Stadium: Center Court Round: 28 Ground: Clay
| ITF M15 Duffel | 2023/06/16 11:00 | Ryan Nijboer v John Sperle | 6-4,4-6,6-3 |
| ITF M15 Duffel | 2023/06/15 10:00 | Ryan Nijboer v Andrea Gola | 2-6,6-1,6-3 |
| ITF M15 Duffel | 2023/06/14 09:50 | Ryan Nijboer v Niklas Schell | 6-7,6-2,6-4 |
| ITF M25 La Nucia | 2023/06/01 13:00 | Ryan Nijboer v Yshai Oliel | 2-6,1-6 |
| ITF M25 La Nucia | 2023/06/01 07:00 | Ryan Nijboer v Jaime Caldes | 6-2,6-7,6-1 |
| ITF M25 La Nucia | 2023/05/31 09:35 | Ryan Nijboer v Noah Regas | 6-2,6-0 |
| ITF M25 La Nucia | 2023/05/30 08:00 | Ryan Nijboer v Alberto A Fernandez | 6-0,6-1 |
| ITF M15 Bucharest | 2023/05/26 10:10 | Petr Nesterov v Ryan Nijboer | 7-5,6-2 |
| ITF M15 Duffel | 2023/06/16 13:35 | Jeremy Jahn v Tim Handel | 7-6,6-4 |
| ITF M15 Duffel | 2023/06/15 10:00 | Jeremy Jahn v Sander Jong | 7-6,6-4 |
| ITF M15 Duffel | 2023/06/13 12:00 | Jeremy Jahn v Adrian Oetzbach | 6-2,6-1 |
| ITF M25 Skopje | 2023/06/07 09:00 | Miljan Zekic v Jeremy Jahn | 1-6,6-1,6-2 |
| ITF M25 Prague | 2023/05/17 10:50 | Jeremy Jahn v Khumoyun Sultanov | 3-6,3-6 |
| ITF M15 Antalya | 2023/05/05 08:00 | Jeremy Jahn v Yshai Oliel | 4-6,4-6 |
| ITF M15 Antalya | 2023/05/03 07:30 | Jeremy Jahn v Calin Manda | 6-1,4-6,7-5 |
| ITF M15 Meerbusch | 2023/04/26 16:10 | Jeremy Jahn v Deney Wassermann | 6-7,6-7 |