Stadium: Court 2 Round: 44 Ground: Clay
| ITF - M15 Prijedor | 2021/05/09 12:30 | Nicolas Zanellato v Balj, Alexandar | 6-1,6-4 |
| ITF - M15 Prijedor | 2021/05/09 12:30 | Tadija Radovanovic v Heger, Tim | 3-6,3-6 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/21 08:00 | Heger, Tim v Marco Miceli | 3-6,4-6 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/20 10:05 | Botezan, George v Heger, Tim | 6-3,4-6,9-11 |
| Sibenik, Singles M-ITF-CRO-05A | 2021/04/19 14:30 | Borna Devald v Heger, Tim | 3-6,2-6 |
| ITF - M15 Opatija | 2021/03/21 11:00 | Ban, Ivan Karlo v Heger, Tim | 6-3,2-6,10-8 |
| ITF - M15 Rovinj | 2021/03/15 09:30 | Heger, Tim v Nincevic, Frane | 6-7,4-6 |
| ITF - M15 Porec | 2021/03/07 14:30 | Heger, Tim v Emilien Voisin | 6-1,4-6,7-10 |
| ITF - M15 Monastir | 2020/10/26 08:30 | Alexandros Skorilas v Heger, Tim | 6-3,3-6,10-6 |