Stadium: Court 3 Round: 54 Ground: Carpet indoor
| ITF M25 Bourg-en-Bresse | 2021/06/28 09:00 | Yann Marti v Maik Steiner | 6-3,2-6,9-11 |
| ITF M25 Bourg-en-Bresse | 2021/06/27 09:20 | Yann Marti v Florent Casays | 6-3,6-2 |
| ITF M15 Sibenik | 2021/05/20 10:20 | Yann Marti v Fabian Marozsan | 1-6,3-6 |
| ITF M15 Sibenik | 2021/05/19 14:50 | Yann Marti v Taiyo Yamanaka | 6-3,6-4 |
| ITF M15 Sibenik | 2021/05/18 09:10 | Yan Sabanin v Yann Marti | 2-6,2-6 |
| ITF M15 Sibenik | 2021/05/17 13:15 | Bjorn Nareyka v Yann Marti | 2-6,3-6 |
| ITF M15 Troisdorf | 2021/05/09 13:00 | Yann Marti v Marvin Greven | 6-3,6-1 |
| ITF M25 Biel | 2021/03/30 11:55 | Otto Virtanen v Yann Marti | 6-3,6-3 |
| ITF M25 Eupen | 2021/09/06 11:30 | Tom Clavel v Rayane Oumaouche | 2-6,2-6 |
| ITF M25 Eupen | 2021/09/05 10:30 | Tom Clavel v Martin Benes | 6-7,7-6,10-7 |
| ITF M15 Huy | 2021/08/22 17:10 | Tom Clavel v Maikel De Boes | 7-6,4-6,8-10 |
| ITF M25 Koksijde | 2021/08/16 09:40 | Loic Cloes v Tom Clavel | 6-4,6-4 |
| ITF M25 Koksijde | 2021/08/15 11:40 | Lennart Melzer v Tom Clavel | 3-6,6-4,8-10 |
| ITF M25 The Hague | 2021/06/27 08:00 | Tom Clavel v Michiel de Krom | 3-6,5-7 |
| ITF M15 Troisdorf | 2021/05/09 10:00 | Tom Clavel v Timo Stodder | 1-6,1-6 |
| ITF M15 Faro | 2020/03/01 11:30 | Blake Ellis v Tom Clavel | 6-0,6-1 |