| date | Pair 1 | sets | Pair 2 | set 1 | set 2 | set 3 | 
| --- --.02.18 | Lukasz Kubot / Marcelo Melo |  POL |  BRA | 1 | 2-1 | Nicolas Jarry / Jiri Vesely |  CHI |  CZE | Q | 6-4 | 4-6 | 10-4 | 
| --- --.02.18 | Andres Molteni / Horacio Zeballos |  ARG |  ARG |   | 2-0 | Thomaz Bellucci / Andre Sa |  BRA |  BRA | WC | 6-1 | 6-3 |   | 
| --- --.02.18 | Nikola Mektic / Alexander Peya |  CRO |  AUT |   | 2-0 | Juan Sebastian Cabal / Robert Farah |  COL |  COL | 3 | 7-65 | 7-5 |   | 
| --- --.02.18 | Guido Pella / Diego Schwartzman |  ARG |  ARG |   | 2-1 | Hans Podlipnik-Castillo / Andrei Vasilevski |  CHI |  BLR |   | 6-3 | 2-6 | 10-3 | 
| --- --.02.18 | David Marrero / Fernando Verdasco |  ESP |  ESP | LL | 2-1 | Marcelo Demoliner / Gael Monfils |  BRA |  FRA |   | 1-6 | 6-1 | 10-5 | 
| --- --.02.18 | Santiago Gonzalez / Julio Peralta |  MEX |  CHI | 4 | 2-0 | Fabio Fognini / Marc Lopez |  ITA |  ESP |   | 6-3 | 6-2 |   | 
| --- --.02.18 | Roman Jebavy / Leonardo Mayer |  CZE |  ARG |   | 2-1 | Guillermo Garcia-Lopez / Albert Ramos-Vinolas |  ESP |  ESP |   | 6-2 | 6-75 | 10-7 | 
| --- --.02.18 | Jamie Murray / Bruno Soares |  GBR |  BRA | 2 | 2-0 | Fabiano de Paula / Thiago Monteiro |  BRA |  BRA | WC | 6-3 | 6-1 |   |