Stadium: Court 6 Round: 29 Ground: Hardcourt outdoor
| ITF M25 Pretoria MD | 2021/10/01 13:25 | Beale/Lock v Peliwo/Stevenson | 6-3,2-6,13-11 |
| ITF M25 Pretoria MD | 2021/09/30 12:00 | Beale/Lock v Malan/Scott | 6-4,6-4 |
| ITF M25 Pretoria MD | 2021/09/28 10:25 | Beale/Lock v Arends/Montsi | 6-3,6-4 |
| ITF M25 Pretoria MD | 2021/10/01 14:35 | Badenhorst/Koenig v Nijboer/Oberleitner | 3-6,6-1,7-10 |
| ITF M25 Pretoria MD | 2021/09/28 12:00 | Beckley/Hunter v Nijboer/Oberleitner | 6-3,3-6,8-10 |
| ITF M25 Johannesburg MD | 2021/09/22 13:05 | Malan/Scott v Nijboer/Oberleitner | 5-7,6-3,15-13 |
| ITF M25 Johannesburg MD | 2021/09/17 12:10 | Alves/Marcondes v Nijboer/Oberleitner | 7-6,6-7,10-6 |
| ITF M25 Johannesburg MD | 2021/09/16 13:30 | Niki/Vilardo v Nijboer/Oberleitner | 2-6,3-6 |
| ITF M25 Johannesburg MD | 2021/09/14 14:00 | Seelig/Sibanda v Nijboer/Oberleitner | 2-6,7-5,8-10 |
| ITF M15 Sharm El Sheikh MD | 2021/04/10 08:00 | Nijboer/Oberleitner v Ochi/Shimizu | 4-6,7-6,10-6 |
| ITF M15 Sharm El Sheikh MD | 2021/04/08 11:30 | Nijboer/Oberleitner v Krainer/Setkic | 6-1,6-3 |