Stadium: Court 4 Round: 62 Ground: Clay
| ITF M15 Šibenik | 2021/05/16 07:30 | Lovre Erceg v Nikola Basic | 0-6,1-6 |
| ITF M15 Šibenik | 2021/04/18 10:00 | Nikola Basic v Luka Mikrut | 4-6,6-4,6-10 |
| ITF - M15 Porec | 2021/03/08 11:30 | Nikola Basic v Matteo Arnaldi | 1-6,3-6 |
| ITF - M15 Porec | 2021/03/07 13:00 | Luka Mikrut v Nikola Basic | 5-7,2-6 |
| Adriatic Tennis Series | 2020/06/15 13:21 | Nikola Basic v Mili Poljicak | 6-4,2-6,0-0 |
| Adriatic Tennis Series | 2020/06/15 11:00 | Nikola Basic v Mili Poljicak | 5-4 |
| ITF - M15 Porec | 2020/03/08 14:00 | Nikola Basic v Luka Mrsic | 7-5,2-6,4-10 |
| ITF M15 Rovinj | 2019/03/20 12:05 | Nikola Basic v Oleksii Krutykh | 0-6,4-6 |
| Challenger Záhřeb | 2021/05/09 08:30 | Frane Nincevic v Ramkumar Ramanathan | 4-6,3-6 |
| ITF M15 Šibenik | 2021/04/21 08:00 | Sebastian Prechtel v Frane Nincevic | 6-0,6-3 |
| Challenger Split - kvalifikace | 2021/04/11 12:25 | Frane Nincevic v Tristan Lamasine | 1-6,5-7 |
| Challenger Zadar | 2021/03/24 09:00 | Frane Nincevic v Sumit Nagal | 0-6,1-6 |
| Challenger Zadar | 2021/03/22 13:15 | Frane Nincevic v Mili Poljicak | 4-6,6-4,6-3 |
| ITF M15 Rovinj | 2021/03/17 09:00 | Timo Legout v Frane Nincevic | 6-0,7-6 |
| ITF M15 Rovinj | 2021/03/16 12:55 | Frane Nincevic v Gian Marco Ortenzi | 6-1,6-4 |
| ITF M15 Rovinj | 2021/03/15 13:30 | Louis Tessa v Frane Nincevic | 4-6,6-4,8-10 |