Stadium: Court 4 Round: 25 Ground: Clay
| ITF M15 Sharm El Sheikh | 2020/10/20 07:00 | Georgii Kravchenko v Ryan Nijboer | 6-3,6-3 |
| ITF M15 Balatonalmadi | 2019/06/20 08:00 | Ryan Nijboer v Georgii Kravchenko | 7-5,4-6,3-6 |
| ITF M25 Reus | 2023/04/06 11:00 | Ryan Nijboer v Alex M Pujolras | 4-6,5-7 |
| ITF M25 Reus | 2023/04/05 07:55 | Ryan Nijboer v Pedro Araujo | 5-7,6-2,6-1 |
| Challenger Las Franquesas del Valles | 2023/03/20 11:15 | Billy Harris v Ryan Nijboer | 6-3,3-6,6-2 |
| Challenger Las Franquesas del Valles | 2023/03/19 15:40 | Ryan Nijboer v Maxime Chazal | 6-4,7-5 |
| ITF M15 Sharm El Sheikh | 2023/03/16 10:10 | Ryan Nijboer v Lukas Pokorny | 4-6,1-6 |
| ITF M15 Sharm El Sheikh | 2023/03/15 11:55 | Samuel Vincent Ruggeri v Ryan Nijboer | 6-7,4-6 |
| ITF M15 Sharm El Sheikh | 2023/03/08 08:00 | Jakob Schnaitter v Ryan Nijboer | 6-1,7-6 |
| ITF M25 Torello | 2023/02/26 12:00 | Ryan Nijboer v Luka Novakovic | 4-6,4-6 |
| ITF M25 Reus | 2023/04/06 08:30 | Georgii Kravchenko v Alejandro Manzanera Pertusa | 6-7,6-7 |
| ITF M25 Reus | 2023/04/05 09:50 | Georgii Kravchenko v Martin Cuevas | 7-5,6-4 |
| Challenger Las Franquesas del Valles | 2023/03/19 17:25 | Maks Kasnikowski v Georgii Kravchenko | 6-7,7-5,6-3 |
| ITF M25 Portimao | 2023/03/17 12:45 | Adria Soriano Barrera v Georgii Kravchenko | 6-1,6-2 |
| ITF M25 Portimao | 2023/03/16 16:00 | Georgii Kravchenko v Sebastian Fanselow | 6-3,4-6,6-4 |
| ITF M25 Portimao | 2023/03/15 15:05 | Tomas Vaise v Georgii Kravchenko | 2-6,3-6 |
| ITF M25 Quinta Do Lago | 2023/03/09 15:05 | Georgii Kravchenko v Kyrian Jacquet | 4-6,6-1,8-10 |
| ITF M25 Torello | 2023/03/02 09:55 | Georgii Kravchenko v John Echeverria | 6-3,4-6,4-6 |