Tristan Lamasine

Tristan Lamasine (; born 5 March 1993) is a French former professional tennis player. Lamasine has a career-high ATP singles ranking of No. 181 achieved on 3 August 2015 and a career-high ATP doubles ranking of No. 85 achieved on 13 June 2016.

Career

2010–15: Major debut, Maiden Challenger title From 2010 to 2015, Lamasine played mostly in the ATP Challenger Tour and the ITF Men's Circuit, where he made his ITF singles debut (at a tournament in France) in September 2010 and his Challenger singles debut (at the 2011 Challenger Banque Nationale de Rimouski) in March 2011.

During the same period, on the ATP Tour, Lamasine played in singles in only four events (2011 Metz, 2014 Gstaad, 2014 Vienna and 2015 Marseille) and was eliminated in the singles qualifying rounds of all of them.

Lamasine made his Grand Slam singles and men's doubles debut at the 2014 French Open. He was beaten in the second qualifying round of the men's singles. He and Laurent Lokoli, who had received a wildcard for the men's doubles main draw, lost in the men's doubles first round to the 4th-seeded pair of David Marrero and Fernando Verdasco.

In July 2015, Lamasine reached his first career ATP Challenger Tour singles final in Tampere. He lifted his first Challenger title, defeating André Ghem in the final 6–3, 6–2.

Lamasine won two singles qualifying matches to reach the singles main draw of the 2016 Swedish Open, but lost in the first round to another qualifier, Calvin Hemery, in three sets. That was his first main-draw singles match at a non-Grand Slam ATP Tour event.

Lamasine won two singles qualifying matches to reach the singles main draw of the 2016 Swiss Open. He went on to register his first career singles win in the main draw of an ATP World Tour tournament by defeating Radu Albot in straight sets in the first round. He lost his second-round match to third seed Albert Ramos-Viñolas in straight sets. At that tournament, Lamasine made his doubles debut in a non-Grand Slam ATP Tour event by partnering Paul-Henri Mathieu; the unseeded pair lost in the first round.

2024–25: Retirement He received a wildcard in doubles for the 2024 ATP Lyon Open partnering Tom Paris (tennis).

Lamasine retired from professional tennis during the summer of 2025 and started coaching Hugo Gaston.

ATP Challenger Tour and ITF career finals

Singles: 13 (5–8) Legend (singles)ATP Challenger Tour (1–0)ITF Futures Tour (4–8)Titles by surfaceHard (2–6)Clay (3–2)Grass (0–0)Carpet (0–0)

Doubles: 32 (19–13) Legend (doubles)ATP Challenger Tour (12–7)ITF Futures Tour (7–6)Titles by surfaceHard (10–3)Clay (8–8)Grass (0–0)Carpet (1–2)

Performance timelines

Singles Current through the 2023 Wimbledon.

Doubles Current through the 2023 Wimbledon.