| UTR Pro Tennis Series Zadar | 07/03 08:30 | - | Krstanovic, Josip v Zmak, Deni | 5-7,3-5 | |
| UTR Pro Tennis Series Zadar | 07/02 12:30 | - | Krstanovic, Josip v Nincevic, Frane | 6-4,1-6,7-5 | |
| UTR Pro Tennis Series Zadar | 06/30 08:00 | - | Krstanovic, Josip v Jerko Brkic | 6-4,5-3 | |
| UTR Pro Tennis Series Zadar | 06/29 11:00 | - | Krstanovic, Josip v de La Bassetiere, Constant | 1-6,6-3,6-6 | |
| UTR Pro Tennis Series Zadar | 06/28 12:30 | - | Sinius, Warren v Krstanovic, Josip | 2-6,1-5 | |
| Sibenik, Singles M-ITF-CRO-05A | 04/19 10:00 | 62 | Sadaoui, Mehdi v Krstanovic, Josip | 7-6,6-4 | |
| Sibenik, Singles M-ITF-CRO-05A | 04/18 10:00 | 62 | Krstanovic, Josip v Daljev, Pavle | 6-4,6-3 | |
| ITF - M15 Opatija | 03/21 11:00 | 62 | Oleksandr Ovcharenko v Krstanovic, Josip | 6-4,6-0 | |
| ITF - M15 Rovinj | 03/15 11:00 | 62 | Krstanovic, Josip v Federico Arnaboldi | 1-6,2-6 | |
| ITF - M15 Rovinj | 03/14 08:30 | 62 | Krstanovic, Josip v Frinzi, Mattia | 6-2,7-6 | |
| ITF - M15 Porec | 03/07 12:00 | 62 | Damien Wenger v Krstanovic, Josip | 7-6,6-0 | |
| ITF - M15 Antalya | 02/21 13:00 | 62 | Krstanovic, Josip v Manda, Calin | 2-6,3-6 |