Stadium: Court 2 Round: 26 Ground: Clay
| ITF M25 Wetzlar | 2021/08/04 09:55 | Georgii Kravchenko v Lorenzo Joaquin Rodriguez | 3-6,6-2,7-5 |
| ITF M25 Denia | 2021/07/28 16:00 | Ivan Gakhov v Georgii Kravchenko | 6-3,0-6,6-1 |
| Challenger Perugia | 2021/07/04 10:30 | Georgii Kravchenko v Arthur Cazaux | 1-6,1-6 |
| ITF M15 Novomoskovsk | 2021/05/27 09:20 | Matteo Arnaldi v Georgii Kravchenko | 7-6,6-4 |
| ITF M15 Novomoskovsk | 2021/05/26 06:15 | Dmytro Slyepkan v Georgii Kravchenko | 0-6,3-6 |
| ITF M15 Valldoreix | 2021/05/12 08:00 | Georgii Kravchenko v Niels Visker | 6-7,1-6 |
| ITF M15 Majadahonda | 2021/05/07 12:00 | Georgii Kravchenko v Oriol Roca Batalla | 7-6,1-6,1-6 |
| ITF M15 Majadahonda | 2021/05/06 08:30 | Georgii Kravchenko v Niels Visker | 2-6,6-3,6-2 |
| ITF M25 Wetzlar | 2021/08/04 08:00 | Marvin Moeller v Peter Heller | 2-6,3-6 |
| Challenger Salzburg | 2021/07/08 10:30 | Nicolas Jarry v Peter Heller | 6-2,6-4 |
| Challenger Salzburg | 2021/07/05 10:35 | Francisco Cerundolo v Peter Heller | 3-6,6-3,3-6 |
| ITF M15 Antalya | 2021/05/06 08:10 | Nick Hardt v Peter Heller | 3-6,6-0,7-5 |
| ITF M15 Antalya | 2021/05/05 08:55 | Karl Friberg v Peter Heller | 3-6,3-6 |
| ITF M15 Antalya | 2021/05/01 07:30 | Peter Heller v Jeroen Vanneste | 3-6,3-6 |
| ITF M15 Antalya | 2021/04/30 09:50 | Rio Noguchi v Peter Heller | 6-2,3-6,2-6 |
| ITF M15 Antalya | 2021/04/29 07:25 | Dan Alexandru Tomescu v Peter Heller | 6-0,3-6,5-7 |