| ITF M15 Guatemala | 2024/11/14 18:20 | Tristan McCormick v Ondrej Horak | 5-7,6-3,6-3 |
| ITF M15 Guatemala | 2024/11/12 16:40 | Ondrej Horak v Fred Simonsson | 6-4,7-5 |
| ITF M15 Guatemala | 2024/11/05 17:55 | Ondrej Horak v Kousuke Ogura | 4-6,6-7 |
| ITF M15 Bielsko Biala | 2024/08/14 09:30 | Ondrej Horak v Jan Hrazdil | 3-6,4-6 |
| ITF M15 Poprad | 2024/07/21 10:00 | Ondrej Horak v Kornel Halmos | 3-6,4-6 |
| ITF M25 Telfs | 2024/07/18 08:00 | Ondrej Horak v Daniel Dutra Da Silva | 4-6,1-6 |
| ITF M25 Telfs | 2024/07/17 07:55 | Ondrej Horak v Sebastian Sorger | 3-6,6-4,7-5 |
| ITF M25 Telfs | 2024/07/15 14:15 | Ondrej Horak v Piet Luis Pinter | 7-6,6-4 |