| UTR Pro Tennis Series California | 2021/05/22 15:00 | Eric Hadigian v Alex Kuperstein | 3-6,5-6 |
| ITF M25 Calabasas | 2021/10/27 19:20 | Eric Hadigian v Jaimee Floyd Angele | 2-6,3-6 |
| ITF M25 Calabasas | 2021/10/26 20:00 | Jordan Chiu v Eric Hadigian | 2-6,6-7 |
| ITF M25 Calabasas | 2021/10/26 17:00 | Jurence Zosimo Mendoza v Eric Hadigian | 4-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/08/07 16:00 | Eric Hadigian v Ryan Ybarra | 7-6,4-6,5-6 |
| UTR Pro Tennis Series Dallas | 2021/08/06 17:30 | Eric Hadigian v Kento Takeuchi | 3-6,2-5 |
| UTR Pro Tennis Series Dallas | 2021/08/04 16:00 | Eric Hadigian v Mac Kiger | 5-7,6-4,5-7 |
| UTR Pro Tennis Series Dallas | 2021/08/03 13:00 | Eric Hadigian v Elijah Poritzky | 6-0,6-2 |
| UTR Pro Tennis Series Dallas | 2021/08/02 19:00 | Lawrence Sciglitano v Eric Hadigian | 3-6,6-7 |
| UTR Pro Tennis Series Beograd | 2021/07/10 11:30 | Alex Kuperstein v Jean Thirouin | 4-6,3-6 |
| UTR Pro Tennis Series Beograd | 2021/07/09 11:30 | Dusan Milanovic v Alex Kuperstein | 6-2,6-2 |
| UTR Pro Tennis Series Beograd | 2021/07/08 12:00 | Aleksei Khomich v Alex Kuperstein | 6-2,6-0 |
| UTR Pro Tennis Series Beograd | 2021/07/06 09:00 | Giacomo Revelli v Alex Kuperstein | 6-7,6-4,0-6 |
| UTR Pro Tennis Series Beograd | 2021/07/05 10:30 | Alex Kuperstein v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series California | 2021/05/22 15:00 | Eric Hadigian v Alex Kuperstein | 3-6,5-6 |
| UTR Pro Tennis Series California | 2021/05/21 20:45 | Alexander Stater v Alex Kuperstein | 6-2,3-6,2-6 |
| UTR Pro Tennis Series California | 2021/05/20 15:00 | Joshua Ortlip v Alex Kuperstein | 6-1,5-3 |