| UTR Pro Athens | 2023/12/11 11:00 | Dimosthenis Taramonlis v Nazar Oliynykov | 6-0,6-0 |
| ITF M25 Heraklion | 2023/11/27 08:00 | Thomas Mathys v Nazar Oliynykov | 6-2,3-6,10-4 |
| ITF M15 Heraklion | 2023/11/22 12:00 | Mili Poljicak v Nazar Oliynykov | 6-1,6-0 |
| ITF M15 Heraklion | 2023/11/21 07:00 | Nazar Oliynykov v Thomas Kostka | 7-6,7-5 |
| ITF M15 Heraklion | 2023/11/20 11:00 | Nazar Oliynykov v Dimitris Sakellaridis | 6-0,6-0 |
| ITF M15 Heraklion | 2023/11/19 11:00 | Denis Constantin Spiridon v Nazar Oliynykov | 6-1,3-6,5-10 |
| ITF M25 Heraklion | 2023/11/14 07:30 | Benjamin Pietri v Nazar Oliynykov | 6-1,6-3 |
| ITF M25 Heraklion | 2023/11/13 08:30 | Mateusz Kulakowski v Nazar Oliynykov | 1-6,7-5,3-10 |
| ITF M15 Antalya | 2023/12/04 07:00 | Ku Keon Kang v Ivan Denisov | 6-4,6-1 |
| ITF M15 Antalya | 2023/12/03 07:00 | Iliyas Maratuly v Ivan Denisov | 5-7,4-6 |
| ITF M25 Antalya | 2023/11/22 09:00 | Maxim Zhukov v Ivan Denisov | 6-2,6-4 |
| ITF M25 Antalya | 2023/11/21 08:35 | Ivan Denisov v Gokberk Saritas | 6-1,6-4 |
| ITF M25 Antalya | 2023/11/20 07:35 | Ivan Denisov v Alper Okay Meryumoglu | 6-2,6-2 |
| ITF M25 Antalya | 2023/11/14 09:35 | Sergey Fomin v Ivan Denisov | 6-1,7-5 |
| ITF M25 Antalya | 2023/11/12 07:00 | Samuel Stolarik v Ivan Denisov | 4-6,2-6 |
| ITF M15 Antalya | 2023/11/05 07:00 | Nikola Puntaric v Ivan Denisov | 2-6,6-3,10-8 |