| UTR Pro Tennis Series Zadar | 2021/10/01 08:00 | Christos Keisidis v Drazen Petrovic | 6-4,6-4 |
| UTR Pro Beograd | 2023/10/02 06:00 | Christos Keisidis v Zoran Ludoski | 4-6,6-7 |
| UTR Pro Olomouc | 2023/09/17 07:30 | Mikolaj Lis v Christos Keisidis | 1-6,3-6 |
| UTR Pro Olomouc | 2023/09/16 10:52 | Christos Keisidis v Jakub Novak | 6-4,7-6 |
| UTR Pro Olomouc | 2023/09/15 06:00 | Christos Keisidis v Oleg Prihodko | 1-6,1-6 |
| UTR Pro Olomouc | 2023/09/13 06:00 | Dominik Recek v Christos Keisidis | 6-2,6-1 |
| UTR Pro Sofia | 2023/09/09 08:00 | Vardan Manukyan v Christos Keisidis | 0-4 |
| UTR Pro Sofia | 2023/09/08 05:00 | Sergo Sikharulidze v Christos Keisidis | 2-6,3-6 |
| UTR Pro Sofia | 2023/09/07 06:30 | Gabriel Donev v Christos Keisidis | 6-3,6-2 |
| UTR Pro Beograd | 2023/10/01 09:36 | Ilya Snitari v Drazen Petrovic | 6-1,6-3 |
| ITF M25 Zlatibor | 2023/09/27 14:30 | Drazen Petrovic v Hernando J E Isnardi | 2-6,4-6 |
| ITF M25 Zlatibor | 2023/09/27 07:00 | Zekai Li v Drazen Petrovic | 6-3,3-6,3-10 |
| ITF M25 Zlatibor | 2023/09/26 09:30 | Drazen Petrovic v Marko Maric | 7-6,6-2 |
| ITF M15 Kursumlijska Banja | 2023/09/17 10:30 | Drazen Petrovic v Aleksandar Mihailovic | 3-6,7-5,11-13 |
| ITF M15 Kursumlijska Banja | 2023/09/11 07:00 | Drazen Petrovic v Francesco Ferrari | 2-6,7-6,7-10 |
| ITF M15 Kursumlijska Banja | 2023/09/10 07:00 | Drazen Petrovic v Boris Stojanovic | 6-3,6-2 |
| ITF M15 Pirot | 2023/09/04 07:30 | Drazen Petrovic v Francesco Ferrari | 2-6,4-6 |