| UTR Series NIT | 2023/05/20 16:00 | Klopper, Joubert v Daniel Sancho Arbizu | 6-3,2-3 |
| UTR Series NIT | 2023/05/19 18:30 | Klopper, Joubert v Ryan Torres | 6-3,3-6,6-2 |
| UTR Series NIT | 2023/05/18 14:14 | Klopper, Joubert v Harsh Kheterpal | 6-0,1-0 |
| ITF M25 Austin | 2021/11/16 21:55 | Sander Jong v Klopper, Joubert | 6-1,6-2 |
| Johannesburg, Singles M-ITF-RSA-01A | 2019/09/24 11:30 | Klopper, Joubert v Sibanda, Mehluli Don Ayanda | 3-6,5-7 |
| ITF South Africa F3 | 2018/12/04 12:50 | Klopper, Joubert v Thirouin, Jean | 3-6,2-6 |
| Afrique du Sud F2, Qualifications Simples | 2017/11/26 13:50 | Kaczynski, Kevin v Klopper, Joubert | 6-4,2-6,6-3 |
| Afrique du Sud F2, Qualifications Simples | 2017/11/25 06:30 | Klopper, Joubert v Kossek, Daniel | 7-6,6-2 |