Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| ITF - M25 Idanha-A-Nova | 2021/07/14 11:50 | Mehluli D A Sibanda v Garrett Johns | 1-6,5-7 |
| ITF - M25 Idanha-A-Nova | 2021/07/13 10:00 | Garrett Johns v Francisco Rocha | 6-4,4-6,10-8 |
| ITF - M25 Idanha-A-Nova | 2021/07/12 15:30 | Garrett Johns v Victor Bini | 6-4,6-1 |
| ITF - M25 Idanha-A-Nova | 2021/07/11 15:30 | Garrett Johns v Ying Hou | 6-2,6-1 |
| ITF - M25 Weston | 2021/06/29 20:45 | Garrett Johns v Michael Zheng | 4-6,6-3,8-10 |
| ITF - M25 Tulsa | 2021/06/14 18:00 | Nicaise Muamba v Garrett Johns | 6-4,6-4 |
| ITF - M25 Pensacola | 2021/05/18 14:25 | Garrett Johns v Dragos Constantin Ignat | 6-7,1-6 |
| ITF - M25 Pensacola | 2021/05/17 15:30 | Garrett Johns v Harry Thursfield | 4-6,6-4,10-4 |
| ITF - M25 Idanha-A-Nova | 2021/07/13 12:15 | Thomas Fancutt v Anton Matusevich | 4-6,6-7 |
| Wimbledon | 2021/06/24 12:05 | Bernabe Zapata Miralles v Anton Matusevich | 6-2,3-6,7-6,6-7,6-3 |
| Wimbledon | 2021/06/23 12:00 | Anton Matusevich v Carlos Taberner | 6-4,6-1 |
| Wimbledon | 2021/06/22 10:00 | Anton Matusevich v William Jansen | 4-6,6-0,6-4 |
| Challenger - Nottingham | 2021/06/19 11:30 | Mackenzie McDonald v Anton Matusevich | 6-2,6-3 |
| Challenger - Nottingham | 2021/06/16 12:35 | Thomas Fabbiano v Anton Matusevich | 6-7,4-6 |
| Challenger - Nottingham | 2021/06/14 15:30 | Anton Matusevich v Mikael Ymer | 6-3,7-5 |
| Challenger - Nottingham | 2021/06/06 16:45 | Ramkumar Ramanathan v Anton Matusevich | 2-6,7-6,7-6 |