Gianluca Mager

Gianluca Mager (born 1 December 1994) is an Italian former professional tennis player. He has a career-high ATP singles ranking of No. 62 achieved on 22 November 2021. He also has a career high ATP doubles ranking of No. 310 achieved on 10 June 2019.

Personal Info Born in Liguria, from a family of German origins.

In 2010, Mager was disqualified for failing a doping test after smoking marijuana at a party.

Professional career Mager made his ATP main draw debut at the 2017 Internazionali BNL d'Italia after earning a wildcard in the pre-qualifying wildcard tournament. He was defeated by Aljaž Bedene in the first round.

He got his first singles ATP main-draw win in the first round in Stockholm in October 2019 against Spaniard Pablo Andújar.

At the 2020 Rio Open in Brazil, an ATP 500 level tournament on clay courts, he beat world No. 34 Casper Ruud in the first round, and world No. 4 Dominic Thiem in the quarterfinals to reach the semifinal as a qualifier. Mager reached his first ATP Tour final, defeating lucky loser Attila Balázs in the semifinals before losing to Chilean Cristian Garín, 6–73–7, 5–7. Mager started the tournament No. 114 in the world and qualified into the main draw. After this good performance, Mager reached a singles ranking of World No. 77.

At the 2021 Sofia Open Mager reached his fourth quarterfinal of the season at the ATP 250 level (after Delray Beach, Belgrade and Kitzbühel) defeating sixth seed Adrian Mannarino and Miomir Kecmanović. He lost in the quarterfinals to Gaël Monfils in straight sets 6–2, 6–2 in 50 minutes. He was aiming to reach his second tour-level semifinal and first since 2020 in Rio de Janeiro.

Mager announced his retirement from professional tennis in August 2025.

ATP career finals Singles: 1 (1 runner–up) LegendGrand Slam (0–0)ATP Masters 1000 (0–0)ATP 500 (0–1)ATP 250 (0–0)Titles by surfaceHard (0–0)Clay (0–1)Grass (0–0)Titles by settingOutdoor (0–1)Indoor (0–0)

ATP Challenger and ITF Futures finals

Singles: 17 (10–7) Legend (singles)ATP Challenger Tour (6–1)ITF Futures Tour (4–6)Titles by surfaceHard (1–0)Clay (9–7)

Doubles: 6 (2–4) Legend (doubles)ATP Challenger Tour (1–0)ITF Futures Tour (1–4)Titles by surfaceHard (1–1)Clay (1–3)

Record against top 10 players Mager's match record against those who have been ranked in the top 10, with those who are active in boldface. Only ATP Tour main draw matches and Davis Cup matches are considered:

Wins over top 10 players He has a record against players who were, at the time the match was played, ranked in the top 10 Season 2020 Total Wins 1 1 PlayerRankEventSurfaceRdScore20201. Dominic ThiemNo. 4Rio Open, BrazilClayQF7–67–4, 7–5128