Stadium: Court Le Liberte Round: 25 Ground: Hardcourt indoor
| Challenger Cassis | 2021/09/07 08:00 | Hugo Grenier v Go Soeda | 6-4,6-7,6-1 |
| Challenger Saint-Tropez | 2021/08/31 08:30 | Dragos Nicolae Madaras v Go Soeda | 2-6,6-4,6-3 |
| US Open | 2021/08/26 20:50 | Go Soeda v Antoine Hoang | 6-7,5-7 |
| US Open | 2021/08/25 19:35 | Go Soeda v Yannick Maden | 1-6,6-4,6-4 |
| ATP Washington | 2021/08/01 19:30 | Prajnesh Gunneswaran v Go Soeda | 6-3,6-1 |
| ATP Washington | 2021/07/31 16:00 | Go Soeda v Jason Jung | 6-4,6-7,6-4 |
| ATP Atlanta | 2021/07/24 19:40 | Matthew Ebden v Go Soeda | 6-3,7-6 |
| Challenger Porto | 2021/06/28 14:50 | Sergiy Stakhovsky v Go Soeda | 2-6,6-2,7-6 |
| Challenger Kyiv | 2021/09/08 10:35 | Tristan Lamasine v Franco Agamenone | 6-3,2-6,4-6 |
| Challenger Kyiv | 2021/09/06 09:35 | Tristan Lamasine v Kaichi Uchida | 7-6,6-2 |
| Challenger Como | 2021/08/31 08:00 | Juan Manuel Cerundolo v Tristan Lamasine | 6-4,7-6 |
| Challenger Warsaw | 2021/08/26 12:20 | Nino Serdarusic v Tristan Lamasine | 6-1,3-6,7-5 |
| Challenger Warsaw | 2021/08/25 10:00 | Jan Zielinski v Tristan Lamasine | 2-6,2-6 |
| Challenger Luedenscheid | 2021/08/18 10:45 | Mirza Basic v Tristan Lamasine | 7-6,6-2 |
| Challenger Luedenscheid | 2021/08/17 08:00 | Tristan Lamasine v Evgeny Karlovskiy | 6-3,6-3 |
| Challenger Poznan | 2021/07/27 11:45 | Jiri Lehecka v Tristan Lamasine | 6-3,7-5 |