Stadium: Court 15 Round: 62
| ITF M15 Platja D'Aro | 2021/10/05 08:00 | Stefan Cizelj-Zivkovic v Jorge Martinez Martinez | 0-6,1-6 |
| ITF M15 Platja D'Aro | 2021/10/03 08:00 | Zhenxiong Dong v Stefan Cizelj-Zivkovic | 4-6,4-6 |
| ITF M15 Cairo | 2021/09/12 08:00 | Andrei Cuceu v Stefan Cizelj-Zivkovic | 6-4,6-3 |
| ITF M15 Cairo | 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 Cairo | 2021/04/18 07:00 | Rimpei Kawakami v Stefan Cizelj-Zivkovic | 6-2,6-2 |
| ITF M15 Platja D'Aro | 2021/10/04 11:00 | Noah Lopez v Bruno P Navarro | 2-6,4-6 |
| ITF M15 Platja D'Aro | 2021/10/03 11:00 | Noah Lopez v Vicente O Moratalla | 6-2,3-6,10-4 |
| UTR Pro Tennis Series Barcelona | 2021/10/03 07:30 | Kuzey Cekirge v Noah Lopez | 4-6,6-1,5-0 |
| UTR Pro Tennis Series Barcelona | 2021/10/02 08:30 | Pol Amoros Ramos v Noah Lopez | 4-6,4-5 |
| UTR Pro Tennis Series Barcelona | 2021/10/01 09:30 | George Botezan v Noah Lopez | 2-6,0-0 |
| UTR Pro Tennis Series Barcelona | 2021/09/30 11:00 | Fermin Calvo Barcelo v Noah Lopez | 6-3,6-4 |
| UTR Pro Tennis Series Barcelona | 2021/09/29 08:00 | Pol Fernandez v Noah Lopez | 6-7,1-6 |
| UTR Pro Tennis Series Barcelona | 2021/09/27 12:30 | Oleksandr Bielinskyi v Noah Lopez | 6-3,4-5 |