| Australian Open | 01/14 00:00 | 44 | [177] Lukas Rosol v Tristan Lamasine [214] | 6-4,6-3 | |
| Challenger Noumea | 01/10 04:05 | 27 | [215] Tristan Lamasine v Cedrik-Marcel Stebe [164] | 4-6,1-6 | |
| Challenger Noumea | 01/09 07:50 | 26 | [215] Tristan Lamasine v Ernests Gulbis [258] | 6-2,6-2 | |
| Challenger Noumea | 01/07 06:30 | 25 | [74] Federico Delbonis v Tristan Lamasine [215] | 3-6,4-6 | |
| Challenger Noumea | 01/06 06:55 | 24 | [215] Tristan Lamasine v Bernabe Zapata Miralles [196] | 4-6,6-4,7-5 | |
| Challenger Brest | 10/22 13:55 | 24 | [223] Tristan Lamasine v Viktor Durasovic [351] | 3-6,6-3,3-6 | |
| Challenger Ismaning | 10/16 13:00 | 25 | [219] Tristan Lamasine v Zdenek Kolar [277] | 4-6,5-7 | |
| Challenger Mouilleron le Captif | 10/08 19:30 | 25 | [127] Jannik Sinner v Tristan Lamasine [221] | 7-5,6-1 | |
| Challenger Mouilleron le Captif | 10/07 08:30 | 24 | [221] Tristan Lamasine v Adrian Menendez-Maceiras [213] | 6-3,6-2 | |
| Challenger Orleans | 09/28 13:50 | 28 | [89] Gregoire Barrere v Tristan Lamasine [263] | 6-4,6-3 | |
| Challenger Orleans | 09/27 13:00 | 27 | [263] Tristan Lamasine v Sergiy Stakhovsky [149] | 7-6,6-4 | |
| Challenger Orleans | 09/26 12:05 | 26 | [263] Tristan Lamasine v Norbert Gombos [119] | 6-7,6-3,6-2 | |
| Challenger Orleans | 09/25 11:50 | 25 | [86] Marius Copil v Tristan Lamasine [263] | 4-6,1-6 | |
| Challenger Orleans | 09/23 19:10 | 24 | [263] Tristan Lamasine v Tobias Kamke [201] | 6-3,6-1 | |
| ATP Metz | 09/15 12:40 | 64 | [257] Tristan Lamasine v Nicolas Mahut [172] | 4-6,5-7 | |
| Challenger Istanbul | 09/11 10:15 | 25 | [257] Tristan Lamasine v Matteo Viola [204] | 4-6,1-6 | |
| Challenger Istanbul | 09/09 08:25 | 24 | Holger Vitus Nodskov Rune v Tristan Lamasine | 1-6,3-6 | |
| Challenger Cassis | 09/04 14:05 | 25 | [248] Tristan Lamasine v Sergiy Stakhovsky [147] | 6-2,6-7,1-6 | |
| Challenger Cassis | 09/02 10:05 | 24 | [268] Uladzimir Ignatik v Tristan Lamasine [248] | 6-7,2-6 | |
| Challenger - Meerbusch | 08/14 13:05 | 25 | [249] Tristan Lamasine v Carlos Taberner [333] | 7-6,4-6,2-6 | |
| Challenger Sopot | 08/03 09:00 | 28 | [95] Stefano Travaglia v Tristan Lamasine [272] | 6-1,7-5 | |
| Challenger Sopot | 08/02 09:00 | 27 | [272] Tristan Lamasine v Alexey Vatutin [199] | 3-6,7-5,6-2 | |
| Challenger Sopot | 08/01 09:00 | 26 | [108] Mikael Ymer v Tristan Lamasine [272] | 6-2,4-6,1-6 | |
| Challenger Sopot | 07/30 13:55 | 25 | [330] Andrea Pellegrino v Tristan Lamasine [272] | 7-5,4-6,4-6 | |
| Challenger Praga | 07/23 11:15 | 25 | [251] Tristan Lamasine v Vaclav Safranek [364] | 6-7,1-6 | |
| Challenger Perugia | 07/10 19:25 | 25 | [106] Paolo Lorenzi v Tristan Lamasine [252] | 6-1,7-6 | |
| Challenger Perugia | 07/08 12:25 | 24 | [252] Tristan Lamasine v Santiago Giraldo [240] | 7-5,6-7,7-6 | |
| Challenger Milano | 06/26 08:00 | 25 | [295] Nino Serdarusic v Tristan Lamasine [254] | 6-2,6-2 | |
| Challenger Blois | 06/21 15:50 | 27 | [122] Pedro Sousa v Tristan Lamasine [254] | 6-1,6-1 | |
| Challenger Blois | 06/20 09:00 | 26 | [254] Tristan Lamasine v Federico Coria [179] | 6-4,7-6 |
Tristan Lamasine (Thiais, 5 marzo 1993) è un tennista francese. Ha ottenuto i migliori risultati in doppio, con diversi titoli nel circuito Challenger e l'85º posto del ranking ATP raggiunto nel giugno 2016. In singolare ha vinto un solo titolo Challenger ed è stato 181º della graduatoria mondiale nell'agosto 2015.