Stadium: Court 3 Round: 54 Ground: Carpet indoor
| ITF - Antalya M15 | 2021/10/25 07:00 | Mark Havlicek v Aliaksandr Bulitski | 3-6,2-6 |
| ITF - Antalya M15 | 2021/10/24 07:00 | Mert Ramadan v Mark Havlicek | 5-7,5-7 |
| ITF - Antalya M15 | 2021/10/17 07:00 | Dominik Recek v Mark Havlicek | 6-2,6-3 |
| ITF - Antalya M15 | 2021/10/12 07:00 | Federico Campana v Mark Havlicek | 6-4,6-3 |
| ITF - Antalya M15 | 2021/10/11 11:45 | Juan Estevez v Mark Havlicek | 6-7,0-6 |
| ITF - Antalya M15 | 2021/10/10 07:00 | Leyton Rivera v Mark Havlicek | 2-6,2-6 |
| ITF - Praga M25 | 2021/10/03 11:30 | Lukas Velik v Mark Havlicek | 4-6,6-3,10-7 |
| ITF - Budapeszt M25 | 2021/09/29 07:25 | Mark Havlicek v Milos Karol | 2-6,7-6,4-6 |
| ITF - Ricany M25 | 2021/08/30 08:00 | Ondrej Valek v Noel Larwig | 4-6,2-6 |
| ITF - Prostejov M25 | 2021/08/16 09:50 | Nico Hornitschek v Ondrej Valek | 6-1,6-2 |
| ITF - Prostejov M25 | 2021/08/15 09:00 | Vojtech Vlkovsky v Ondrej Valek | 6-4,4-6,9-11 |
| ITF - Kottingbrunn M25 | 2021/07/18 07:30 | Peter Goldsteiner v Ondrej Valek | 6-2,6-2 |
| ITF - Poprad M15 | 2021/07/04 08:00 | Samuel Puskar v Ondrej Valek | 7-5,6-1 |
| ITF - Most M25 | 2021/05/25 08:00 | Ondrej Valek v Sean Cuenin | 2-6,2-6 |
| ITF - Most M25 | 2021/05/24 08:00 | Ondrej Valek v Alexander Wolfschmidt | 6-2,6-3 |
| ITF - Most M25 | 2021/05/23 14:00 | George Loffhagen v Ondrej Valek | 4-6,1-6 |