| ITF M15 Tashkent | 2025/05/22 07:00 | Gian Gruenig v Igor Kudriashov | 3-6,3-6 |
| ITF M15 Heraklion | 2025/05/07 12:58 | Gian Gruenig v Rafael De Alba | 4-6,3-6 |
| ITF M25 Nottingham | 2025/04/28 10:30 | Luke Hooper v Gian Gruenig | 6-2,4-6,0-0 |
| ITF M25 Nottingham | 2025/04/27 09:00 | Gian Gruenig v Matt Hulme | 5-7,7-6,1-0 |
| ITF M15 Heraklion | 2025/03/28 08:30 | Gian Gruenig v Stuart Parker | 6-1,1-6,4-6 |
| ITF M25 Trimbach | 2025/03/05 11:45 | Gian Gruenig v Antoine Walch | 4-6,4-6 |
| Challenger Lugano | 2025/02/23 12:45 | Gian Gruenig v Juan Carlos Prado Angelo | 7-5,4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2025/02/11 08:00 | Michal Krajci v Gian Gruenig | 6-1,6-3 |
| UTR Pro Berkeley | 2025/02/09 18:30 | Derrick Chen v Timofey Stepanov | 7-5,6-4 |
| UTR Pro Berkeley | 2025/02/08 20:00 | Fryderyk Lechno-Wasiutynski v Timofey Stepanov | 1-6,2-6 |
| UTR Pro Berkeley | 2025/02/07 19:15 | Timofey Stepanov v Arnav Bhandari | 6-3,7-6 |
| UTR Pro Berkeley | 2025/02/06 01:10 | Timofey Stepanov v Nav Dayal | 6-2,6-4 |
| UTR Pro Berkeley | 2025/02/05 20:00 | Timofey Stepanov v Winston Lee | 6-1,6-3 |
| UTR Pro Berkeley | 2025/02/03 20:50 | Timofey Stepanov v Bernardo Munk Mesa | 6-7,6-3,4-6 |
| ITF M15 Vaasa | 2024/08/09 07:00 | Timofey Stepanov v Christopher Bulus | 3-6,6-7 |
| ITF M15 Vaasa | 2024/08/08 09:10 | Timofey Stepanov v Vesa Ahti | 6-1,6-3 |