Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ITF M15 Opava | 2021/11/17 10:40 | Matthew William Donald v Henri Squire | 2-6,6-7 |
| ITF M15 Parnu | 2021/10/27 12:05 | Oscar Moraing v Matthew William Donald | 7-5,6-1 |
| ITF M25 Prague | 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 M15 Ostrava | 2021/11/22 12:10 | Jakub Kroslak v Jiri Barnat | 2-6,5-7 |
| ITF M15 Ostrava | 2021/11/21 13:30 | Dominique Graf v Jiri Barnat | 4-6,6-4,5-10 |
| ITF M15 Opava | 2021/11/17 12:10 | Jiri Barnat v Filip Duda | 6-3,3-6,2-6 |
| ITF M15 Opava | 2021/11/15 12:05 | Peter Nad v Jiri Barnat | 2-6,6-7 |
| ITF M15 Opava | 2021/11/14 14:00 | Martin Benes v Jiri Barnat | 2-6,1-6 |
| ITF M25 Prague | 2021/10/03 08:00 | Tomas Lanik v Jiri Barnat | 7-6,6-3 |
| UTR Pro Tennis Series Ricany | 2021/09/16 08:30 | Jiri Barnat v Matyas Cerny | 6-7,0-0 |
| UTR Pro Tennis Series Ricany | 2021/09/15 10:30 | Antonin Bolardt v Jiri Barnat | 3-6,6-3,1-6 |