Stadium: Court 8 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Bucharest | 2021/05/24 09:30 | Dragos Petre Popeanga v Bogdan Borza | 3-6,3-6 |
| ITF M15 Curtea de Arges | 2020/09/13 09:00 | Michalis Sakellaridis v Dragos Petre Popeanga | 6-4,7-5 |
| ITF M15 Heraklion | 2021/05/30 09:00 | Matic Dimic v Christian Sigsgaard | 3-6,2-6 |
| ITF M15 Heraklion | 2021/05/23 08:00 | Matic Dimic v Christos Keisidis | 2-6,4-6 |
| ITF M15 Sibenik | 2021/05/16 10:00 | Duje Kekez v Matic Dimic | 6-2,6-0 |
| ITF M15 Prijedor | 2021/05/11 08:00 | Matic Dimic v Bozo Barun | 2-6,6-2,7-10 |
| ITF M15 Prijedor | 2021/05/10 12:00 | Gorazd Srbljak v Matic Dimic | 6-7,7-5,7-10 |
| ITF M15 Sibenik | 2021/04/18 08:00 | Matic Dimic v Neil Oberleitner | 7-6,4-6,6-10 |
| ITF M15 Opatija | 2021/03/22 11:20 | Peter Bertran v Matic Dimic | 3-6,6-2,11-9 |
| ITF M15 Porec | 2021/03/07 14:30 | Matic Dimic v Kris Krawcewicz | 1-6,6-2,9-11 |