Sander Gillé (born 15 January 1991) is a Belgian professional tennis player who specializes in doubles. He has a career-high doubles ranking of World No. 18 by the ATP, achieved on 25 September 2023. He also has a career-high singles ranking of World No. 574, reached on 24 December 2018. Gillé has won eight ATP Tour doubles titles with partner Joran Vliegen, including an ATP Masters 1000 title at the 2024 Monte-Carlo Masters.
Career 2019: Three ATP doubles titles Gillé won his first ATP Tour doubles title at the 2019 Swedish Open with fellow Belgian Joran Vliegen. A week later, they won their second title at Gstaad. In the next week, their 11-match winning streak was ended in the final of Kitzbühel. Two months later, Gillé and Vliegen picked up their third title of 2019 at the Zhuhai Championships.
2020–2021: Two ATP doubles titles, first Major quarterfinal, Masters semifinal, top 25 Gillé won two more titles with his partner Jordan Vliegen at the 2020 Astana Open and at the 2021 Singapore Open. They also reached the quarterfinals at the 2020 US Open (tennis) losing to the eventual runners-up Mektic/Koolhof, their best showing as a pair at a Grand Slam thus far.
The pair made their first Masters 1000 semifinal at the 2021 Madrid Open, losing to the second-seeded pair of Pavic/Mektic. As a result, Gillé reached a career-high of No. 33 on 10 May 2021.
2023: First Grand Slam doubles final, top 20 debut At the 2023 French Open, Gillé having never get passed the third round at this Major, partnering Vliegen as an unseeded pair, they reached their first Major final defeating fourth seeds Croatians Nikola Mektić/Mate Pavić, Roman Jebavý/Luis David Martínez, ninth seeds Santiago González/Édouard Roger-Vasselin, 14th seed Argentines Andrés Molteni/Máximo González and 12th seeds Andreas Mies/Matwé Middelkoop. In the final, they lost to Ivan Dodig and Austin Krajicek in straight sets. He made his top 20 debut on 7 August 2023.
2024–2025: Masters title, new partnership with Zieliński
At the 2024 Monte-Carlo Masters with Vliegen, they defeated wildcard pair of Jannik Sinner and Lorenzo Sonego, defending champions and second seeds Austin Krajicek and Ivan Dodig in the second round, and sixth seeds Tim Pütz and Kevin Krawietz to reach the semifinals. They reached their first Masters 1000 final upsetting third seeds Horacio Zeballos and Marcel Granollers. They won their first Masters title defeating alternate pair of Alexander Zverev and Marcelo Melo. They became just the second and third Belgians to win a Masters 1000 doubles title after Xavier Malisse won in Indian Wells in 2010.
Significant finals Grand Slam finals Doubles: 1 (runner-up) ResultYearTournamentSurfacePartnerOpponentsScoreLoss2023French Open Clay Joran Vliegen Ivan Dodig Austin Krajicek 3–6, 1–6
Masters 1000 finals Doubles: 1 (title) OutcomeYearChampionshipSurfacePartnerOpponents ScoreWin2024Monte CarloClay Joran Vliegen Marcelo Melo Alexander Zverev5–7, 6–3, [10–5]
ATP career finals Doubles: 15 (8 titles, 7 runner-ups) LegendGrand Slam tournaments (0–1)ATP World Tour Finals (0–0)ATP World Tour Masters 1000 (1–0)ATP World Tour 500 Series (0–2)ATP World Tour 250 Series (7–4)Finals by surfaceHard (4–3)Clay (4–4)Grass (0–0)Finals by settingOutdoor (6–5)Indoor (2–2)
ResultW–LDateTournamentTierSurfacePartnerOpponentsScoreWin1–0Swedish Open250 SeriesClay Joran Vliegen Federico Delbonis Horacio Zeballos6–7(5–7), 7–5, [10–5]Win2–0Swiss Open250 SeriesClay Joran Vliegen Philipp Oswald Filip Polášek 6–4, 6–3Loss2–1Austrian Open250 SeriesClay Joran Vliegen Philipp Oswald Filip Polášek4–6, 4–6Win3–1Zhuhai Championships, China250 SeriesHard Joran Vliegen Marcelo Demoliner Matwé Middelkoop7–6(7–2), 7–6(7–4)Win4–1Astana Open, Kazakhstan250 SeriesHard (i) Joran Vliegen Max Purcell Luke Saville7–5, 6–3Win5–1Singapore Open250 SeriesHard (i) Joran Vliegen Matthew Ebden John-Patrick Smith 6–2, 6–3Loss5–2Bavarian Championships, Germany250 SeriesClay Joran Vliegen Wesley Koolhof Kevin Krawietz6–4, 4–6, [5–10]Win6–2Maharashtra Open, India250 SeriesHard Joran Vliegen Sriram Balaji Jeevan Nedunchezhiyan6–4, 6–4Win7–2Estoril Open, Portugal250 SeriesClay Joran Vliegen Nikola Ćaćić Miomir Kecmanović6–3, 6–4Loss7–3French Open, FranceGrand SlamClay Joran Vliegen Ivan Dodig Austin Krajicek3–6, 1–6Loss7–4Hamburg European Open, Germany500 SeriesClay Joran Vliegen Kevin Krawietz Tim Pütz6–7(4–7), 3–6Loss7–5Hong Kong Open, Hong Kong250 SeriesHard Joran Vliegen Marcelo Arévalo Mate Pavić6–7(3–7), 4–6Win8–5Monte-Carlo Masters, MonacoMasters 1000Clay Joran Vliegen Marcelo Melo Alexander Zverev5–7, 6–3, [10–5]Loss8–6Rotterdam Open, NetherlandsATP 500Hard (i) Jan Zieliński Simone Bolelli Andrea Vavassori2–6, 6–4, [6–10]Loss8–7Open 13, FranceATP 250Hard (i) Jan Zieliński Benjamin Bonzi Pierre-Hugues Herbert3–6, 4–6
Challenger and Futures finals Singles: 2 (1–1) LegendATP Challenger Tour (0–0)ITF Futures Tour (1–1)Finals by surfaceHard (0–1)Clay (1–0)
ResultW–LDateTournamentTierSurfaceOpponentScoreLoss0–1Norway F3, OsloFuturesHard (i) Carl Söderlund4–6, 2–6Win1–1Ukraine F1, CherkasyFuturesClay Vladyslav Manafov6–4, 3–6, 6–4
Doubles: 69 (46–23) LegendATP Challenger Tour (20–9)ITF Futures Tour (26–14)Finals by surfaceHard (16–7)Clay (29–16)Grass (0–0)Carpet (1–0)