Gianluca Mager
Gianluca Mager 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 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)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score | ||||||||||||||||||||||||||||||
| Loss | 0–1 | [2020 Rio Open – Singles|] | Rio Open, Brazil | 500 Series | Clay |  ATP Challenger and ITF Futures finalsSingles: 17 (10–7)
|
dts|Aug 2014