| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | TB | 
| Wed 11.04.18 | Nikola Mektic / Alexander Peya |  CRO |  AUT | 1 | 2-0 | Amine Ahouda / Y Idmbarek |  MAR |  MAR | WC | 6-0 | 6-2 |   | 
| Tue 10.04.18 | Sander Arends / Adil Shamasdin |  NED |  CAN |   | 2-0 | Malek Jaziri / Lamine Ouahab |  TUN |  ALG | WC | 7-5 | 7-66 |   | 
| Wed 11.04.18 | Marcus Daniell / Dominic Inglot |  NZL |  GBR | 3 | 2-0 | Hans Podlipnik-Castillo / Andrei Vasilevski |  CHI |  BLR |   | 6-3 | 7-64 |   | 
| Wed 11.04.18 | Divij Sharan / Jan-Lennard Struff |  IND |  GER |   | 2-0 | Wesley Koolhof / Artem Sitak |  NED |  NZL |   | 7-63 | 6-3 |   | 
| Wed 11.04.18 | David Marrero / Marcin Matkowski |  ESP |  POL |   | 2-1 | Robert Lindstedt / Franko Skugor |  SWE |  CRO |   | 5-7 | 7-66 | [10-8] | 
| Wed 11.04.18 | James Cerretani / Aisam Ul-Haq Qureshi |  USA |  PAK |   | 2-1 | Robin Haase / Matwe Middelkoop |  NED |  NED | 4 | 6-3 | 3-6 | [10-3] | 
| Wed 11.04.18 | Marcelo Demoliner / Roman Jebavy |  BRA |  CZE |   | 2-1 | Paolo Lorenzi / Mischa Zverev |  ITA |  GER |   | 4-6 | 7-65 | [10-4] | 
| Tue 10.04.18 | Benoit Paire / Edouard Roger-Vasselin |  FRA |  FRA |   | 2-0 | Marc Lopez / Nenad Zimonjic |  ESP |  SRB | 2 | 6-2 | 6-4 |   |