| UTR Pro Tennis Series California | 2021/12/31 22:15 | Ethan Schiffman v Logan Smith | 2-6,6-7 |
| UTR Pro Tennis Series California | 2021/12/28 20:00 | Ethan Schiffman v Learner Tien | 4-6,3-5 |
| UTR Pro Tennis Series California | 2021/12/26 23:00 | Maxwell McKennon v Ethan Schiffman | 6-1,6-4 |
| UTR Pro Tennis Series California | 2021/12/05 16:00 | Ethan Schiffman v Arthur Bellegy | 4-6,5-6 |
| UTR Pro Tennis Series California | 2021/12/04 16:00 | Ethan Schiffman v Matthew Sah | 6-2,5-4 |
| UTR Pro Tennis Series California | 2021/12/02 20:00 | Ethan Schiffman v Ryan Seggerman | 2-6,2-6 |
| UTR Pro Tennis Series California | 2021/12/01 16:00 | Ethan Schiffman v Dane Esses | 2-6,6-6 |
| UTR Pro Tennis Series California | 2021/11/30 18:53 | Ethan Schiffman v Riccardo Roberto | 6-3,5-4 |