Stadium: Court 2 Round: 26 Ground: Grass
| ATP Estoril MD | 2018/05/01 11:00 | De Minaur/Hewitt v Klaasen/Venus | 6-4,6-4 |
| ATP Monte Carlo MD | 2018/04/20 09:00 | Bolelli/Fognini v Klaasen/Venus | 7-6,6-3 |
| ATP Monte Carlo MD | 2018/04/15 12:00 | Pouille/Rublev v Klaasen/Venus | 1-6,1-6 |
| ATP Miami MD | 2018/03/28 21:00 | Klaasen/Venus v Bryan/Bryan | 6-3,6-7,8-10 |
| ATP Miami MD | 2018/03/26 17:15 | Klaasen/Venus v Isner/Young | 7-5,6-3 |
| ATP Miami MD | 2018/03/24 15:00 | Dodig/Ram v Klaasen/Venus | 6-7,4-6 |
| ATP Indian Wells MD | 2018/03/13 04:05 | Klaasen/Venus v Dodig/Ram | 2-6,2-6 |
| ATP Indian Wells MD | 2018/03/11 03:15 | Klaasen/Venus v Cabal/Farah | 4-6,6-0,10-5 |