Stadium: Court 6 Round: 25 Ground: Hardcourt outdoor
| ATP Rotterdam MD | 2019/02/13 11:55 | Koolhof/Melzer v Klaasen/Venus | 6-4,6-4 |
| Australian Open MD | 2019/01/22 02:35 | Mayer/Sousa v Klaasen/Venus | 6-4,7-6 |
| Australian Open MD | 2019/01/20 05:10 | Demoliner/Nielsen v Klaasen/Venus | 3-6,1-6 |
| Australian Open MD | 2019/01/19 00:00 | Daniell/Koolhof v Klaasen/Venus | 6-7,3-6 |
| Australian Open MD | 2019/01/16 02:00 | Klahn/Kukushkin v Klaasen/Venus | 6-4,4-6,3-6 |
| ATP Auckland MD | 2019/01/11 23:00 | Mclachlan/Struff v Klaasen/Venus | 6-3,6-4 |
| ATP Auckland MD | 2019/01/11 05:45 | Klaasen/Venus v Bryan/Bryan | 6-4,6-1 |
| ATP Auckland MD | 2019/01/10 03:00 | Pella/Sousa v Klaasen/Venus | 5-7,3-6 |