| UTR Pro Tennis Series California | 2021/11/07 19:00 | Ethan Schiffman v Roberto, Riccardo | 6-1,1-6,5-4 |
| UTR Pro Tennis Series California | 2021/11/29 21:30 | Ethan Schiffman v Giacomo Revelli | 1-6,2-6 |
| UTR Pro Tennis Series California | 2021/11/13 16:00 | Alex Kuperstein v Ethan Schiffman | 6-0,6-2 |
| UTR Pro Tennis Series California | 2021/11/11 19:00 | Arthur Bellegy v Ethan Schiffman | 1-6,4-6 |
| UTR Pro Tennis Series California | 2021/11/10 16:00 | Ethan Schiffman v William Peters | 4-6,2-6 |
| UTR Pro Tennis Series California | 2021/11/08 17:30 | Ethan Schiffman v Jean Baptiste Badon | 6-3,5-0 |
| UTR Pro Tennis Series California | 2021/11/07 19:00 | Ethan Schiffman v Roberto, Riccardo | 6-1,1-6,5-4 |
| UTR Pro Tennis Series California | 2021/09/02 16:30 | Ethan Schiffman v Jacob Bullard | 4-6,0-5 |
| UTR Pro Tennis Series California | 2021/09/01 21:00 | Smith, Errol v Ethan Schiffman | 4-6,6-1,5-4 |
| UTR Pro Tennis Series California | 2021/11/29 16:00 | Roberto, Riccardo v Ryan Seggerman | 3-6,6-4,5-4 |
| UTR Pro Tennis Series California | 2021/11/18 15:53 | Coste, Emmanuel v Roberto, Riccardo | 6-3,2-6,6-3 |
| UTR Pro Tennis Series California | 2021/11/17 23:20 | Roberto, Riccardo v Bruno Vietri | 1-6,4-6 |
| UTR Pro Tennis Series California | 2021/11/16 23:00 | Roberto, Riccardo v Maximilian Wild | 7-6,6-4 |
| UTR Pro Tennis Series California | 2021/11/15 22:00 | Rithvik Krishna v Roberto, Riccardo | 5-7,4-6 |
| UTR Pro Tennis Series California | 2021/11/08 19:00 | Roberto, Riccardo v William Peters | 0-6,0-1 |
| UTR Pro Tennis Series California | 2021/11/07 19:00 | Ethan Schiffman v Roberto, Riccardo | 6-1,1-6,5-4 |
| ITF USA F29 | 2018/10/31 16:35 | Roberto, Riccardo v Giles Hussey | 6-4,7-5 |