| Tabarka, Singles Qualifying M-ITF-TUN-41A | 09/15 08:00 | 44 | Janis, Jason v Cizelj-Zivkovic, Stefan | 7-5,2-6,6-10 | |
| Ust-Kamenogorsk, Singles M-ITF-KAZ-06A | 08/26 04:00 | 54 | Cizelj-Zivkovic, Stefan v Bogatin, David | 1-6,3-6 | |
| ITF M15 Novi Sad | 08/12 08:00 | 54 | Cizelj-Zivkovic, Stefan v Micov, Stefan | 4-6,4-6 | |
| ITF - M15 Héraklion | 05/06 07:00 | 54 | Boyer, Toby D v Cizelj-Zivkovic, Stefan | 6-2,6-1 | |
| ITF - M15 Sharm El Sheikh | 02/06 08:00 | 25 | Maamoun, Karim-Mohamed v Cizelj-Zivkovic, Stefan | 6-0,6-1 | |
| ITF - M15 Sharm El Sheikh | 01/28 08:00 | 45 | Toby Martin v Cizelj-Zivkovic, Stefan | 6-1,6-1 | |
| ITF Turkey F35 | 11/03 09:00 | 62 | Cizelj-Zivkovic, Stefan v Ozcelik, Bulut | 2-6,1-6 | |
| ITF Turkey F34 | 10/28 07:00 | 62 | Uvarov, Andrey v Cizelj-Zivkovic, Stefan | 6-0,6-0 | |
| ITF Turkey F34 | 10/27 07:00 | 62 | Cizelj-Zivkovic, Stefan v Donmezer, Enes | 6-2,7-5 | |
| ITF Turkey F31 | 10/06 07:00 | 62 | Cizelj-Zivkovic, Stefan v Akbar, Mohammad Abid Ali Khan | 4-6,5-7 | |
| ITF Turkey F30 | 09/30 10:30 | 62 | Jonas Schaer v Cizelj-Zivkovic, Stefan | 6-2,6-3 | |
| ITF Turkey F30 | 09/29 07:00 | 62 | van Nieuwenhove, Jonathan v Cizelj-Zivkovic, Stefan | 7-5,4-6,4-6 | |
| Serbia F5, Singles | 09/02 10:30 | 62 | Wakita, Shunsuke v Cizelj-Zivkovic, Stefan | 6-4,6-2 | |
| Serbia F5, Singles | 09/01 09:30 | 62 | Cizelj-Zivkovic, Stefan v Polmans, Greg | 7-6,4-6,6-4 | |
| ITF Serbia F4 | 08/25 07:00 | 62 | Cizelj-Zivkovic, Stefan v Pjevcevic, Petar | 4-6,4-6 | |
| ITF Serbia F1 Qual | 08/04 07:00 | 62 | Cizelj-Zivkovic, Stefan v Dusan Obradovic | 6-7,6-3,2-6 |