Elsa Baquerizo / Amaranta Navarro, Spain (23) defeated Lidiannis Echeverria / Leila Martinez, Cuba (26) 2-0 (21-15, 21-17).
It was the first FIVB World Tour meeting between the two teams.
In Pool B, Spain is 1-0 and Cuba is 0-1. Also in Pool B, Germany's Chantal Laboureur / Julia Sude is 1-0 while Andrea Galindo / Claudia "Gorda" Galindo of Colombia is 0-1.
Up next for Spain is Colombia while Cuba plays Germany. Both matches are Sunday, 30 July.