Stadium: Court 2 Round: 25 Ground: Hardcourt outdoor
| ITF M25 Rome | 2023/05/28 10:00 | Marcel Kamrowski v Giannicola Misasi | 6-7,6-3,4-10 |
| ITF M15 Santo Domingo | 2022/11/23 13:30 | Marcel Kamrowski v Roberto Cid Subervi | 6-7,2-6 |
| ITF M15 Santo Domingo | 2022/11/22 13:30 | Julian Alonso v Marcel Kamrowski | 0-6,7-6,7-10 |
| ITF M15 Chiang Rai | 2022/04/19 02:55 | Marcel Kamrowski v Alexander Crnokrak | 1-6,7-5,8-10 |
| ITF M15 Chiang Rai | 2022/04/18 04:55 | Marcel Kamrowski v Nicholas Jovanovski | 7-6,6-3 |
| ITF M15 Chiang Rai Qual | 2022/04/17 07:55 | Masamichi Imamura v Marcel Kamrowski | 3-6,4-6 |
| ITF M15 Chiang Rai Qual | 2022/04/10 09:50 | Marcel Kamrowski v Chukang Wang | 6-7,4-6 |
| ITF M15 Chiang Rai | 2022/04/05 02:00 | Marcel Kamrowski v Geun Jun Kim | 7-5,2-6,1-10 |
| ITF M25 Poprad | 2023/06/19 08:00 | Ondrej Horak v Tomas Vaise | 4-6,4-6 |
| ITF M25 Poprad | 2023/06/18 08:00 | Ondrej Horak v Tomas Krcma | 6-2,6-2 |
| ITF M25 Jablonec Nad Nisou | 2023/05/31 13:50 | Evgeny Karlovskiy v Ondrej Horak | 7-6,6-2 |
| ITF M25 Jablonec Nad Nisou | 2023/05/30 07:55 | Thijmen Loof v Ondrej Horak | 6-7,3-6 |
| ITF M25 Jablonec Nad Nisou | 2023/05/28 09:00 | Vojtech Mares v Ondrej Horak | 5-7,0-6 |
| ITF M25 Most | 2023/05/22 09:00 | Victor Sklenka v Ondrej Horak | 2-6,7-5,10-4 |
| ITF M25 Most | 2023/05/21 10:30 | Nico Jaeger v Ondrej Horak | 5-7,4-6 |
| Czechia Extraliga | 2022/12/13 09:00 | Ondrej Horak v Marek Jaloviec | 3-6,4-5 |