Stadium: Court 6 Round: 62 Ground: Hardcourt outdoor
| ITF M25 Pretoria | 2021/09/27 10:15 | Koenig, Luc v Davis, Jamie | 6-4,6-4 |
| ITF M25 Pretoria | 2021/09/26 08:50 | Preston Brown v Koenig, Luc | 7-5,2-6,5-10 |
| ITF M25 Johannesburg | 2021/09/21 07:00 | Hunter, Vaughn v Koenig, Luc | 6-4,6-4 |
| ITF M25 Johannesburg | 2021/09/20 07:00 | Koenig, Luc v Daniil Savelev | 6-0,6-2 |
| ITF M25 Johannesburg Qual | 2021/09/19 10:35 | Hobbs, Roy v Koenig, Luc | 6-7,6-7 |
| ITF M25 Johannesburg | 2021/09/15 09:40 | Menelaos Efstathiou v Koenig, Luc | 6-2,4-6,6-2 |
| ITF - M15 Monastir | 2021/06/07 09:00 | Sungbeen Sim v Koenig, Luc | 6-3,6-1 |
| ITF - M15 Monastir | 2021/06/06 10:00 | Koenig, Luc v Cyril Vandermeersch | 4-6,6-1,10-8 |
| ITF M25 Pretoria | 2021/09/27 10:45 | Kayombo, Guelord v Simon, Sahar | 1-6,0-6 |
| ITF M25 Pretoria | 2021/09/26 10:20 | Gabay, Shahar v Simon, Sahar | 0-6,2-6 |
| ITF M25 Johannesburg | 2021/09/22 08:40 | Simon, Sahar v Benjamin Lock | 4-6,3-6 |
| ITF M25 Johannesburg | 2021/09/21 07:00 | Kiyamov, Timur v Simon, Sahar | 6-2,4-6,6-10 |
| ITF M25 Johannesburg | 2021/09/20 08:15 | Tadija Radovanovic v Simon, Sahar | 2-6,2-6 |
| ITF M25 Johannesburg Qual | 2021/09/19 07:00 | Jacob Pieter Lubbe v Simon, Sahar | 1-6,0-6 |
| ITF M25 Johannesburg | 2021/09/18 09:40 | Beale, Jeremy v Simon, Sahar | 6-4,6-4 |
| ITF M25 Johannesburg | 2021/09/17 09:55 | Simon, Sahar v Filip Peliwo | 3-6,6-2,6-4 |