Stadium: Court 15 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Fayetteville | 2020/11/03 20:50 | Sam Riffice v Roberto Quiroz | 2-6,6-7 |
| UTR Pro Tennis Series Florida | 2020/07/30 12:00 | Cleeve Harper v Sam Riffice | 2-6,4-6 |
| UTR Pro Tennis Series Florida | 2020/07/29 12:00 | Sam Riffice v Egor Gerasimov | 3-6,4-6 |
| UTR Pro Tennis Series Florida | 2020/07/28 12:00 | Jordi Arconada v Sam Riffice | 3-6,3-6 |
| UTR Pro Tennis Series Florida | 2020/07/24 13:30 | Sam Riffice v Liam Draxl | 3-6,6-7 |
| UTR Pro Tennis Series Florida | 2020/07/23 12:00 | Sam Riffice v Ronald Hohmann | 6-3,6-3 |
| UTR Pro Tennis Series Florida | 2020/07/22 13:30 | Dmitry Popko v Sam Riffice | 6-4,1-6,10-8 |
| Matchplay 120 | 2020/07/21 20:00 | Shintaro Mochizuki v Sam Riffice | 3-6,6-3,0-0 |
| Challenger Nur-Sultan | 2021/02/25 07:10 | Jurij Rodionov v Tatsuma Ito | 6-3,6-2 |
| Challenger Nur-Sultan | 2021/02/24 05:25 | Tatsuma Ito v Vladyslav Manafov | 6-4,6-4 |
| Challenger Istanbul | 2021/01/17 08:50 | Ernesto Escobedo v Tatsuma Ito | 6-1,4-6,6-4 |
| Australian Open | 2021/01/11 10:20 | Tatsuma Ito v Yannick Maden | 4-6,2-6 |
| Challenger Split | 2020/09/29 11:20 | Viktor Troicki v Tatsuma Ito | 6-2,6-4 |
| French Open | 2020/09/21 15:10 | Tatsuma Ito v Nikola Milojevic | 6-4,0-6,1-6 |
| Challenger Calgary | 2020/02/26 01:25 | Yusuke Takahashi v Tatsuma Ito | 6-3,6-3 |
| Challenger Launceston | 2020/02/04 01:00 | Matias Franco Descotte v Tatsuma Ito | 7-6,6-4 |