low-A affiliate, marked a transitional year as the team entered its final season in the California League before relocation. Luis Caballero served as manager in his first year with the Nuts, bringing extensive experience from within the Mariners' minor league system where he had coached since transitioning from playing in 2018. Josh Morgan joined as bench coach, a newcomer to coaching but familiar with the organization after playing in the Mariners' system and spending 2024 with the independent league Dock Hounds. Brock Stassi was appointed hitting coach, leveraging his prior roles in the Philadelphia Phillies' organization as hitting coach for the High-A Reading Fightin Phils in 2024 and the Single-A Jersey Shore BlueClaws in 2023. Jake Witt returned for his third consecutive season as pitching coach, contributing to the team's development of young arms in the Mariners' pipeline. Luke Carlson served as strength and conditioning coach. Historically, the Nuts have seen a succession of managers who emphasized player development during their affiliations with the (1975–2004) and later the Mariners (2005–2025). Keith Lieppman managed the team in 1981 during the A's era, guiding them to a 67-71 record. More recently, led the Nuts from 2017 to 2018, earning California League Manager of the Year honors in 2017 after securing the league championship with a 74-68 record in his debut season. Caballero's background includes playing as a in the Mariners' system from 2010 to 2017, followed by coaching stints in extended and lower levels, focusing on infield instruction and baserunning. Stassi, a former Phillies minor leaguer who reached the majors briefly in 2017, brought hitting expertise honed through his playing career and coaching progression in Philadelphia's player development system. Witt, a Central Valley native from , emphasized local ties and pitching mechanics, having previously coached at West Hills College Coalinga before joining the Mariners in 2023. Morgan's transition to coaching highlighted his recent playing experience, aiding in-game strategy and player support. Carlson focused on physical for the demanding . The staff's collective impact underscored the Nuts' commitment to player development, particularly in the 2023 and 2024 seasons under prior leadership where Witt's pitching guidance helped secure back-to-back championships. This focus on skill refinement and performance analytics contributed to promoting several prospects to higher Mariners affiliates, aligning with the organization's farm system goals.

Roster and Rehabilitation Assignments

The Modesto Nuts operate with a standard roster of 28 to 30 active players, comprising a balanced mix of pitchers, infielders, outfielders, and catchers primarily sourced from the Mariners' developmental system. For the 2025 opening day on April 4, the team featured a roster including infielders like Starlin Aguilar and Nick Becker, outfielders such as Curtis Washington, and pitchers including right-handers Ryan Sloan and Gage Boehm, along with left-hander Calvin Schapira. As a key affiliate in the Mariners' pipeline since 2017—and previously for the Colorado Rockies from 2005 to 2016—the Modesto Nuts have regularly hosted Major League Baseball players on injury rehabilitation assignments to facilitate their return to the active roster. These stints allow big-league talent to accumulate game reps in a controlled environment at John Thurman Field. Notable examples include Colorado Rockies pitcher David Hale, who began a rehab assignment with the Nuts in April 2015 following an oblique strain, making a start against the Visalia Rawhide. Outfielder Charlie Blackmon joined the roster in April 2016 to recover from turf toe, playing multiple games before his activation. Pitcher Jon Gray also rehabbed there that same month after foot surgery. For the Mariners, catcher Mike Zunino caught three games with the Nuts in April 2018 while healing from a shoulder injury. More recently, outfielder Kyle Lewis split his 2025 rehabilitation time between the Nuts and the Arizona Complex League Mariners, batting .257 with seven home runs in 56 games. Rehabilitation assignments to the Nuts typically span 5 to 10 games, aligning with MLB guidelines that limit such activations to 20 days for position players and 30 days for pitchers to ensure gradual recovery without overexertion. These high-profile visits have drawn increased local fan interest, enhancing attendance during the series.

Achievements and Records

Championships and Playoff Success

The Modesto Nuts have won 11 California League championships, tying them for the second-most in league history. These titles were secured in 1950, 1954, 1959, 1966, 1972, 1982, 1984, 2004, 2017, 2023, and 2024. The franchise's first championship came in 1950 as the Modesto Reds, who defeated the Stockton Ports 4 games to 1 in the league finals. Subsequent titles under the Reds moniker followed in 1954 (4-1 over San Jose Red Sox), 1959 (4-2 over Bakersfield Bears), 1966, and 1972 (2-0 over Bakersfield Dodgers). As the Modesto A's from 1975 to 2004, the team claimed two championships: in 1982 (4-2 over Visalia Oaks) and 1984 (3-1 over Bakersfield Dodgers), with the 2004 title (3-2 over Lancaster JetHawks) marking the end of their affiliation. Since rebranding as the Nuts in 2005 and affiliating with the Seattle Mariners in 2017, they have added three more: a 3-0 sweep of Lancaster in 2017, bringing the total to three championships during the Mariners era, a pair of 2-0 sweeps over San Jose and in 2023, and a 2-1 victory over in 2024 after sweeping San Jose 2-0 in the division series. The Nuts have also captured five division titles in the California League's split-season format, where first- and second-half winners advance to best-of-three before the championship round. These occurred in 2004 (North Division overall), 2012 (North Division), 2017 (North Division first half), 2023 (North Division second half), and 2024 (North Division first half). Key playoff successes include the 2017 campaign, the franchise's first title under Mariners ownership and featuring a six-game postseason sweep amid a late-season surge; the 2004 championship as a fitting close to the A's era; and the back-to-back titles in 2023 and 2024 under manager Zach Vincej, the first such streak in franchise history.

