Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M25 - Johannesburg - Kvalifikation | 2021/09/19 08:50 | Shahar Gabay v George Gregoriou | 6-3,6-4 |
| ITF M15 - Cairo | 2021/08/04 14:15 | Juan Bautista Torres v George Gregoriou | 6-2,6-0 |
| ITF M15 - Cairo | 2021/07/18 09:30 | Federico Luzzo v George Gregoriou | 6-3,6-2 |
| ITF M25 - Beograd | 2021/06/27 12:00 | Martin Zeljenka v George Gregoriou | 6-1,6-1 |
| ITF M25 - Johannesburg | 2021/09/20 07:00 | Guelord Kayombo v Preston Brown | 1-6,2-6 |
| ITF M25 - Johannesburg - Kvalifikation | 2021/09/19 11:45 | Guelord Kayombo v Mengezi D A Sibanda | 6-1,6-3 |
| ITF M15 - Sharm El Sheikh | 2021/03/28 11:30 | Guelord Kayombo v Alexandros Skorilas | 2-6,1-6 |
| ITF M15 Pretoria | 2019/09/29 09:30 | Devin Badenhorst v Guelord Kayombo | 6-2,6-2 |
| ITF M15 Johannesburg | 2019/09/22 13:05 | Dylan Salton v Guelord Kayombo | 6-0,6-0 |