Stadion: Court 3 Round: 44 Ground: Clay
| ITF - M15 - Tbilisi | 2021/05/17 05:30 | Aleksandr Braynin v Stefan Cizelj-Zivkovic | 6-4,6-3 |
| ITF - M15 - Kairo | 2021/04/18 07:00 | Rimpei Kawakami v Stefan Cizelj-Zivkovic | 6-2,6-2 |
| ITF - M15 - Kairo | 2021/04/11 08:00 | Stefan Cizelj-Zivkovic v Andrea Gola | 1-6,2-6 |
| ITF - M15 - La Nucia | 2021/03/08 08:00 | Stefan Cizelj-Zivkovic v Clement Deleersnyder | 2-6,2-6 |
| ITF - M15 - Sharm El Sheikh | 2021/01/31 13:30 | Luka Pavlovic v Stefan Cizelj-Zivkovic | 6-1,6-2 |
| ITF - M15 - Heraklion | 2020/02/23 08:00 | Stefan Cizelj-Zivkovic v Ioannis Xilas | 3-6,3-6 |
| ITF - M15 - Heraklion | 2020/02/16 11:00 | Stefan Cizelj-Zivkovic v Sahar Simon | 1-6,1-6 |
| ITF - M15 - Heraklion | 2020/02/09 10:00 | Gian Luca Tanner v Stefan Cizelj-Zivkovic | 6-1,6-1 |
| ITF - M15 - Antalya | 2021/05/23 07:00 | Marco Mania v Nicolas Parizzia | 1-6,0-6 |
| ITF - M15 - Antalya | 2021/05/18 07:00 | Orlando Luz v Marco Mania | 6-1,6-0 |
| ITF - M15 - Kairo | 2021/05/02 10:00 | Marco Mania v Christian Didier Chin | 2-6,7-5,6-10 |
| ITF - M15 - Kairo | 2021/04/25 07:30 | Marco Mania v Eduardo Ribeiro | 1-6,0-6 |
| ITF - M15 - Kairo | 2021/04/18 17:30 | Marco Mania v Fares Zakaria | 6-1,1-6,4-10 |
| ITF - M15 - Kairo | 2021/04/11 07:00 | Francesco Passaro v Marco Mania | 6-0,6-3 |
| ITF - M15 - Sharm El Sheikh | 2021/03/28 17:30 | Marco Mania v Michael Bassem Sobhy | 4-6,0-6 |
| ITF - M15 - Paguera | 2020/02/16 09:30 | Marco Mania v Ilya Rudiukov | 1-6,5-7 |