| UTR Series NIT | 2023/05/20 16:00 | Joubert Klopper v Daniel Sancho Arbizu | 6-3,2-3 |
| UTR Series NIT | 2023/05/19 18:30 | Joubert Klopper v Ryan Torres | 6-3,3-6,6-2 |
| UTR Series NIT | 2023/05/18 14:14 | Joubert Klopper v Harsh Kheterpal | 6-0,1-0 |
| ITF M25 Austin | 2021/11/16 21:55 | Sander Jong v Joubert Klopper | 6-1,6-2 |
| ITF M15 Johannesburg | 2019/09/24 11:30 | Joubert Klopper v Mehluli D A Sibanda | 3-6,5-7 |
| ITF South Africa F3 | 2018/12/04 12:50 | Joubert Klopper v Jean Thirouin | 3-6,2-6 |
| ITF South Africa F2 Qual | 2017/11/26 13:50 | Kevin Kaczynski v Joubert Klopper | 6-4,2-6,6-3 |
| ITF South Africa F2 Qual | 2017/11/25 06:30 | Joubert Klopper v Daniel Kossek | 7-6,6-2 |