| Challenger Columbus | 2021/09/20 15:20 | Song, Evan v King, Evan | 4-6,3-6 |
| Challenger Columbus | 2021/09/19 20:15 | Duckhee Lee v Song, Evan | 3-6,6-7 |
| Challenger Cary | 2021/09/13 15:00 | Shintaro Mochizuki v Song, Evan | 6-3,7-6 |
| UTR Pro Tennis Series Nevada | 2021/07/04 15:00 | Barrientos, Nicolas v Song, Evan | 1-5 |
| UTR Pro Tennis Series Nevada | 2021/07/03 15:00 | Frye, Bradley v Song, Evan | 2-6,1-5 |
| UTR Pro Tennis Series Nevada | 2021/07/02 16:30 | Song, Evan v Alejandro Quiles | 7-5,5-1 |
| UTR Pro Tennis Series Nevada | 2021/06/30 15:00 | Song, Evan v Joshua Charlton | 6-4,5-2 |
| UTR Pro Tennis Series Nevada | 2021/06/29 16:30 | Song, Evan v Kiger, Mac | 6-1,5-2 |
| UTR Pro Tennis Series Portoroz | 2021/08/27 13:30 | Giacomo Revelli v Gal Emersic Potocnik | 6-1,6-1 |
| UTR Pro Tennis Series Portoroz | 2021/08/26 10:00 | Giacomo Revelli v Dahiya, Paras | 6-4,6-7,6-3 |
| UTR Pro Tennis Series Portoroz | 2021/08/26 07:00 | Rumler, Robert v Giacomo Revelli | 3-6,4-6 |
| ITF M15 Warmbad-Villach | 2021/08/18 13:05 | Giacomo Revelli v Prechtel, Sebastian | 3-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 12:00 | Leonardo Taddia v Giacomo Revelli | 4-6,1-6 |
| ITF M15 Warmbad-Villach | 2021/08/17 07:30 | de Rosa, Marco v Giacomo Revelli | 7-6,4-6,1-10 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/05 07:00 | Pedro Sakamoto v Giacomo Revelli | 5-7,6-2,6-3 |
| ITF M25 Grodzisk Mazowiecki | 2021/08/02 14:30 | Bojarski, Alan v Giacomo Revelli | 3-6,2-6 |