Stadium: Pista 4 Round: 27 Ground: Clay
| ATP - Madrid - Doubles Hommes | 2018/05/10 10:00 | Kontinen H / Peers J v Mektic N / Peya A | 4-6,4-6 |
| ATP - Madrid - Doubles Hommes | 2018/05/08 11:55 | Anderson K / Mirnyi M v Mektic N / Peya A | 4-6,6-3,4-10 |
| ATP - Munich - Doubles Hommes | 2018/05/06 09:30 | Mektic N / Peya A v Dodig I / Ram R | 3-6,5-7 |
| ATP - Munich - Doubles Hommes | 2018/05/04 14:00 | Kubot L / Melo M v Mektic N / Peya A | 6-2,6-7,5-10 |
| ATP - Munich - Doubles Hommes | 2018/05/02 10:45 | Mektic N / Peya A v Krawietz K / Marterer M | 7-5,6-4 |
| ATP - Munich - Doubles Hommes | 2018/05/01 11:10 | Mektic N / Peya A v Bachinger/Hanfmann | 6-2,6-3 |
| Budapest, Hungary, Doubles | 2018/04/25 09:00 | Mektic N / Peya A v Koolhof W / Sitak A | 5-7,7-6,7-10 |
| ATP - Marrakech - Doubles Hommes | 2018/04/14 16:30 | Mektic N / Peya A v Paire B / Roger-Vasselin E | 7-5,3-6,10-7 |
| ATP - Madrid - Doubles Hommes | 2018/05/10 11:25 | Klaasen R / Venus M v Bopanna R / Roger-Vasselin E | 4-6,7-6,10-5 |
| ATP - Madrid - Doubles Hommes | 2018/05/08 19:45 | Klaasen R / Venus M v Lopez/Lopez | 3-6,7-5,10-8 |
| ATP - Estoril - Doubles Hommes | 2018/05/01 11:00 | de Minaur A / Hewitt L v Klaasen R / Venus M | 6-4,6-4 |
| ATP - Monte-Carlo - Doubles Hommes | 2018/04/20 09:00 | Bolelli S / Fognini F v Klaasen R / Venus M | 7-6,6-3 |
| ATP - Monte-Carlo - Doubles Hommes | 2018/04/15 12:00 | Pouille L / Rublev A v Klaasen R / Venus M | 1-6,1-6 |
| ATP - Miami - Doubles Hommes | 2018/03/28 21:00 | Klaasen R / Venus M v Bryan B / Bryan M | 6-3,6-7,8-10 |
| ATP - Miami - Doubles Hommes | 2018/03/26 17:15 | Klaasen R / Venus M v Isner J / Young D | 7-5,6-3 |
| ATP - Miami - Doubles Hommes | 2018/03/24 15:00 | Dodig I / Ram R v Klaasen R / Venus M | 6-7,4-6 |