Gilles-Arnaud Bailly
Belgian tennis player (born 2005)
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Gilles-Arnaud Bailly (born 19 September 2005) is a Belgian professional tennis player. He has a career-high ATP singles ranking of No. 201 achieved on 10 November 2025 and a doubles ranking of No. 1,723, reached on 27 February 2023.[1]
Belgium| Country (sports) | Belgium |
|---|---|
| Born | 19 September 2005 Hasselt, Belgium |
| Height | 1.80 m (5 ft 11 in) |
| Plays | Right-handed (two-handed backhand) |
| Coach | Dries Beerden |
| Prize money | US $220,512 |
| Singles | |
| Career record | 1–3 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 7 ITF |
| Highest ranking | No. 201 (10 November 2025) |
| Current ranking | No. 208 (22 June 2026) |
| Grand Slam singles results | |
| Australian Open | Q3 (2026) |
| French Open | Q1 (2026) |
| Wimbledon | Q1 (2026) |
| Doubles | |
| Career record | 0–0 (at ATP Tour level, Grand Slam level, and in Davis Cup) |
| Career titles | 0 |
| Highest ranking | No. 1,723 (27 February 2023) |
| Last updated on: 22 June 2026. | |
Junior career
Bailly was a runner-up at the 2022 French Open and at the 2022 US Open in the boys' singles category.[2][3] He reached an ITF junior combined ranking of world No. 1 on 28 November 2022. He became the first Junior player from Belgium to be crowned a world junior champion by the ITF.[4] He had notable results on ITF junior circuit, maintaining a 97–40 singles win-loss record.[5]
Professional career
2022: ATP Tour debut
Bailly made his debut at the 2022 European Open where he received a main draw wildcard but lost in the first round to compatriot David Goffin despite playing for more than three hours and winning the second set.[6][7]
2023-25: First Challenger final and ATP win, top 205
Bailly received another invitation at European Open, for the qualies.[8] The following year, he qualified to the main draw of his home tournament but lost to German Daniel Altmaier.[9]
Ranked No. 247, Bailly qualified again for his home event, that edition hosted in Brussels,[10][11] and recorded his first ATP Tour win, over the same player, Altmaier, who defeated him the previous year. He lost to third seed Jiří Lehečka in the second round.[12][13][14] As a result, he moved into the top 235 in the singles rankings and entered the qualification zone of the NextGen Finals. He eventually made it as a first alternate, having been ranked 11th in the race, following the withdrawal of the two top players.[15]
Bailly finished that year at No. 204 in singles, having reached a career-high of world No. 201 the week before.[16] It was the third-largest rankings climb for the 2025 season - behind Rafael Jódar and Petr Brunclík - raising close to 600 positions.[17]
Performance timeline
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |
Singles
Current through the 2026 Australian Open.
| Tournament | 2026 | SR | W–L | Win% | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | ||||||||||
| Australian Open | Q3 | 0 / 0 | 0–0 | – | ||||||
| French Open | 0 / 0 | 0–0 | – | |||||||
| Wimbledon | 0 / 0 | 0–0 | – | |||||||
| US Open | 0 / 0 | 0–0 | – | |||||||
| Win–loss | 0–0 | 0 / 0 | 0–0 | – | ||||||
ATP Challenger Tour finals
|
Challenger |
Singles: 1 (runner-up)
| Result | W–L | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|---|
| Loss | 0–1 | Aug 2025 | CT Porto Cup, Portugal | Clay |  Guy den Ouden |
4–6, 2–6 |
ITF World Tennis Tour finals
|
World Tennis |
Singles: 12 (7 titles, 5 runner-ups)
| Finals by surface |
|---|
| Hard (2–2) |
| Clay (5–3) |
| Result | W–L | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|---|
| Loss | 0–1 | Mar 2023 | M15 Antalya, Turkey | Clay |  Dragoș Nicolae Mădăraș |
3–6, 1–6 |
| Win | 1–1 | Mar 2023 | M15 Antalya, Turkey | Clay |  Peter Heller |
6–3, 4–6, 7–5 |
| Win | 2–1 | Sep 2023 | M15 Santa Margherita di Pula, Italy | Clay |  Enrico Dalla Valle |
6–1, 6–2 |
| Loss | 2–2 | Jan 2025 | M15 Monastir, Tunisia | Hard |  Moez Echargui |
6–3, 4–6, 5–7 |
| Win | 3–2 | Feb 2025 | M15 Monastir, Tunisia | Hard |  Branko Djurić |
6–4, 6–2 |
| Loss | 3–3 | Apr 2025 | M15 Antalya, Turkey | Clay |  Alex Molčan |
0–6, 2–6 |
| Win | 4–3 | Apr 2025 | M15 Oegstgeest, Netherlands | Clay |  David Jordà Sanchis |
7–6(7–5), 6–2 |
| Win | 5–3 | Jul 2025 | M25 Uriage-les-Bains, France | Clay |  Marat Sharipov |
6–4, 7–6(7–1) |
| Loss | 5–4 | Aug 2025 | M25 Koksijde, Belgium | Clay |  Lilian Marmousez |
6–2, 2–6, 3–6 |
| Win | 6–4 | Sep 2025 | M25 Meerbusch, Germany | Clay | Max Houkes |
6–4, 3–6, 7–6(7–5) |
| Win | 7–4 | Oct 2025 | M25 Sintra, Portugal | Hard |  Adrià Soriano Barrera |
3–6, 7–6(9–7), 6–1 |
| Loss | 7–5 | Oct 2025 | M25 Sintra, Portugal | Hard | Carlo Alberto Caniato |
5–7, 2–6 |
Junior Grand Slam finals
Singles: 2 (2 runner-ups)
| Result | Year | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|
| Loss | 2022 | French Open | Clay | Gabriel Debru |
6–7(5–7), 3–6 |
| Loss | 2022 | US Open | Hard | Martín Landaluce |
6–7(3–7), 7–5, 2–6 |
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