Stadium: Court N5 Round: 25 Ground: Hardcourt outdoor
| ITF M15 Fayetteville | 2021/09/23 15:00 | Patten, Henry v Sander Jong | 7-6,6-2 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2021/09/21 14:00 | Sander Jong v Finn Bass | 1-6,4-6 |
| Fayetteville, AR, Singles Qualifying, M-ITF-USA-31 | 2021/09/20 17:00 | Sander Jong v Parth Aggarwal | 6-0,6-3 |
| UTR Pro Tennis Series Dallas | 2021/09/04 14:30 | Evan Zhu v Sander Jong | 6-4,6-4 |
| UTR Pro Tennis Series Dallas | 2021/09/03 13:00 | Colin Markes v Sander Jong | 1-6,6-4,2-5 |
| UTR Pro Tennis Series Dallas | 2021/09/02 14:30 | Jerry Barton v Sander Jong | 3-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/08/31 14:30 | Jacob Brumm v Sander Jong | 4-6,2-6 |
| UTR Pro Tennis Series Dallas | 2021/08/30 17:30 | Sander Jong v Latinovic, Stefan | 6-2,6-0 |
| 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 |