| Challenger de Ostrava | 04/23 08:50 | 25 | [285] Tristan Lamasine v Jelle Sels [445] | 3-6,6-4,5-7 | |
| Challenger de Oeiras | 04/15 09:30 | 19 | [250] Chun Hsin Tseng v Tristan Lamasine [284] | 6-3,6-2 | |
| Challenger de Oeiras | 04/14 09:30 | 14 | [369] Arthur Weber v Tristan Lamasine [290] | 5-7,6-7 | |
| Challenger Split | 04/11 09:00 | 26 | [368] Elmer Moller v Tristan Lamasine [290] | 6-1,6-3 | |
| Challenger Split | 04/09 11:45 | 25 | [281] Jiri Vesely v Tristan Lamasine [290] | 3-6,4-6 | |
| Challenger de Barcelona | 04/02 10:20 | 25 | [187] Vitaliy Sachko v Tristan Lamasine [286] | 6-7,6-1,7-5 | |
| Challenger de Nápoles | 03/24 09:00 | 14 | Evan Furness v Tristan Lamasine | 7-5,6-1 | |
| Challenger de Lille | 02/29 13:55 | 26 | [285] Tristan Lamasine v Pierre-Hugues Herbert [166] | 1-6,5-7 | |
| Challenger de Lille | 02/27 16:00 | 25 | [201] Antoine Escoffier v Tristan Lamasine [285] | 6-7,5-7 | |
| Challenger de Lille | 02/26 09:30 | 19 | [247] Lucas Poullain v Tristan Lamasine [280] | 6-4,4-6,4-6 | |
| Challenger de Lille | 02/25 09:00 | 14 | [414] Filip Krajinovic v Tristan Lamasine [280] | 2-6,7-6,1-6 | |
| Challenger de Pau | 02/20 11:35 | 25 | [280] Tristan Lamasine v Otto Virtanen [172] | 5-7,6-7 |
Tristan Lamasine (5 de marzo de 1993) es un tenista profesional francés. En febrero de 2022 ocupa el puesto 293 del ranking ATP.[1]