Ground: Hardcourt outdoor
| 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 M25 Sharm El Sheikh | 2025/09/22 10:00 | Jan Hrazdil v Daniele Augenti | 6-1,5-0 |
| ITF M25 Poznan | 2025/08/28 10:00 | Jan Hrazdil v Fryderyk Lechno-Wasiutynski | 6-7,1-6 |
| ITF M25 Poznan | 2025/08/27 09:30 | Tomasz Berkieta v Jan Hrazdil | 7-5,5-7,0-0 |
| ITF M25 Poznan | 2025/08/26 08:00 | Jan Hrazdil v Toprak Avcibasi | 7-6,6-4 |
| ITF M15 Krakow | 2025/08/20 12:54 | Jan Hrazdil v Martyn Pawelski | 1-6,2-6 |
| Challenger Todi | 2025/08/10 12:00 | Andrea Picchione v Jan Hrazdil | 6-1,7-6 |
| ITF M15 Poprad | 2025/07/16 11:19 | Leon Sloboda v Jan Hrazdil | 3-6,7-5,5-0 |
| Challenger Nottingham | 2025/07/07 12:40 | Jan Hrazdil v Alexis Canter | 6-2,2-6,4-6 |