| ITF M15 Osijek | 04/30 11:20 | 62 | Jan Kupcic v Domagoj Biljesko | 6-4,6-2 | |
| ITF M15 Osijek | 04/29 16:10 | 62 | Domagoj Biljesko v Syl Gaxherri | 6-4,6-3 | |
| ITF M15 Osijek | 04/28 07:00 | 62 | Luka Miklavcic v Domagoj Biljesko | 3-6,5-7 | |
| ITF M15 Split | 04/22 08:00 | 62 | Noah Perfetti v Domagoj Biljesko | 6-3,7-5 | |
| ITF M15 Split | 04/21 07:00 | 62 | Domagoj Biljesko v Yannick Penkner | 6-4,6-0 | |
| UTR Pro Beograd | 04/14 08:30 | - | Domagoj Biljesko v Vuk Radjenovic | 7-5,6-7,6-4 | |
| UTR Pro Beograd | 04/13 13:00 | - | Niels Lootsma v Domagoj Biljesko | 6-7,1-6 | |
| UTR Pro Beograd | 04/12 08:30 | - | Andrej Nedic v Domagoj Biljesko | 7-6,7-5 | |
| UTR Pro Beograd | 04/11 07:00 | - | Ilie Babinciuc v Domagoj Biljesko | 1-6,4-6 | |
| UTR Pro Beograd | 04/09 12:36 | - | Christopher Bulus v Domagoj Biljesko | 2-6,5-7 | |
| UTR Pro Beograd | 04/08 07:00 | - | Domagoj Biljesko v Sasa Markovic | 6-3,6-2 | |
| ITF M15 Opatija | 03/18 09:30 | 62 | Domagoj Biljesko v Emanuele Mazzeschi | 3-6,6-3,4-10 | |
| ITF M15 Opatija | 03/17 08:00 | 62 | Edoardo Cherie Ligniere v Domagoj Biljesko | 1-6,3-6 | |
| ITF M15 Rovinj | 03/13 12:20 | 25 | Kevin Humpfner v Domagoj Biljesko | 4-6,6-4,6-2 | |
| ITF M15 Porec | 03/03 11:30 | 62 | Noah Perfetti v Domagoj Biljesko | 2-6,6-4,10-5 | |
| UTR Pro Olomouc | 11/11 07:00 | - | Domagoj Biljesko v Dennis Dragomirov | 3-6,6-7 | |
| UTR Pro Olomouc | 11/10 11:55 | - | Karol Filar v Domagoj Biljesko | 6-4,6-2 | |
| UTR Pro Olomouc | 11/09 07:00 | - | Jan Kusy v Domagoj Biljesko | 2-6,1-6 | |
| UTR Pro Olomouc | 11/08 11:30 | - | David Schwarc v Domagoj Biljesko | 4-6,1-5 | |
| UTR Pro Olomouc | 11/06 12:00 | - | Robert Rumler v Domagoj Biljesko | 6-3,1-6,4-6 | |
| UTR Pro Zadar | 10/22 11:30 | - | Maciej Rajski v Domagoj Biljesko | 6-2,6-1 | |
| UTR Pro Zadar | 10/20 07:30 | - | Domagoj Biljesko v Cian Maguire | 6-4,6-2 | |
| UTR Pro Zadar | 10/19 06:00 | - | Domagoj Biljesko v Patrik Meszaros | 6-4,3-6,6-3 | |
| UTR Pro Zadar | 10/18 07:30 | - | Filip Krolo v Domagoj Biljesko | 6-2,3-6,2-6 | |
| UTR Pro Zadar | 10/17 06:00 | - | Robert Rumler v Domagoj Biljesko | 3-6,3-6 | |
| UTR Pro Beograd | 10/15 06:00 | - | Domagoj Biljesko v Janos Fekete | 5-7,4-6 | |
| UTR Pro Beograd | 10/14 06:00 | - | Domagoj Biljesko v Aleksa Pisaric | 6-1,5-2 | |
| UTR Pro Beograd | 10/12 07:30 | - | Milan Drinic v Domagoj Biljesko | 6-3,3-6,4-6 | |
| UTR Pro Beograd | 10/11 07:30 | - | Tadija Radovanovic v Domagoj Biljesko | 0-6,1-5 | |
| UTR Pro Beograd | 10/10 06:00 | - | Stefan Popovic v Domagoj Biljesko | 6-0,6-4 |