Stadium: Court 6 Round: 62 Ground: Clay
| ITF M15 Novi Sad | 2021/08/02 09:30 | Aleksandar Tomas v Simon Habsuda | 6-1,6-0 |
| ITF M15 Novi Sad | 2021/08/01 09:30 | Frane Nincevic v Aleksandar Tomas | 6-4,3-6,6-10 |
| ITF M15 Novi Sad | 2021/07/26 10:30 | Aleksandar Tomas v Koray Kirci | 4-6,2-6 |
| ITF M25 Telfs | 2021/07/13 11:10 | Gonzalo Lama v Aleksandar Tomas | 6-3,6-1 |
| ITF M25 Belgrád | 2021/06/27 07:00 | Aleksandar Tomas v Petar Pjevcevic | 3-6,1-6 |
| ITF M15 Antalya | 2021/06/20 07:00 | Daiki Yoshimura v Aleksandar Tomas | 6-1,6-3 |
| ITF M15 Antalya | 2021/06/13 07:30 | Oleg Prihodko v Aleksandar Tomas | 6-2,6-2 |
| ITF M15 Brcko | 2021/05/21 13:25 | Aleksandar Tomas v Viktor Jovic | 0-6,1-6 |
| ITF M15 Novi Sad | 2021/08/02 08:00 | Drazen Petrovic v Darko Jandric | 6-4,6-0 |
| ITF M15 Novi Sad | 2021/08/01 08:30 | Drazen Petrovic v Milos Vukovic | 6-4,6-2 |
| ITF M15 Doboj | 2021/07/13 08:00 | Dusan Obradovic v Drazen Petrovic | 6-4,6-4 |
| ITF M15 Doboj | 2021/07/12 08:00 | Drazen Petrovic v Janos Fekete | 6-4,2-6,13-11 |
| ITF M25 Velenje | 2021/07/04 07:30 | Drazen Petrovic v Tadija Radovanovic | 4-6,3-6 |
| ITF M25 Belgrád | 2021/06/27 09:00 | Drazen Petrovic v Stefan Ivic | 6-3,3-6,8-10 |
| ITF M15 Szarajevó | 2021/05/31 12:00 | Valentin Lapalu v Drazen Petrovic | 6-2,7-5 |
| ITF M15 Szarajevó | 2021/05/30 09:00 | Drazen Petrovic v Pavle Daljev | 6-2,6-1 |