Cooper Woestendick Bio
Cooper Woestendick (born November 16, 2006) is an American professional tennis player from Olathe, Kansas. He has compiled a career-high ATP singles ranking of No. 975, which he reached on August 4, 2025, and a best doubles ranking of No. 441, attained on September 8, 2025. Woestendick first drew international attention by winning the boys’ doubles title at the 2024 Australian Open with fellow American Maxwell Exsted. Since then he has balanced junior success with a measured transition to the professional circuit.
Early Life and Background
Woestendick was born on November 16, 2006, and was raised in Olathe, Kansas, after being born in Topeka. He is the son of Dan Woestendick and Kristi (née Lewis) Woestendick, both of whom were college athletes. Dan and Kristi played tennis and basketball, respectively, at Washburn University, giving their son early exposure to competitive sport.
Through his maternal line, Woestendick is the grandson of Delvy Lewis, a former University of Kansas basketball player. Growing up in a family with a deep tradition in college athletics, he gravitated toward tennis and began developing his game in Kansas before pursuing national-level competition.
Path to Professional Tennis
Woestendick’s junior career gained momentum in 2023, when he won the inaugural International Junior Championships held at Indian Wells, the site of the famed BNP Paribas Open. En route to the title in March 2023, he defeated Oliver Bonding, Keegan Rice, and Roy Horovitz, signaling his arrival on the international stage.
He continued his rise on the ITF junior circuit, winning the Traralgon Junior International doubles title in January 2024 alongside compatriot Maxwell Exsted. The pair then carried that momentum into the 2024 Australian Open junior doubles draw, where they toppled top seeds Federico Cinà and Rei Sakamoto in three sets before defeating Viktor Frydrych and Petr Brunclik in the final. By February 12, 2024, those results had lifted Woestendick to an ITF combined ranking of No. 12.
Cooper Woestendick Career
Early Career (2023–2024)
Woestendick’s first significant professional result came in April 2024, when he won his maiden pro title at the M15 Vero Beach in Florida. Partnering with Alexander Razeghi, he captured the doubles crown at a Futures-level event, marking a clear step from junior standouts to the professional ranks.
That Vero Beach triumph gave Woestendick his first ATP ranking points and opened the door to higher-level events. Throughout 2024 he continued to split time between ITF junior tournaments and lower-tier professional events, sharpening his game against older competition.
ATP Tour and Grand Slam Breakthrough (2025)
In 2025, Woestendick received a wildcard into the men’s doubles at the US Open alongside longtime partner Maxwell Exsted. In the first round the pair produced one of the tournament’s biggest upsets, defeating experienced campaigners David Goffin and Alexandre Müller. Their run ended in the second round, where they fell in three sets to sixth seeds Joe Salisbury and Neal Skupski.
That deep run at a Grand Slam helped him post a career-high ATP singles ranking of No. 975 on August 4, 2025, and a career-high doubles ranking of No. 441 on September 8, 2025. On the doubles side, his ATP Tour, Grand Slam, and Davis Cup career record stands at 1–1, with the US Open second-round appearance counting among the highlights of his year.
Driving Style and Strengths
Woestendick is widely regarded as a strong doubles player whose aggressive return game and confident net play translate well on faster surfaces. His comfort in junior doubles finals, including three-set victories over seeded pairs, suggests a player who thrives under pressure and is comfortable closing out tight matches with his partner.
Notable Events and Milestones
Among his signature moments are the 2024 Australian Open boys’ doubles title, the inaugural International Junior Championships crown at Indian Wells in 2023, and his 2025 US Open men’s doubles wildcard run that included an upset of Goffin and Müller. Each milestone has arrived in quick succession, reflecting a steep upward trajectory in both the junior and professional ranks.
Cooper Woestendick Career Wins
Across junior and professional competition, Woestendick has built a résumé that includes the 2024 Australian Open boys’ doubles title, the 2023 International Junior Championships at Indian Wells, the 2024 Traralgon Junior International doubles crown, and the 2024 M15 Vero Beach professional doubles title. His prize money on record totals US $38,082, reflecting his early results on the ATP and ITF circuits.
Grand Slam and Tour Highlights
Woestendick’s most prestigious win came at the 2024 Australian Open, where he and Exsted captured the boys’ doubles trophy. The American then reached the second round of the men’s doubles at the 2025 US Open as a wildcard, securing a main-draw Grand Slam victory before falling to the sixth-seeded British pair Salisbury and Skupski.
Other Wins and Performances
Beyond his Grand Slam appearances, Woestendick added the M15 Vero Beach doubles title in April 2024, his first professional trophy. Combined with consistent ITF junior results that pushed him to a combined ranking of No. 12, his developmental résumé points to steady, measurable progress in the early stages of his career.
Cooper Woestendick Family
Family Background and Athletic Lineage
Woestendick comes from an athletic family with deep ties to college sports in Kansas. His father, Dan Woestendick, played tennis at Washburn University, while his mother, Kristi, played basketball at the same school. Through his mother, he is the grandson of Delvy Lewis, a University of Kansas alumnus and notable basketball player.
Personal Life
Raised in Olathe, Kansas, Woestendick grew up surrounded by family members who had competed at the collegiate level. The household’s tennis tradition, in particular, helped shape his early development and laid the foundation for his transition to international junior and professional tennis.
2025 Season Performance
The 2025 season has been a breakthrough year for Woestendick. He set a career-high ATP singles ranking of No. 975 in August and followed it with a career-best doubles ranking of No. 441 in September, the latter fueled by his run to the second round of the men’s doubles at the US Open with Maxwell Exsted.
That Grand Slam showing, headlined by an upset of David Goffin and Alexandre Müller in the first round, established him as a credible doubles threat at the ATP level. With current ATP doubles and singles rankings of No. 461 and No. 1,149, respectively, as of March 16, 2026, Woestendick enters the next phase of his career with momentum and a clear development path.