By Ros Satar
The pair met last year in the first round of the French Open, with Robson winning that encounter in straight sets.
Cabeza Candela never really troubled the Brit, who took the match in 74 minutes.
Robson defended all seven of the break points she faced in the first set, and five double-faults will not have helped.
The second set was more resolute for Robson, and she now faces her one of best friends on tour, Canada’s Eugenie Bouchard, who came through the qualifying rounds.