Debru reached his first [[ATP Challenger Tour|Challenger]] quarterfinal in his first appearance of the year, at the [[2023 Oeiras Indoors|Oeiras Indoors]], Portugal. He reached another quarterfinal a month later at the [[2023 Challenger La Manche|Challenger La Manche]] in [[Cherbourg]], defeating [[Kenny de Schepper]] before falling to British [[Jan Choinski]]. At his second French Open qualifying appearance he lost in the first round to Dominican [[Nick Hardt]].
Debru reached his first [[ATP Challenger Tour|Challenger]] quarterfinal in his first appearance of the year, at the [[2023 Oeiras Indoors|Oeiras Indoors]], Portugal. He reached another quarterfinal a month later at the [[2023 Challenger La Manche|Challenger La Manche]] in [[Cherbourg]], defeating [[Kenny de Schepper]] before falling to British [[Jan Choinski]]. At his second French Open qualifying appearance he lost in the first round to Dominican [[Nick Hardt]].
At the [[2023 Open Sopra Steria de Lyon|Open Sopra Steria de Lyon]] Debru made it to his first [[ATP Challenger Tour|Challenger]] semifinal having defeated former Top 20 [[Benoit Paire]], however he then lost to [[Alexander Ritschard]].
the [[2023 Open Sopra Steria de Lyon|Open Sopra Steria de Lyon]] Debru made it to his first [[ATP Challenger Tour|Challenger]] semifinal having defeated former Top 20 [[Benoit Paire]], however he then lost to [[Alexander Ritschard]].
In July, Debru won his first [[ITF Men’s World Tennis Tour|ITF]] title in [[Gubbio]], Italy by defeating [[Federico Arnaboldi]] in the final. He had reached the semifinals the year prior.
In July, Debru won his first [[ITF Men’s World Tennis Tour|ITF]] title in [[Gubbio]], Italy by defeating [[Federico Arnaboldi]] in the final. He had reached the semifinals the year prior.
In August, Debru reached his first final on the [[ATP Challenger Tour]] in [[IBG Prague Open|Prague]], as a qualifier, losing to [[Rudolf Molleker]] in the championship match.
In August, Debru reached his first final on the [[ATP Challenger Tour]] in [[IBG Prague Open|Prague]], as a qualifier, losing to [[Rudolf Molleker]] in the championship match.
French tennis player (born 2005)
Gabriel Debru (born 21 December 2005) is a French tennis player.
He has a career-high ATP singles ranking of world No. 233, achieved on 17 March 2025 and a doubles ranking of No. 273, achieved on 4 November 2024.[2]
Professional career
2022: Major qualifying debut, French Open Junior champion
In 2022, Debru won the French Open‘s boys single title.[3] Later that year, he reached the finals of the Wimbledon‘s boys doubles title, playing along with Paul Inchauspé.
In May 2022, Debru made his debut at the French Open qualifying round, winning against Arthur Fils but then losing in the second round.
2023: First ITF title and Challenger final
Debru reached his first Challenger quarterfinal in his first appearance of the year, at the Oeiras Indoors, Portugal. He reached another quarterfinal a month later at the Challenger La Manche in Cherbourg, defeating Kenny de Schepper before falling to British Jan Choinski. At his second French Open qualifying appearance he lost in the first round to Dominican Nick Hardt.
In June, at the Open Sopra Steria de Lyon, Debru made it to his first Challenger semifinal having defeated former Top 20 Benoit Paire, however he then lost to Alexander Ritschard.
In July, Debru won his first ITF title in Gubbio, Italy by defeating Federico Arnaboldi in the final. He had reached the semifinals the year prior.
In August, Debru reached his first final on the ATP Challenger Tour in Prague, as a qualifier, losing to Rudolf Molleker in the championship match.
2024: Challenger titles, Top 250 debut
In July, Debru won his maiden Challenger title in Troyes, defeating third seed Timofey Skatov in the final. At 18 years and 6 months, he became the youngest French player to win a Challenger title since 2017. The only French players to win at a younger age were Richard Gasquet, Fabrice Santoro, Gael Monfils and Corentin Moutet. João Fonseca, Joel Schwärzler, Debru, Rei Sakamoto and Learner Tien became the youngest champions of 2024 at that level.[4][5]
In August, Debru won his second Challenger singles title in Como, defeating Ignacio Buse in the final.[6] He became the third-youngest Frenchman to win multiple Challenger trophies (since 1978), joining former Top 10 players Richard Gasquet and Gael Monfils.[7] In October, Debru won his maiden Challenger doubles title in Saint-Brieuc, partnering with Geoffrey Blancaneaux.[8]
2025-2026: College years
Debru announced he would join the University of Illinois in the 2025-26 school year where his brother Mathis already played.[9]
Grand Slam performance timeline
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (P#) preliminary round; (DNQ) did not qualify; (A) absent; (Z#) Davis/Fed Cup Zonal Group (with number indication) or (PO) play-off; (G) gold, (S) silver or (B) bronze Olympic/Paralympic medal; (NMS) not a Masters tournament; (NTI) not a Tier I tournament; (P) postponed; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player’s participation has ended.
Singles
ATP Challenger Tour finals
Singles: 3 (2 titles, 1 runner-up)
|
Doubles: 1 (title)
|
ITF World Tennis Tour finals
Singles: 3 (3 titles)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Win | 1–0 | Jul 2023 | M15 Gubbio, Italy | WTT | Clay |  |
6–4, 3–6, 6–3 |
| Win | 2–0 | Jul 2024 | M25 Uriage-les-Bains, France | WTT | Clay |  |
6–1, 6–3 |
| Win | 3–0 | Nov 2024 | M25 Heraklion, Greece | WTT | Hard |  |
3–6, 6–4, 6–2 |
Doubles: 4 (2 titles, 2 runner-ups)
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | Feb 2023 | M15 Grenoble, France | WTT | Hard (i) | |
|
6–2, 6–3 |
| Loss | 1–1 | May 2023 | M15 Antalya, Turkey | WTT | Clay |  |
 |
2–6, 6–1, [9–11] |
| Win | 2–1 | May 2023 | M15 Antalya, Turkey | WTT | Clay | |
|
7–6(7–4), 6–3 |
| Loss | 2–2 | Jul 2024 | M25 Uriage-les-Bains, France | WTT | Clay | |
|
3–6, 6–2, [5–10] |
