Cooper Woestendick (born November 16, 2006) is an American tennis player. He has a career-high ATP singles ranking of world No. 975, achieved on 4 August 2025.[1][2] He won the boys' doubles event at the 2024 Australian Open.
From Olathe, Kansas, he won the inaugural International Junior Championships held at the site of the famed BNP Paribas Open in Indian Wells in March 2023 defeating Oliver Bonding, Keegan Rice and Roy Horovitz on his route to the title.[3]
Woestendick won the Traralgon Junior International doubles competition alongside compatriot Maxwell Exsted in January 2024. The pair reached the final of the junior doubles at the 2024 Australian Open with a three-set win over the top seeds Federico Cinà and Rei Sakamoto.[4] In the final they overcame Viktor Frydrych and Petr Brunclik to win the title.[5][6]
Alongside Alexander Razeghi, he won his first Pro title at the Vero Beach 15K Futures In Vero Beach, Florida on April 27, 2024.[7]
Awarded a wildcard alongside compatriot Maxwell Exsted to the men's doubles at the 2025 US Open, they caused a shock upset win against experienced players David Goffin and Alexandre Muller in the first round.[8] In the second round they were defeated in three sets by the British pair Joe Salisbury and Neal Skupski.[9]
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Apr 2024 | M15 Vero Beach, US | WTT | Clay |  Alexander Razeghi
|
Alex Jones Miles Jones
|
6–4, 4–6, [10–3] |
| Win | 2–0 | Jun 2025 | M25 Laval, Canada | WTT | Hard |  Duncan Chan
|
Alafia Ayeni Ethan Cook
|
7–6(7–5), 6–0 |
| Result | Year | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|
| Win | 2024 | Australian Open | Hard | Maxwell Exsted
|
 Petr Brunclík Viktor Frydrych
|
6–3, 7–5 |
