| UTR Pro Tennis Series Atlanta | 2021/07/05 13:30 | Nico Mostardi v Tristan Schoolkate | 2-6,3-6 |
| UTR Pro Tennis Series Florida | 2021/01/13 14:00 | Nico Mostardi v Omar Maldonado | 4-6,4-6 |
| UTR Pro Tennis Series Florida | 2021/01/12 18:00 | Nico Mostardi v John Bernard | 6-3,2-6,6-3 |
| UTR Pro Tennis Series Florida | 2021/01/11 15:30 | Noah Rubin v Nico Mostardi | 6-2,6-4 |
| UTR Pro Tennis Series Florida | 2020/12/19 16:00 | Ivan Yatsuk v Nico Mostardi | 7-6,3-6,6-7 |
| UTR Pro Tennis Series Florida | 2020/12/18 16:15 | Tin Chen v Nico Mostardi | 5-7,0-0 |
| UTR Pro Tennis Series Florida | 2020/12/16 16:00 | Nico Mostardi v Evan Bynoe | 6-1,6-2 |
| UTR Pro Tennis Series Florida | 2020/12/15 17:00 | Nico Mostardi v Nick Chappell | 7-6,0-6,5-7 |
| UTR Pro Tennis Series Atlanta | 2021/07/05 15:00 | Conner Huertas Del Pino v Nicholas McKinney | 6-2,5-2 |
| UTR Pro Tennis Series Atlanta | 2021/07/04 15:00 | Nicholas McKinney v Agustin Tamagnone | 6-2,5-7,6-0 |