Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2021/05/04 08:00 | Jacob Brumm v Coelho, Fabio | 2-6,7-6,5-10 |
| ITF - M15 Monastir | 2021/05/03 13:00 | Sungbeen Sim v Jacob Brumm | 2-6,4-6 |
| ITF - M15 Monastir | 2021/05/02 10:30 | Jacob Brumm v Stefano D'Agostino | 6-4,6-0 |
| ITF - M15 Monastir | 2021/04/26 09:00 | Jacob Brumm v Savva Polukhin | 6-4,1-6,4-10 |
| ITF - M15 Monastir | 2021/04/25 11:30 | Jacob Brumm v Brun, Thomas George | 6-1,6-1 |
| UTR Pro Tennis Series Atlanta | 2021/04/18 14:30 | Jacob Brumm v Nicholas Heng | 6-1,5-7,0-0 |
| UTR Pro Tennis Series Atlanta | 2021/04/17 17:00 | Jacob Brumm v Evan Bynoe | 6-2,6-3 |
| UTR Pro Tennis Series Atlanta | 2021/04/16 12:30 | Jacob Brumm v Murphy Cassone | 6-2,0-6,1-6 |
| ITF - M15 Sharm El Sheikh | 2021/02/07 11:00 | Miladinovic, Marko v Seita Watanabe | 6-3,6-3 |
| ITF - M15 Sharm El Sheikh | 2021/01/31 10:30 | Crepaldi, Erik v Seita Watanabe | 6-2,6-4 |
| ITF M15 Cairo | 2021/01/26 08:00 | Seita Watanabe v Kawakami, Rimpei | 3-6,2-6 |
| ITF M15 Cairo | 2021/01/24 07:30 | Seita Watanabe v Dennis Dragomirov | 6-0,6-1 |
| ITF M15 Cairo | 2021/01/18 08:00 | Vidal Azorin, Jose Fco v Seita Watanabe | 6-1,6-1 |
| ITF M15 Cairo | 2021/01/17 07:00 | Pavlos Parson v Seita Watanabe | 3-6,5-7 |
| ITF M15 Cairo | 2021/01/10 10:30 | Seita Watanabe v Brugnerotto, Marco | 3-6,5-7 |
| ITF - M15 Sharm El Sheikh | 2020/03/04 08:00 | Seita Watanabe v Jaroslav Pospisil | 3-6,1-6 |