Stadium: Court 3 Round: 26 Ground: Clay
| ITF M15 Bratislava | 2021/08/25 10:05 | Eero Vasa v Lukas H Lilleengen | 5-7,7-6,5-7 |
| ITF M15 Bratislava | 2021/08/24 08:00 | Antonin Stepanek v Lukas H Lilleengen | 6-0,4-6,3-10 |
| ITF M15 Bratislava | 2021/08/23 09:00 | Patrik Jancovic v Lukas H Lilleengen | 0-6,2-6 |
| ITF M15 Bratislava | 2021/08/17 08:00 | Zsombor Velcz v Lukas H Lilleengen | 7-5,6-2 |
| ITF M15 Bratislava | 2021/08/16 12:00 | Isa Mammetgulyyev v Lukas H Lilleengen | 3-6,1-6 |
| ITF M15 Frederiksberg | 2021/08/01 08:00 | Lukas H Lilleengen v Facundo Yunis | 6-3,1-6,5-10 |
| ITF M15 Vejle | 2021/07/25 07:00 | Lukas H Lilleengen v Carl Emil Overbeck | 2-6,6-4,7-10 |
| ITF M15 Perugia | 2021/07/18 12:45 | Lukas H Lilleengen v Mattia Frinzi | 3-6,3-6 |
| ITF M15 Bratislava | 2021/08/25 08:00 | Mikalai Haliak v Pavel Nejedly | 6-1,3-6,1-6 |
| ITF M25 Prostějov | 2021/08/17 11:50 | Pavel Nejedly v Aldin Setkic | 0-6,2-6 |
| ITF M25 Kottingbrunn | 2021/07/23 11:00 | Pavel Nejedly v Zsombor Piros | 4-6,7-6,3-6 |
| ITF M25 Kottingbrunn | 2021/07/22 10:10 | Pavel Nejedly v Martin Krumich | 6-3,4-6,6-2 |
| ITF M25 Kottingbrunn | 2021/07/20 11:10 | Pavel Nejedly v Philip Bachmaier | 6-4,7-6 |
| ITF M25 Telfs | 2021/07/14 16:00 | Lukas Neumayer v Pavel Nejedly | 2-6,6-4,6-1 |
| ITF M25 Velenje | 2021/07/08 09:25 | Cristian Rodriguez v Pavel Nejedly | 6-3,6-3 |
| ITF M25 Velenje | 2021/07/07 12:25 | Pavel Nejedly v Alessandro Bellifemine | 6-3,7-5 |