Stadium: Court 2 Round: 25 Ground: Carpet indoor
| ITF M15 - Parnu | 2021/10/27 12:05 | Oscar Moraing v Matthew William Donald | 7-5,6-1 |
| ITF M25 - Prag | 2021/10/06 12:20 | Tobias Simon v Matthew William Donald | 6-3,4-6,6-3 |
| ITF M25 - Pardubice | 2021/09/23 11:15 | Matthew William Donald v Luca Nardi | 4-6,3-6 |
| ITF M25 - Pardubice | 2021/09/22 09:00 | Tomas Lanik v Matthew William Donald | 2-6,2-6 |
| ITF M25 - Prostejov | 2021/08/16 11:15 | Zsombor Piros v Matthew William Donald | 6-3,6-4 |
| Challenger Liberec | 2021/08/01 14:00 | Matthew William Donald v Rudolf Molleker | 6-4,5-7,5-7 |
| ITF M25 - Jablonec Nad Nisou | 2021/05/19 15:15 | Matthew William Donald v Manuel Guinard | 1-6,5-7 |
| ITF M25 - Prag | 2021/05/09 12:30 | Matthew William Donald v Lenny Hampel | 2-6,6-4,8-10 |
| Challenger Eckental | 2021/11/04 12:45 | Tomas Machac v Henri Squire | 6-2,7-6 |
| Challenger Eckental | 2021/11/02 13:15 | Henri Squire v Alexander Erler | 7-6,2-6,7-6 |
| Challenger Eckental | 2021/11/01 10:00 | Alexander Erler v Henri Squire | 4-6,2-6 |
| Challenger Eckental | 2021/10/31 09:00 | Henri Squire v Shintaro Mochizuki | 6-4,6-2 |
| Challenger Ismaning | 2021/10/27 12:20 | Henri Squire v Ruben Bemelmans | 3-6,4-6 |
| ITF M25 - Hamburg | 2021/10/24 10:00 | Henri Squire v Jakub Paul | 4-6,2-6 |
| ITF M25 - Hamburg | 2021/10/23 10:00 | Henri Squire v Johannes Haerteis | 6-4,6-4 |
| ITF M25 - Hamburg | 2021/10/22 12:40 | Henri Squire v Lenny Hampel | 6-4,6-4 |