Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Huy | 2023/08/20 09:30 | Jamie Krattiger v Nico Jaeger | 6-3,6-3 |
| ITF M15 Targu Jiu | 2023/08/13 09:00 | Enrique Bogo v Jamie Krattiger | 6-2,6-3 |
| ITF M25 Porto | 2023/07/23 12:00 | Francisco Oliveira v Jamie Krattiger | 6-2,6-7,10-8 |
| ITF M25 Roda de Bara | 2023/07/09 09:00 | Jamie Krattiger v Alberto Odiseo Alvarado Berrospi | 4-6,2-6 |
| ITF M25 Gurb | 2023/05/15 08:00 | Ignacio B Alia v Jamie Krattiger | 6-2,6-1 |
| ITF M25 Valldoreix | 2023/05/07 13:30 | Victorio Marquiselli v Jamie Krattiger | 6-4,6-3 |
| ITF M25 Sabadell | 2023/05/01 08:00 | Jamie Krattiger v Gianni Ross | 6-7,7-5,8-10 |
| ITF M25 Sabadell | 2023/04/30 07:00 | Nicolas Rafael Goldberg Alviani v Jamie Krattiger | 6-2,2-6,6-10 |
| ITF M15 Eupen | 2023/08/08 08:00 | Ruben Hartig v Felix Mischker | 6-4,6-7,7-10 |
| ITF M15 Eupen | 2023/08/07 07:00 | Ruben Hartig v Eliott Costa | 6-0,7-6 |
| ITF M15 Eindhoven | 2023/07/30 10:30 | Ruben Hartig v Christian Lerby | 6-4,1-6,11-13 |
| ITF M25 Telfs | 2023/07/16 10:30 | Ruben Hartig v Serafin Zund | 4-6,6-3,7-10 |
| ITF M25 Esch/Alzette | 2023/07/10 14:00 | Stijn Slump v Ruben Hartig | 6-2,6-4 |
| ITF M25 Esch/Alzette | 2023/07/10 08:45 | Ruben Hartig v Victor Bini | 3-6,6-2,10-8 |
| ITF M25 Esch/Alzette | 2023/07/09 09:25 | Can Ayral v Ruben Hartig | 5-7,3-6 |
| ITF M25 Marburg | 2023/07/04 09:25 | Philipp Pavlenko v Ruben Hartig | 6-4,3-6,10-3 |