| UTR Pro - Olomouc | 2023/07/04 06:00 | Christos Keisidis v Artem Podorozhnyi | 4-6,6-3,2-6 |
| UTR Pro - Olomouc | 2023/07/03 11:30 | Christos Keisidis v Janos Fekete | 7-6,3-6,1-6 |
| ITF - M25 Skopje | 2023/06/06 07:30 | Tymur Bieldiugin v Christos Keisidis | 7-6,2-6,10-8 |
| ITF - M25 Skopje | 2023/06/05 07:55 | Erik Vladimirov v Christos Keisidis | 4-6,3-6 |
| ITF - M25 Skopje | 2023/06/04 07:00 | Alexandar Balj v Christos Keisidis | 4-6,2-6 |
| UTR Pro - Thessaloniki | 2023/04/28 05:00 | Christos Keisidis v Andreas Loizas | 2-5 |
| UTR Pro - Thessaloniki | 2023/04/27 05:00 | Christos Keisidis v Samuel Kyjaci | 3-6,2-6 |
| UTR Pro - Thessaloniki | 2023/04/26 09:43 | Ivan Kremenchutskyi v Christos Keisidis | 2-6,7-6,7-6 |
| UTR Pro - Olomouc | 2023/07/04 10:15 | Janos Fekete v Oleg Prihodko | 6-7,6-0,1-6 |
| Challenger - Medellin | 2023/06/26 18:00 | Andres Urrea v Oleg Prihodko | 4-6,7-6,6-3 |
| Challenger - Cali | 2023/06/18 16:00 | Gonzalo Lama v Oleg Prihodko | 3-6,6-3,7-5 |
| Challenger - Lyon | 2023/06/11 15:50 | Maxime Janvier v Oleg Prihodko | 7-6,3-6,6-4 |
| ITF - M15 Pazardžik | 2023/05/20 07:00 | Simone Roncalli v Oleg Prihodko | 6-4,6-3 |
| ITF - M15 Pazardžik | 2023/05/19 07:45 | Valentin Vanta v Oleg Prihodko | 4-6,1-6 |
| ITF - M15 Pazardžik | 2023/05/16 08:00 | Axel Garcian v Oleg Prihodko | 4-6,6-1,0-6 |
| Challenger - Praha | 2023/05/08 09:00 | Oleg Prihodko v Gastao Elias | 6-7,3-6 |