Stadium: Court 7 - Center Round: 44 Ground: Clay
| UTR Pro Tennis Series Zadar | 2021/07/01 09:30 | Constant De La Bassetiere v Frane Nincevic | 3-6,2-6 |
| UTR Pro Tennis Series Zadar | 2021/06/29 11:00 | Warren Sinius v Frane Nincevic | 5-7,3-6 |
| UTR Pro Tennis Series Zadar | 2021/06/28 12:30 | Frane Nincevic v Jerko Brkic | 6-1,7-5 |
| ITF M15 Sarajevo | 2021/06/02 09:00 | Frane Nincevic v Mathieu Perchicot | 6-2,2-6,4-6 |
| ITF M15 Sibenik | 2021/05/17 08:00 | Nikola Basic v Frane Nincevic | 6-7,6-1,10-8 |
| Challenger Zagreb | 2021/05/09 08:30 | Frane Nincevic v Ramkumar Ramanathan | 4-6,3-6 |
| ITF M15 Sibenik | 2021/04/21 08:00 | Sebastian Prechtel v Frane Nincevic | 6-0,6-3 |
| Challenger Split Qual | 2021/04/11 12:25 | Frane Nincevic v Tristan Lamasine | 1-6,5-7 |
| Challenger Biella | 2021/05/02 12:30 | Stefano Reitano v Dimitar Kuzmanov | 6-2,2-6,2-6 |
| ITF M15 Monastir | 2021/03/15 12:30 | Stefano Reitano v Luigi Sorrentino | 4-6,2-6 |
| ITF M15 Monastir | 2021/03/15 08:00 | Stefano Reitano v Youcef Rihane | 3-6,6-3,10-6 |
| ITF M15 Monastir | 2021/03/14 09:00 | Juan Ignacio Galarza v Stefano Reitano | 2-6,2-6 |
| ITF M15 Monastir | 2021/03/07 09:00 | Stefano Reitano v Buvaysar Gadamauri | 5-7,6-4,5-10 |
| ITF M15 Monastir | 2021/03/03 13:20 | Stefano Reitano v Naoki Tajima | 1-6,0-6 |
| ITF M15 Monastir | 2021/03/01 13:00 | Stefano Reitano v Christian Hansen | 7-6,6-2 |
| ITF M15 Monastir | 2021/03/01 09:00 | Stefano Reitano v Leonardo Taddia | 6-1,6-0 |