| UTR Pro Tennis Series Nevada | 2021/06/24 15:00 | Nicolas Barrientos v Kyle Kang | 6-1,5-4 |
| UTR Pro Tennis Series Nevada | 2021/06/23 16:30 | Nicholas Heng v Nicolas Barrientos | 3-6,2-6 |
| UTR Pro Tennis Series Nevada | 2021/06/22 18:00 | Alexander Stater v Nicolas Barrientos | 6-7,6-1,3-6 |
| ITF M25 Tulsa | 2021/06/19 13:55 | Nicolas Barrientos v Nicolas Kicker | 6-1,2-6,1-6 |
| ITF M25 Tulsa | 2021/06/18 16:00 | Nicolas Barrientos v Ezekiel Clark | 4-6,6-0,7-6 |
| ITF M25 Tulsa | 2021/06/17 16:20 | Hiroki Moriya v Nicolas Barrientos | 1-6,3-6 |
| ITF M25 Tulsa | 2021/06/16 23:30 | Trent Bryde v Nicolas Barrientos | 3-6,3-6 |
| ITF M25 Tulsa | 2021/06/15 14:00 | Gage Brymer v Nicolas Barrientos | 5-7,5-7 |
| UTR Pro Tennis Series Nevada | 2021/06/23 15:00 | Evan Song v Colton Smith | 6-1,6-3 |
| UTR Pro Tennis Series Nevada | 2021/06/22 15:00 | Evan Song v Murphy Cassone | 4-6,7-6,5-4 |
| UTR Pro Tennis Series Nevada | 2021/06/21 16:30 | Patrick Maloney v Evan Song | 6-1,6-5 |
| ITF M25 Wichita | 2021/06/09 14:55 | Matias Soto v Evan Song | 6-4,3-6,6-3 |
| ITF M25 Pensacola | 2021/05/19 17:20 | Shintaro Mochizuki v Evan Song | 6-4,6-4 |
| Challenger Cleveland | 2021/03/16 14:00 | Nicolas Mejia v Evan Song | 6-3,4-6,6-3 |
| Challenger Cleveland | 2021/03/15 17:05 | Dennis Novikov v Evan Song | 3-6,6-3,0-6 |
| Challenger Cleveland | 2021/03/14 21:50 | James Hopper v Evan Song | 1-6,7-6,1-6 |