Stadium: Court 1 Round: 54 Ground: Hardcourt indoor
| ITF M15 Ithaca | 2021/10/06 16:35 | Nico Mostardi v Charles Broom | 1-6,6-7 |
| UTR Pro Tennis Series Dallas | 2021/08/08 15:30 | Evan Zhu v Nico Mostardi | 6-4,5-0 |
| UTR Pro Tennis Series Dallas | 2021/08/07 13:00 | Wyatt DeMulling v Nico Mostardi | 5-7,5-6 |
| UTR Pro Tennis Series Dallas | 2021/08/05 14:30 | Nico Mostardi v Nicolas Acevedo | 2-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/08/04 14:30 | Nico Mostardi v Top Nidunjianzan | 7-6,3-6,6-1 |
| UTR Pro Tennis Series Dallas | 2021/08/03 14:30 | Nico Mostardi v Stefan Latinov | 6-2,3-6,1-6 |
| UTR Pro Tennis Series Dallas | 2021/08/02 15:00 | Nico Mostardi v Kyle Frankel | 4-6,4-5 |
| UTR Pro Tennis Series Atlanta | 2021/07/07 15:30 | Nico Mostardi v Conner Huertas Del Pino | 6-4,3-6,0-5 |