Stadium: Stadium Round: 25 Ground: Hardcourt outdoor
| ITF - M25 Santo Domingo | 2021/11/30 13:00 | Matt Kuhar v Matthew Foster-Estwick | 6-3,6-2 |
| ITF - M15 Guatemala | 2021/11/22 16:00 | Matthew Foster-Estwick v Jeffrey Hsu | 6-4,4-6,4-10 |
| ITF - M15 East Lansing | 2021/11/15 18:00 | Adit Sinha v Matthew Foster-Estwick | 6-1,6-1 |
| UTR Pro Tennis Series - Miami | 2021/11/07 13:00 | Matthew Foster-Estwick v Tyler Bowers | 1-6,0-4 |
| UTR Pro Tennis Series - Miami | 2021/11/04 19:30 | Elio Jose Ribeiro Lago v Matthew Foster-Estwick | 7-5,5-2 |
| UTR Pro Tennis Series - Miami | 2021/11/04 15:30 | Martim L Prata v Matthew Foster-Estwick | 6-1,6-4 |
| UTR Pro Tennis Series - Miami | 2021/11/02 15:30 | Azariah Rusher v Matthew Foster-Estwick | 6-4,5-2 |
| UTR Pro Tennis Series - Miami | 2021/11/01 18:00 | Matthew Foster-Estwick v Suraj Prabodh | 6-2,4-6,2-6 |
| ITF - M15 Heraklion | 2021/11/18 08:55 | Ryan James Storrie v Alexis Musialek | 6-3,5-7,6-4 |
| ITF - M15 Heraklion | 2021/11/12 08:00 | Francesco Maestrelli v Alexis Musialek | 7-6,6-2 |
| ITF - M15 Girona | 2021/10/19 09:00 | Diego A B Sanchez v Alexis Musialek | 6-1,6-3 |
| ITF - M15 Platja d'Aro | 2021/10/15 12:10 | Alexis Musialek v Carlos Sanchez Jover | 3-6,1-6 |
| ITF - M15 Platja d'Aro | 2021/10/14 09:00 | Lorenzo Joaquin Rodriguez v Alexis Musialek | 2-6,5-7 |
| ITF - M15 Platja d'Aro | 2021/10/13 08:30 | Matvey Minin v Alexis Musialek | 2-6,2-6 |
| ITF - M15 Platja d'Aro | 2021/10/06 08:25 | Guy Den Heijer v Alexis Musialek | 5-7,6-4,6-1 |
| ITF - M15 Ulcinj | 2021/09/24 09:00 | Samuel Vincent Ruggeri v Alexis Musialek | 7-6,6-1 |