Ground: Carpet indoor
| UTR Pro Olomouc | 2023/09/15 06:00 | Christos Keisidis v Oleg Prihodko | 1-6,1-6 |
| UTR Pro Olomouc | 2023/07/05 08:05 | Christos Keisidis v Oleg Prihodko | 2-6,1-6 |
| UTR Pro Olomouc | 2023/11/08 07:00 | Christos Keisidis v Dennis Dragomirov | 5-7,3-6 |
| UTR Pro Olomouc | 2023/11/07 07:00 | Christos Keisidis v Jakub Vrba | 6-7,3-6 |
| UTR Pro Olomouc | 2023/11/06 07:00 | Christos Keisidis v Gabor Mathe | 7-5,6-2 |
| UTR Pro Zadar | 2023/10/22 18:19 | Janos Fekete v Christos Keisidis | 6-4,2-6,4-0 |
| UTR Pro Zadar | 2023/10/22 13:00 | Christos Keisidis v Josip Simundza | 7-6,6-3 |
| UTR Pro Zadar | 2023/10/20 09:02 | Tim Heger v Christos Keisidis | 4-6,3-5 |
| UTR Pro Zadar | 2023/10/19 06:00 | Josh Roe Flannelly v Christos Keisidis | 0-6,0-2 |
| UTR Pro Zadar | 2023/10/17 07:30 | Duje Kekez v Christos Keisidis | 6-3,6-3 |
| UTR Pro Olomouc | 2023/11/08 10:00 | Gabor Mathe v Oleg Prihodko | 0-6,0-5 |
| UTR Pro Olomouc | 2023/11/06 09:19 | Jakub Vrba v Oleg Prihodko | 1-6,3-6 |
| ITF M15 Heraklion | 2023/10/26 11:00 | Oleg Prihodko v Stefanos Sakellaridis | 3-6,6-1,6-2 |
| ITF M15 Heraklion | 2023/10/24 09:00 | Thiemo De Bakker v Oleg Prihodko | 6-4,4-6,5-7 |
| ITF M15 Heraklion | 2023/10/20 07:00 | Oleg Prihodko v Oliver Ojakaar | 1-6,7-5,2-6 |
| ITF M15 Heraklion | 2023/10/19 09:25 | Oleg Prihodko v Alessandro Pecci | 6-4,6-3 |
| ITF M15 Heraklion | 2023/10/18 06:30 | Oleg Prihodko v Thomas Braithwaite | 6-3,6-4 |
| UTR Pro Beograd | 2023/10/08 09:35 | Ilya Snitari v Oleg Prihodko | 6-7,6-7 |