Stadium: Court 2 Round: 44 Ground: Clay
| ITF M15 Koszalin | 2023/09/06 09:25 | Jonas P Hartenstein v Maciej Rajski | 4-6,4-6 |
| ITF M15 Koszalin | 2024/06/10 12:00 | Maciej Rajski v Rocco Piatti | 7-5,6-1 |
| UTR Pro Athens | 2024/06/02 10:17 | Maciej Rajski v Idriss Haddouch | 6-3,6-1 |
| UTR Pro Athens | 2024/06/01 09:00 | Maciej Rajski v Roi Ginat | 2-6,6-2,6-1 |
| UTR Pro Athens | 2024/05/31 06:00 | Maciej Rajski v Roan Jones | 6-3,5-4 |
| UTR Pro Athens | 2024/05/30 09:00 | Maciej Rajski v Michael Minasyan | 6-3,6-3 |
| UTR Pro Athens | 2024/05/29 06:00 | Kaj Quirijns v Maciej Rajski | 0-6,7-6,3-6 |
| UTR Pro Athens | 2024/05/28 09:17 | Georgios Nouchakis v Maciej Rajski | 3-6,1-6 |
| UTR Pro Newport Beach | 2024/03/29 21:00 | Maciej Rajski v Tristan Stringer | 6-2,6-1 |
| ITF M15 Koszalin | 2024/06/10 14:00 | Kacper Szymkowiak v Jonas P Hartenstein | 7-5,5-7,9-11 |
| ITF M15 Orange Park | 2024/04/30 18:40 | Juan I Cabrera v Jonas P Hartenstein | 3-6,1-6 |
| ITF M25 Trnava | 2023/11/07 11:10 | Matvey Minin v Jonas P Hartenstein | 6-3,6-7,10-6 |
| ITF M25 Trnava | 2023/11/06 11:00 | Patrik Homola v Jonas P Hartenstein | 2-6,2-6 |
| ITF M25 Pardubice | 2023/09/20 12:45 | Jonas P Hartenstein v Maxime Chazal | 3-6,4-6 |
| ITF M25 Pardubice | 2023/09/19 08:00 | Jonas P Hartenstein v Roman Postolka | 4-6,4-6 |
| ITF M25 Pardubice | 2023/09/18 08:00 | Jonas P Hartenstein v Matej Rudolf | 6-1,6-0 |
| ITF M15 Koszalin | 2023/09/06 09:25 | Jonas P Hartenstein v Maciej Rajski | 4-6,4-6 |