| UTR Pro Tennis Series Miami | 2021/11/01 18:00 | Matthew Foster-Estwick v Suraj Prabodh | 6-2,4-6,2-6 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Matthew Foster-Estwick v Christian Lakoseljac | 4-6,6-7 |
| ITF M15 Naples | 2021/10/12 13:30 | Johannes Ingildsen v Matthew Foster-Estwick | 7-5,6-3 |
| ITF M15 Naples | 2021/10/06 18:50 | Juncheng Shang v Matthew Foster-Estwick | 6-1,6-3 |
| ITF M15 Naples | 2021/10/05 13:30 | Matthew Beecher v Matthew Foster-Estwick | 6-7,4-6 |
| UTR Pro Tennis Series Florida | 2021/09/09 12:00 | Matthew Foster-Estwick v Rubin Statham | 2-6,0-6 |
| UTR Pro Tennis Series Florida | 2021/09/08 16:30 | Matthew Foster-Estwick v Rafael Lima Wagner | 7-5,6-6 |
| UTR Pro Tennis Series Florida | 2021/09/07 13:30 | Matthew Foster-Estwick v Shu Matsuoka | 4-6,6-0,6-6 |