Seasonal Records and Attendance

The Modesto Nuts achieved their highest win total during the Rockies and Mariners eras with 77 victories in the 2023 season (.583 ). Conversely, the team endured its worst performance with 97 losses in , finishing with a .307 . In their final season as the Modesto affiliate in 2025, the Nuts posted a 69-63 record, good for a .523 and third place in the North Division. Seasonal trends showed variability, with the Nuts recording 74 wins and 66 losses () in 2017, securing third place in the North Division, followed by a down year in 2018 with 62 wins and 78 losses () and a seventh-place finish. The 2020 season was entirely cancelled due to the , marking the first such interruption in the franchise's modern history. The 2021 campaign, while not shortened in games played (64-51 record), operated under strict protocols including limited seating pods and health restrictions that impacted operations. Subsequent seasons returned to fuller schedules, such as the even 66-66 mark () in 2022. Attendance at John Thurman Field consistently ranked among the highest in the , with the Nuts drawing a franchise-record 180,785 fans in 2011 across 70 home games, marking the fifth consecutive season of setting a new mark and averaging approximately 2,582 per game. This peak reflected strong regional interest, and the team maintained averages above 2,500 fans per game in several prior years, such as 2,347 in 2008. More recently, totals have varied, with 83,077 fans in 2023 (1,259 average over 66 home games) and 87,008 in 2025 (1,318 average). High attendance stemmed from family-oriented promotions, such as educational outreach and community events, alongside robust local support in the Central Valley that fostered repeat visitation. In 2025, despite the announcement of the team's relocation to San Bernardino following the season, crowds remained steady, with the final home game drawing 2,295 fans, underscoring enduring community ties.

Team Culture

Mascots

The Modesto Nuts' mascots, introduced as part of the team's rebrand to reflect the region's agricultural heritage in nut production, consist of a trio of anthropomorphic nut characters that entertain fans and engage with the community. and debuted that year, establishing the core of the team's lively mascot program, while joined in 2014 to complete the group. These mascots appear at home games, promotional events, and regional outings, performing routines and interacting with attendees to enhance the fan experience. Al the Almond serves as the primary , embodying the almond crop that dominates Modesto's Central Valley economy. Debuting in 2005, Al is depicted as a sprightly, hard-shelled character wearing a red cap with a white "M" in homage to the franchise's earlier Modesto Reds . Known for high-energy antics such as dances and playful skits during game breaks, Al frequently interacts with fans through autographs, photo opportunities, and on-field races, fostering a fun atmosphere at John Thurman Field. Wally the Walnut, introduced alongside Al in 2005, adds variety to the duo with his enthusiastic personality and is particularly recognized for his dance routines that energize crowds. Often portrayed as Al's comedic counterpart in a matching red cap, Wally participates in synchronized performances and fan-engaging stunts, contributing to the mascots' reputation as an entertaining pair that has remained consistent through the team's history up to 2025. Shelley the Pistachio, named through a 2014 fan vote and debuting that June, brings a feminine dynamic to the trio as a charismatic character focused on engaging younger audiences. She joins Al and Wally in dance moves and lighthearted interactions, with a special emphasis on school visits and youth events to promote fun. No significant redesigns or additions to the mascot lineup have occurred since her introduction, maintaining the group's role in the Nuts' branding and community presence.

Community Involvement and Traditions

The Modesto Nuts have long emphasized community engagement through educational and charitable initiatives, particularly their annual Reading Program, which incentivizes elementary school students to read by offering weekly prizes and culminating in free game tickets, hot dogs, and drinks for completers. Sponsored by partners like The Parks Group and Modesto City Schools Education Foundation, the program has reached thousands of students annually, with over 43,000 participants served in recent years across the Central Valley. The organization has also committed significant financial support to local causes, donating over $170,000 in 2021 to community programs, including $3,100 directly to charities like Second Harvest of Central Valley and Ceres Unified School District. These contributions encompassed ticket donations, fundraising from events such as 50/50 raffles and silent auctions, and volunteer hours totaling 148 in that year. In 2021, the Nuts About Health and Wellness Program engaged approximately 10,000 children at 20 schools, promoting literacy and healthy habits. Partnerships have amplified these efforts; for instance, in 2019, the Nuts collaborated with Health Plan of San Joaquin (HPSJ) on health-focused events during a "Copa de la Diversión" series, rebranding as "Los Alebrijes" to celebrate Latino culture, with activities like "Día de los Niños" providing health resources and backpacks to the first 1,000 fans while promoting check-ups and immunizations. Beloved traditions have fostered a strong, family-oriented fan base in the Central Valley, where affordable tickets—capped at $10 for box seats—draw generations to John Thurman Field for wholesome entertainment. The team's annual 4th of July game features post-game fireworks displays, turning the holiday into a community highlight with patriotic festivities and family gatherings. In 2011, the Nuts hosted the California League/Carolina League All-Star Game, drawing regional crowds for a showcase event presented by local sponsors that celebrated the team's role in Central Valley baseball culture. Players and staff have participated in service events, contributing to broader community volunteerism that aligns with initiatives like local clean-ups and charity drives, reflecting the organization's dedication to regional goodwill. As the Nuts concluded their affiliated era in 2025, farewell events honored this legacy, including a by Hall of Famer and former Modesto Reds alum during the final homestand in August, alongside free entry for alumni and emotional send-offs that underscored decades of family traditions. Following the relocation, excitement builds for the new Pioneer League team at John Thurman Field starting in 2026, named the Modesto Glow Riders after a public naming contest that concluded on November 10, 2025.

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