Stadium: Court 10 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Bielsko Biala | 2023/08/16 09:00 | Ondrej Horak v Olaf Pieczkowski | 6-3,1-6,0-6 |
| ITF M25 Bielsko Biala | 2023/08/14 14:00 | Ondrej Horak v Marcel Politowicz | 6-1,6-4 |
| ITF M25 Bielsko Biala | 2023/08/14 09:00 | Ondrej Horak v Samuel Paulovcak | 6-3,6-3 |
| ITF M25 Kramsach | 2023/07/23 07:00 | Serafin Zund v Ondrej Horak | 6-2,1-6,10-8 |
| ITF M25 Telfs | 2023/07/20 09:45 | Peter Heller v Ondrej Horak | 6-1,6-1 |
| ITF M25 Telfs | 2023/07/19 11:55 | Matthias Ujvary v Ondrej Horak | 2-6,4-6 |
| ITF M25 Telfs | 2023/07/17 10:00 | Ondrej Horak v Maurus Malgiaritta | 6-3,6-4 |
| ITF M25 Telfs | 2023/07/16 13:00 | Ondrej Horak v Elias Julian Werner | 6-4,7-5 |
| ITF M25 Santo Domingo Qual | 2022/06/12 15:00 | Jacob Bicknell v Yerry Zorrilla | 7-6,6-4 |
| ITF M25 Santo Domingo | 2022/06/05 13:15 | Ignacio B Alia v Yerry Zorrilla | 7-5,6-2 |