Stadium: Court 1 Round: 27 Ground: Hardcourt indoor
| ATP Marseille MD | 2018/02/20 18:40 | Klaasen/Venus v Fabbiano/Travaglia | 6-3,6-3 |
| ATP Rotterdam MD | 2018/02/12 10:00 | Kubot/Melo v Klaasen/Venus | 7-6,7-5 |
| Australian Open MD | 2018/01/18 00:00 | Lipsky/Marrero v Klaasen/Venus | 7-6,7-6 |
| ATP Auckland MD | 2018/01/12 02:00 | Mirnyi/Oswald v Klaasen/Venus | 7-6,7-6 |
| ATP Auckland MD | 2018/01/11 07:55 | Matkowski/Qureshi v Klaasen/Venus | 6-4,4-6,4-10 |
| ATP Auckland MD | 2018/01/09 08:30 | Koolhof/Sitak v Klaasen/Venus | 1-6,7-6,7-10 |
| ATP Marseille MD | 2018/02/20 14:05 | Mergea/Nestor v Dzumhur/Sancic | 7-6,6-4 |