_01.jpg) Blumberg at the2023 Cary Challenger II | |
| Country (sports) |  United States |
|---|---|
| Residence | Greenwich, Connecticut, United States |
| Born | (1998-01-26)January 26, 1998 (age 27) New York City, United States |
| Height | 1.88 m (6 ft 2 in) |
| Turned pro | 2021 |
| Retired | 2024 |
| Plays | Right-handed (two-handed backhand) |
| College | North Carolina |
| Coach | Mary Bryan Pope |
| Prize money | $1,354,543 |
| Singles | |
| Career record | 0–1 (atATP Tour level,Grand Slam level, and inDavis Cup) |
| Career titles | 0 |
| Highest ranking | No. 438 (January 7, 2019) |
| Grand Slam singles results | |
| US Open | Q1 (2017) |
| Doubles | |
| Career record | 34–26 (atATP Tour level,Grand Slam level, and inDavis Cup) |
| Career titles | 3 |
| Highest ranking | No. 74 (September 12, 2022) |
| Grand Slam doubles results | |
| French Open | 1R (2023) |
| Wimbledon | 2R (2022,2023) |
| US Open | 1R (2017,2022,2023,2024) |
| Grand Slam mixed doubles results | |
| US Open | SF (2022) |
| Last updated on: 5 May 2025. | |
William Blumberg (born January 26, 1998) is a former American professionaltennis player. He has a career-high ATP doublesranking of world No. 74 achieved on 12 September 2022. He has a career-high singles ranking of No. 438 reached on 18 February 2019.
William's parents are Amy and David Blumberg. Blumberg identifies asCatholic, like his mother, while his father is Jewish. The family often has Jewish food during holidays.[1]
Blumberg has two brothers. He attendedGreenwich High School inGreenwich, Connecticut. As a senior at Greenwich, he went undefeated and did not lose a set all season.[2] In 2016, he won the Class LL state invitational title, dropping only 3 games across the whole tournament.[3]
During his junior career, he played at each of the fourGrand Slam junior tournaments.[4] He reached the final in the boys' doubles at the2015 French Open partnering fellow AmericanTommy Paul.
Blumberg was the nation's top recruit for the class of 2016.[5] After going 26–2 during his first season atNorth Carolina,[6] Blumberg was namedACC Freshman of the Year, first-team all-ACC, andITA Men's Tennis Rookie of the Year.[7] He was also named the Most Outstanding Player at the2017 NCAA tournament.[8] In May 2021, he became the first 10-time All-America in ITA history, winning the honor in both singles and doubles in 2017, 2018, 2019, 2020 and 2021.[9][10][11]
Blumberg made his Grand Slam main draw debut at the2017 US Open after receiving a wildcard for the doubles main draw with compatriotSpencer Papa.[12]
He reached a career-high of World No. 438 in singles on February 18, 2019.
He partnered as a wildcard pair withJack Sock at the2021 Hall of Fame Open in Newport, where he won his first ATP match. The unseeded pair reached the finals by defeating fellow AmericansTennys Sandgren andDenis Kudla, third seedsJohn-Patrick Smith andHarri Heliövaara, and second seedsJonathan Erlich andSantiago González.[13] In the final they defeatedAustin Krajicek andVasek Pospisil.[14][15][16] With this run he entered the top 300 at World No. 284 on July 19, 2021, rising more than 1000 spots in the doubles rankings.
He made his debut in the top 200 on November 1, 2021, after winning his first and second Challengers in Cary in September and Las Vegas in October withMax Schnur. He followed that with a third Challenger win in Charlottesville in November also with Schnur.
In January, Blumberg won his fourth Challenger title in Cleveland with Schnur.
At the2022 U.S. Men's Clay Court Championships, he reached the semifinals as a wildcard pair with Schnur where they lost toIvan andMatej Sabanov.[17]
At the2022 Wimbledon Championships he made his debut at this Major partneringCasper Ruud.[18][19] They defeatedMiguel Ángel Reyes-Varela andNicolás Barrientos in the first round in a five set match with a super tiebreak, his first win at a Major. They lost in the second round toLloyd Glasspool andHarri Heliövaara.[20]
At the2022 Hall of Fame Open, he made his ATP main draw singles debut as a qualifier, losing in the first round toBenjamin Bonzi.[21] At the same tournament as the defending champion in doubles, he reached the final partneringSteve Johnson.[22] He would successfully defend his title with Johnson, defeating top seedsRaven Klaasen andMarcelo Melo in the final.[23]
He reached the top 100 at World No. 85 on August 8, 2022, following his third title at the2022 Los Cabos Open partneringMiomir Kecmanović, again defeating Klaasen and Melo in the final.[24][25]
At theUS Open he reached the mixed doubles semifinals withCaty McNally on his debut at this event for the first time at a Grand Slam defeating en route defending championsDesirae Krawczyk andNeal Skupski in the second round.
