Stadion: Court 6 Round: 62 Ground: Clay
| ITF - M15 - Kairo | 2021/09/08 08:00 | Jakub Wojcik v Andrei Cuceu | 6-3,6-2 |
| ITF - M15 - Kairo | 2021/09/01 12:15 | Manfred Fellin v Andrei Cuceu | 6-2,7-5 |
| ITF - M15 - Kairo | 2021/08/31 10:30 | Andrei Cuceu v Tommaso Vescovi | 4-6,6-2,11-9 |
| ITF - M15 - Kairo | 2021/08/30 12:30 | Arjun Mahadevan v Andrei Cuceu | 2-6,2-6 |
| ITF - M25 - Pitesti | 2021/08/01 10:00 | Jesse De Jager v Andrei Cuceu | 1-6,6-3,10-4 |
| ITF - M15 - Kairo | 2021/07/19 07:30 | Andrei Cuceu v Lautaro Agustin Falabella | 4-6,3-6 |
| ITF - M15 - Kairo | 2021/07/18 08:30 | Ahmed Borai v Andrei Cuceu | 4-6,6-7 |
| ITF - M15 - Kairo | 2021/09/05 08:30 | Lucio Carnevalle v Stefan Cizelj-Zivkovic | 6-3,6-2 |
| ITF - M25 - Velenje | 2021/07/05 12:15 | Stefan Cizelj-Zivkovic v Lukas Palovic | 3-6,1-6 |
| ITF - M25 - Velenje | 2021/07/04 07:30 | Stefan Cizelj-Zivkovic v Marco Mania | 7-6,6-0 |
| 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 |