Stadium: Court 5 Round: 26 Ground: Grass
| ATP Halle MD | 2018/06/20 15:30 | Klaasen/Venus v Puetz/Struff | 4-6,6-7 |
| ATP Hertogenbosch MD | 2018/06/16 13:00 | Inglot/Skugor v Klaasen/Venus | 7-6,7-5 |
| ATP Hertogenbosch MD | 2018/06/15 16:00 | Sharan/Sitak v Klaasen/Venus | 3-6,2-6 |
| ATP Hertogenbosch MD | 2018/06/15 12:55 | Ebden/Jaziri v Klaasen/Venus | 6-2,4-6,4-10 |
| ATP Hertogenbosch MD | 2018/06/13 11:15 | Bolt/Hewitt v Klaasen/Venus | 5-7,5-7 |
| French Open MD | 2018/06/02 09:00 | Klaasen/Venus v Mektic/Peya | 6-7,6-7 |
| French Open MD | 2018/05/31 13:10 | Klaasen/Venus v Eysseric/Nys | 7-6,6-3 |
| French Open MD | 2018/05/29 09:00 | Klaasen/Venus v Denolly/Muller | 6-3,6-3 |