| ITF M15 Cairo | 2021/05/02 08:00 | Constant De La Bassetiere v Roland Stuurman | 6-3,6-4 |
| ITF M15 Cairo | 2021/04/28 12:40 | Constant De La Bassetiere v Alessandro Ingarao | 6-3,1-6,1-6 |
| ITF M15 Cairo | 2021/04/27 08:00 | Oleg Khotkov v Constant De La Bassetiere | 6-1,3-6,10-12 |
| ITF M15 Cairo | 2021/04/26 12:30 | Hans Peter Kaufmann v Constant De La Bassetiere | 2-6,4-6 |
| ITF M15 Cairo | 2021/04/25 16:00 | Sherif Makhlouf v Constant De La Bassetiere | 3-6,2-6 |
| ITF M15 Cairo | 2021/04/18 08:30 | Constant De La Bassetiere v Gian Marco Ortenzi | 0-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/11 10:00 | Alexander Lazov v Constant De La Bassetiere | 5-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 12:00 | Martin Dimitrov v Constant De La Bassetiere | 4-6,6-4,3-5 |
| 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 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 |
| ITF M15 Rovinj | 2021/03/15 09:30 | Tim Heger v Frane Nincevic | 6-7,4-6 |