| ITF M25 Edgbaston | 2024/10/13 09:00 | Tim Loosen v Ronald Hohmann | 6-7,4-6 |
| ITF M15 Eupen | 2024/08/04 08:00 | Tim Loosen v Pierre Antoine Tailleu | 6-7,3-6 |
| ITF M25 Manacor | 2023/01/23 13:00 | Tim Loosen v Daniil Sarksian | 1-6,4-6 |
| ITF M25 Manacor | 2023/01/15 12:30 | Svyatoslav Gulin v Tim Loosen | 6-1,6-3 |
| ITF M25 Manacor | 2023/01/09 13:00 | Nikolay Nedelchev v Tim Loosen | 6-0,6-3 |
| ITF M25 Madrid | 2022/11/27 13:00 | Areg Stepanian v Tim Loosen | 6-2,4-6,11-9 |
| ITF M25 Santa Margherita | 2022/10/03 11:00 | Tim Loosen v Alessandro Cortegiani | 5-7,6-4,7-10 |
| ITF M25 Santa Margherita | 2022/10/02 12:00 | Federico Marchetti v Tim Loosen | 3-6,6-7 |
| ITF M25 Kassel | 2025/07/08 08:30 | Iannis Miletich v Ruben Hartig | 6-3,6-1 |
| ITF M25 Varnamo | 2025/06/09 07:45 | Jan Simonsson v Ruben Hartig | 6-3,4-6,1-0 |
| UTR Pro Ahaus | 2025/06/07 07:00 | Ruben Hartig v Idriss Haddouch | 1-6,1-6 |
| UTR Pro Ahaus | 2025/06/06 07:00 | Ruben Hartig v Amadatus Admiraal | 6-4,3-6,1-6 |
| UTR Pro Ahaus | 2025/06/04 07:00 | Ruben Hartig v Younes Lalami Laaroussi | 1-6,2-6 |
| UTR Pro Ahaus | 2025/06/03 07:00 | Ruben Hartig v David Petrovic | 6-4,6-4 |
| UTR Pro Ahaus | 2025/06/02 12:10 | Twan Van Zijl v Ruben Hartig | 6-3,6-3 |
| ITF M15 Antalya | 2025/03/12 11:30 | Giuseppe La Vela v Ruben Hartig | 7-5,6-1 |