Stadium: court 7 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Johannesburg Qual | 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 |
| ITF M25 Johannesburg Qual | 2021/09/19 12:00 | Adi Dagan v Preston Brown | 0-6,5-7 |
| ITF M25 Johannesburg | 2021/09/13 09:40 | Preston Brown v Omer Yeshaya | 6-1,6-7,3-10 |
| ITF M25 Johannesburg | 2021/09/12 10:35 | Preston Brown v Logan Stoltz | 6-1,6-1 |
| ITF M25 Decatur | 2021/08/04 16:55 | Preston Brown v Eliot Spizzirri | 0-6,3-6 |
| ITF M25 Decatur | 2021/08/03 15:00 | Preston Brown v Connor Farren | 6-4,6-3 |
| ITF M25 Decatur | 2021/08/02 15:00 | Evan Zhu v Preston Brown | 2-6,2-6 |
| ITF M15 Edwardsville | 2021/07/19 14:00 | Preston Brown v Nicaise Muamba | 6-3,6-3 |
| ITF M15 Champaign | 2021/06/22 15:00 | Victor Lilov v Preston Brown | 7-5,6-0 |