Stadium: CEE Logistic Round: 27 Ground: Clay
| ITF M15 Prijedor | 2023/05/19 11:20 | Petr Brunclik v Tim Ruehl | 6-7,6-4,10-7 |
| ITF M15 Prijedor | 2023/05/19 07:00 | Tim Ruehl v Stefan Kostic | 6-1,6-1 |
| ITF M15 Prijedor | 2023/05/17 14:00 | Corey Gaal v Tim Ruehl | 3-6,2-6 |
| ITF M15 Prijedor | 2023/05/15 09:00 | Tim Ruehl v Luka Miklavcic | 6-3,7-5 |
| ITF M15 Alaminos-Larnaca | 2023/05/01 06:00 | Jonas Trinker v Tim Ruehl | 7-6,3-6,10-8 |
| ITF M15 Alaminos-Larnaca | 2023/04/23 07:00 | Tim Ruehl v Christian Fellin | 6-7,4-6 |
| ITF M25 Fort Worth | 2019/10/20 15:00 | Jacob Fearnley v Tim Ruehl | 6-2,6-4 |
| ITF USA F33 | 2018/11/20 19:55 | Mark Whitehouse v Tim Ruehl | 6-2,6-3 |
| Challenger Ortisei | 2022/10/23 10:45 | Nicola Kuhn v Terence Atmane | 6-7,4-6 |
| Challenger Hamburg | 2022/10/19 12:15 | Nicola Kuhn v Jelle Sels | 6-4,4-6,1-6 |
| Challenger Nonthaburi | 2022/09/06 03:00 | Yuta Shimizu v Nicola Kuhn | 6-1,6-2 |
| Challenger Nonthaburi | 2022/08/25 06:00 | Nicola Kuhn v Valentin Vacherot | 5-7,3-6 |
| Challenger Nonthaburi | 2022/08/23 03:30 | Nicola Kuhn v Benjamin Lock | 7-5,6-3 |
| Challenger Liberec | 2022/08/02 12:40 | Jiri Lehecka v Nicola Kuhn | 6-2,6-1 |
| Challenger Segovia | 2022/07/27 16:00 | Hugo Grenier v Nicola Kuhn | 6-4,6-4 |
| Challenger Segovia | 2022/07/26 09:45 | Adrian Menendez-Maceiras v Nicola Kuhn | 2-6,4-6 |