Stadium: Stadium Round: 54 Ground: Clay
| ITF M25 Vero Beach | 2021/10/18 16:00 | Louroi Martinez v Cooper Williams | 6-7,6-3,6-10 |
| ITF M25 - Weston | 2021/06/29 23:30 | Alan Kohen v Cooper Williams | 2-6,6-4,10-6 |
| ITF M25 - Weston | 2021/06/28 19:00 | Cooper Williams v Michael Zhu | 6-2,7-6 |
| UTR Pro Tennis Series - Florida | 2021/06/13 14:15 | Cooper Williams v Huzaifa Abdul Rehman | 7-6,3-6,6-7 |
| UTR Pro Tennis Series - Florida | 2021/06/10 13:00 | Cooper Williams v Andres Martin | 3-6,1-6 |
| UTR Pro Tennis Series - Florida | 2021/06/09 16:00 | Cooper Williams v Thomas Brown | 0-0 |
| UTR Pro Tennis Series - Florida | 2021/06/08 17:30 | Cooper Williams v Ivan Yatsuk | 3-6,5-6 |
| UTR Pro Tennis Series - Florida | 2021/06/07 13:00 | Cooper Williams v Cleeve Harper | 2-6,4-5 |
| ITF M25 Vero Beach | 2021/10/18 16:00 | Matej Panik v Ronald Hohmann | 4-6,1-6 |
| UTR Pro Tennis Series - Dallas | 2021/08/07 15:00 | Ronald Hohmann v Stefan Latinov | 2-6,6-2,1-6 |
| UTR Pro Tennis Series - Dallas | 2021/08/06 17:30 | Ronald Hohmann v William Grant | 6-3,3-6,4-5 |
| UTR Pro Tennis Series - Dallas | 2021/08/04 13:00 | Ronald Hohmann v Kenner Taylor | 6-3,6-4 |
| UTR Pro Tennis Series - Dallas | 2021/08/03 16:00 | Ronald Hohmann v Evin McDonald | 4-6,6-4,6-5 |
| UTR Pro Tennis Series - Dallas | 2021/08/02 17:00 | Wyatt DeMulling v Ronald Hohmann | 6-7,3-6 |
| ITF M25 - Weston | 2021/06/29 22:30 | Ben Shelton v Ronald Hohmann | 6-3,6-2 |
| ITF M25 - Weston | 2021/06/28 19:00 | Ronald Hohmann v Alejandro H Franco | 6-2,6-4 |