Stadium: Court 1 Round: 62 Ground: Hardcourt outdoor
| 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 - M15 Monastir | 2021/05/23 13:00 | Koenig, Luc v Gregg, Perry | 3-6,3-6 |
| ITF M25 Pretoria | 2021/09/26 10:00 | Ebersohn, Henning v Davis, Jamie | 2-6,0-6 |
| ITF M25 Johannesburg Qual | 2021/09/19 08:25 | Yeshaya, Omer v Davis, Jamie | 6-2,2-6,10-8 |
| ITF M25 Johannesburg | 2021/09/13 07:25 | Davis, Jamie v Alec Beckley | 2-6,1-6 |
| ITF M25 Johannesburg | 2021/09/12 07:30 | Davis, Jamie v Adam Hobbs | 6-2,6-4 |
| Challenger Potchefstroom | 2021/02/14 10:55 | Davis, Jamie v Benjamin Hassan | 3-6,4-6 |
| Challenger Potchefstroom | 2021/02/07 12:35 | Vit Kopriva v Davis, Jamie | 6-1,6-1 |
| Potchefstroom, Singles Qualifying M-ITF-RSA-01A | 2020/03/03 11:32 | Kruger, Connor v Davis, Jamie | 6-1,7-5 |
| Potchefstroom, Singles Qualifying M-ITF-RSA-01A | 2020/03/03 10:15 | Kruger, Connor v Davis, Jamie | 6-1,7-5 |