Stadium: Centre Court Round: 25 Ground: Clay
| ITF M15 Novi Sad | 2021/08/03 09:40 | Aleksandar Tomas v Drazen Petrovic | 6-7,6-0,10-8 |
| 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 Belgrade | 2021/06/27 09:00 | Drazen Petrovic v Stefan Ivic | 6-3,3-6,8-10 |
| ITF M15 Sarajevo | 2021/05/31 12:00 | Valentin Lapalu v Drazen Petrovic | 6-2,7-5 |
| Challenger Mallorca | 2021/08/31 10:45 | Ramkumar Ramanathan v Carlos Gomez-Herrera | 6-7,6-4,7-5 |
| Challenger Prague | 2021/08/09 09:25 | Geoffrey Blancaneaux v Carlos Gomez-Herrera | 6-3,3-6,6-0 |
| Challenger Prague | 2021/08/08 09:40 | Andrew Paulson v Carlos Gomez-Herrera | 1-6,3-6 |
| Challenger Segovia | 2021/07/26 11:05 | Carlos Gimeno Valero v Carlos Gomez-Herrera | 6-3,2-6,6-4 |
| Challenger Segovia | 2021/07/25 15:10 | Nicolas H Cuesta v Carlos Gomez-Herrera | 1-6,0-6 |
| Challenger Pozoblanco | 2021/07/19 20:45 | Carlos Gomez-Herrera v Hiroki Moriya | 6-3,3-6,0-6 |
| Challenger Aix en Provence | 2021/06/13 10:00 | Carlos Gomez-Herrera v Titouan Droguet | 5-7,4-6 |
| ATP Belgrade | 2021/05/23 10:50 | Carlos Gomez-Herrera v Alex Molcan | 3-6,6-7 |