Venus next faces Italian 15th seed Francesca Schiavone, who crushed Austria's Sybille Bammer 6-2 6-1.
CNN: Serena survives epic in Madrid opener
2.
Top seed Nadia Petrova then beat Austria's Sybille Bammer 7-6 (7-4) 6-1.
BBC: SPORT | Tennis | Petrova and Golovin reach final
3.
Danish second seed Caroline Wozniacki eased into the third round with a 51-minute 6-0 6-2 victory over Austria's Sybille Bammer, who hit 28 unforced errors.
BBC: Kim Clijsters through in rain-hit Cincinnati Open