Stadium: Sport Center Visnjik Court 4 (Clay) Ground: Clay
Referee:
| ITF M15 Litija | 2025/07/09 12:30 | Nazar Oliynykov v Felix Balshaw | 1-6,5-7 |
| ITF M15 Zagreb | 2025/06/25 11:53 | Francisco Rocha v Nazar Oliynykov | 6-1,6-1 |
| ITF M25 Kiseljak | 2025/06/10 07:30 | Matic Dimic v Nazar Oliynykov | 6-2,6-4 |
| UTR Pro Zadar | 2025/03/02 12:50 | Adam Gabor Szoke v Nazar Oliynykov | 3-6,2-6 |
| UTR Pro Zadar | 2025/03/02 08:00 | Nazar Oliynykov v Fran Rakonic | 6-2,7-5 |
| UTR Pro Zadar | 2025/03/01 16:55 | Karol Filar v Nazar Oliynykov | 4-6,7-5,6-4 |
| UTR Pro Zadar | 2025/03/01 11:30 | Kornel Halmos v Nazar Oliynykov | 5-7,6-4,6-7 |
| UTR Pro Zadar | 2025/02/28 09:55 | Drazen Petrovic v Nazar Oliynykov | 7-5,6-4 |
| UTR Pro Zadar | 2025/03/30 09:00 | Kristian Tumbas Kajgo v Sergej Zivkovic | 6-7,5-7 |
| UTR Pro Zadar | 2025/03/29 17:30 | Marshall Tutu v Kristian Tumbas Kajgo | 2-6,6-4,0-6 |
| UTR Pro Zadar | 2025/03/29 08:00 | Kristian Tumbas Kajgo v Vojtech Vales | 4-6,7-5,2-6 |
| UTR Pro Zadar | 2025/03/26 11:55 | Kristian Tumbas Kajgo v Vlado Jankanj | 3-6,6-7 |
| UTR Pro Zadar | 2025/03/25 12:45 | Kristian Tumbas Kajgo v Liam Hignett | 6-4,6-2 |
| UTR Pro Zadar | 2025/03/24 11:00 | Frane Nincevic v Kristian Tumbas Kajgo | 4-6,6-3,6-4 |
| ITF M15 Sharm El Sheikh | 2025/03/05 11:50 | Bogdan Seleznev v Kristian Tumbas Kajgo | 3-6,6-3,7-5 |
| ITF M15 Bol | 2024/10/13 11:00 | Kristian Tumbas Kajgo v David Schwarc | 0-6,0-6 |