Stadium: Court 9 Round: 25 Ground: Hardcourt indoor
| Challenger Yokohama | 2017/03/03 01:00 | Tatsuma Ito v Go Soeda | 6-4,6-1 |
| Challenger Porto | 2021/07/02 10:00 | Altug Celikbilek v Tatsuma Ito | 7-5,6-3 |
| Challenger Porto | 2021/06/29 10:00 | Tatsuma Ito v Luis Faria | 6-0,6-2 |
| Wimbledon | 2021/06/23 13:45 | Tatsuma Ito v Jason Jung | 2-6,1-6 |
| Wimbledon | 2021/06/22 11:35 | Elias Ymer v Tatsuma Ito | 3-6,4-6 |
| ATP Halle | 2021/06/12 09:00 | Ilya Ivashka v Tatsuma Ito | 6-1,6-3 |
| French Open | 2021/05/24 20:30 | Tatsuma Ito v Altug Celikbilek | 3-6,6-4,5-7 |
| Challenger Zagreb | 2021/05/10 10:25 | Ernests Gulbis v Tatsuma Ito | 7-6,1-6,6-4 |
| Challenger Zagreb | 2021/05/09 13:50 | Akira Santillan v Tatsuma Ito | 4-6,3-6 |
| Challenger Porto | 2021/06/28 14:50 | Sergiy Stakhovsky v Go Soeda | 2-6,6-2,7-6 |
| Wimbledon | 2021/06/22 14:50 | Sergiy Stakhovsky v Go Soeda | 6-3,7-6 |
| Challenger Nottingham | 2021/06/14 13:45 | Richard Gasquet v Go Soeda | 6-4,6-2 |
| French Open | 2021/05/24 11:35 | Bjorn Fratangelo v Go Soeda | 6-2,6-3 |
| ATP Lyon | 2021/05/16 08:00 | Go Soeda v Antoine Hoang | 1-6,1-6 |
| Challenger Zagreb | 2021/05/11 08:00 | Damir Dzumhur v Go Soeda | 6-4,6-3 |
| Challenger Biella | 2021/05/04 08:00 | Go Soeda v Maximilian Marterer | 2-6,1-6 |
| ATP Miami | 2021/03/22 20:40 | Go Soeda v Renzo Olivo | 3-6,4-6 |