Ground: Hardcourt indoor
| ITF M15 Trier | 2025/08/14 12:30 | Pedro Sakamoto v Calvin Mueller | 6-0,6-4 |
| ITF M15 Trier | 2025/08/13 11:03 | Dimitris Sakellaridis v Calvin Mueller | 1-6,6-0,4-6 |
| UTR Pro Lincoln | 2025/03/01 19:05 | Calvin Mueller v Leonardo Lopez Linquet | 6-1,5-7,1-6 |
| UTR Pro Lincoln | 2025/02/28 22:05 | William Bartram v Calvin Mueller | 3-6,2-6 |
| UTR Pro Lincoln | 2025/02/27 23:10 | Adrian Treacy v Calvin Mueller | 2-6,2-6 |
| UTR Pro Lincoln | 2025/02/25 22:10 | Nicholas Herdoiza v Calvin Mueller | 4-6,5-7 |
| UTR Pro Lincoln | 2025/02/24 21:40 | Calvin Mueller v Colson Wells | 7-6,7-5 |
| ITF M15 Wetzlar | 2019/08/06 11:30 | Lucas Gerch v Calvin Mueller | 6-4,6-4 |
| ITF M15 Allershausen | 2025/08/26 09:00 | David Eichenseher v Juan Estevez | 3-6,2-6 |
| ITF M15 Slovenska Bistrica | 2025/08/06 13:55 | David Eichenseher v Vladan Tadic | 1-6,1-6 |
| ITF M15 Kamen | 2025/06/26 08:30 | Aleksandr Braynin v David Eichenseher | 6-0,6-2 |
| ITF M15 Kamen | 2025/06/24 09:30 | David Eichenseher v Sebastian Prechtel | 2-6,6-1,6-2 |
| ITF M15 Klagenfurt | 2025/06/03 07:30 | David Eichenseher v Damien Wenger | 4-6,2-6 |
| Challenger Chisinau | 2025/05/25 10:30 | Lilian Marmousez v David Eichenseher | 6-2,6-4 |
| UTR Pro Skopje | 2025/05/09 07:00 | Janos Fekete v David Eichenseher | 6-2,5-7,7-5 |
| UTR Pro Skopje | 2025/05/08 08:45 | Stefan Skobelev v David Eichenseher | 1-6,4-6 |