He finished the season ranked No. 100 in doubles on 21 November 2022.
He made his debut at the2023 French Open partneringMiomir Kecmanović. At the2023 Wimbledon Championships he partnered again withCasper Ruud and reached the second round before withdrawing.[26]
Blumberg reached his fifth final partnering withRinky Hijikata at the2024 Dallas Open defeating the wildcard pair ofBen Shelton andEmilio Nava before falling to the pair ofMax Purcell andJordan Thompson.[27] Blumberg partnered withJohn Peers at the2024 U.S. Men's Clay Court Championships in Houston where they defeated the wildcard pair of Shelton andAndrés Andrade in straight sets, en route to his sixth final.[28] For the second consecutive Texas-based tournament, Blumberg and his partner lost the finals to the pair of Purcell and Thompson.[29]
He retired after theUS Open in September 2024.[citation needed]
Since January 2025 he started working as a client relationship analyst forMorgan Stanley in Atlanta Georgia.[citation needed]
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Jul 2021 | Hall of Fame Open, United States | 250 Series | Grass | Jack Sock | Austin Krajicek Vasek Pospisil | 6–2, 7–6(7–3) |
| Win | 2–0 | Jul 2022 | Hall of Fame Open, United States(2) | 250 Series | Grass | Steve Johnson |  Raven Klaasen Marcelo Melo | 6–4, 7–5 |
| Win | 3–0 | Aug 2022 | Los Cabos Open, Mexico | 250 Series | Hard |  Miomir Kecmanović | Raven Klaasen Marcelo Melo | 6–0, 6–1 |
| Loss | 3–1 | Jul 2023 | Hall of Fame Open, United States | 250 Series | Grass |  Max Purcell | Nathaniel LammonsJackson Withrow | 3–6, 7–5, [5–10] |
| Loss | 3–2 | Feb 2024 | Dallas Open, United States | 250 Series | Hard (i) | Rinky Hijikata | Max PurcellJordan Thompson | 4–6, 6–2, [8–10] |
| Loss | 3–3 | Apr 2024 | U.S. Men's Clay Court Championships, United States | 250 Series | Clay | John Peers | Max Purcell Jordan Thompson | 5–7, 1–6 |
| Outcome | Year | Championship | Surface | Partner | Opponent | Score |
|---|---|---|---|---|---|---|
| Runner-up | 2015 | French Open | Clay | Tommy Paul |  Álvaro López San MartínJaume Munar | 4–6, 2–6 |
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| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Jan 2014 | USA F2,Sunrise | Futures | Clay | Frances Tiafoe | Jason JungEvan King | 7–6(7–4), 4–6, [6–10] |
| Win | 1–1 | Sep 2021 | Cary, USA | Challenger | Hard | Max Schnur | Stefan KozlovPeter Polansky | 6–4, 1–6, [10–4] |
| Win | 2–1 | Oct 2021 | Las Vegas, USA | Challenger | Hard | Max Schnur |  Jason Jung Evan King | 7–5, 6–7(5–7), [10–5] |
| Win | 3–1 | Nov 2021 | Charlottesville, USA | Challenger | Hard (i) | Max Schnur |  Treat Huey Frederik Nielsen | 3–6, 6–1, [14–12] |
| Win | 4–1 | Jan 2022 | Cleveland, USA | Challenger | Hard (i) | Max Schnur | Robert GallowayJackson Withrow | 6–3, 7–6(7–4) |
| Loss | 4–2 | Apr 2023 | Tallahassee, USA | Challenger | Clay |  Luis David Martínez |  Federico Agustín GómezNicolás Kicker | 6–7(2–7), 6–4, [11–13] |
| Win | 5–2 | Apr 2023 | Savannah, USA | Challenger | Clay | Luis David Martínez | Federico Agustín Gómez Nicolás Kicker | 6–1, 6–4 |
| Win | 6–2 | Jun 2023 | Modena, Italy | Challenger | Clay | Luis David Martínez |  Roman Jebavý Vladyslav Manafov | 6–4, 6–4 |
| Loss | 6–3 | Sep 2023 | Cary, USA | Challenger | Hard | Luis David Martínez | Andrew HarrisRinky Hijikata | 4–6, 6–3, [6–10] |
| Loss | 6–4 | Oct 2023 | Tiburon, USA | Challenger | Hard | Luis David Martínez |  Luke Johnson Skander Mansouri | 2–6, 3–6 |
| Loss | 6–5 | Jan 2024 | Cleveland, USA | Challenger | Hard (i) | Alex Lawson | George Goldhoff James Trotter | 7–6(7–0), 3–6, [8–10] |
| Loss | 6–6 | Apr 2024 | Tallahassee, USA | Challenger | Clay | Luis David Martínez |  Simon FreundJohannes Ingildsen | 5–7, 6–7(4–7) |
| Sporting positions | ||
|---|---|---|
| Preceded by | ACC Freshman of the Year 2017 | Succeeded by |
