The win Monday avenged Craybas' upset victory over Williams' younger sister Serena in their third round match Saturday, and sends Venus into the quarterfinals. Meanwhile, second-seeded defending champion Maria Sharapova of Russia never faced a break point as she defeated number-16 Nathalie Dechy of France, 6-4, 6-2.
In other women's action, third-seeded Amelie Mauresmo of France advanced with a 6-4, 6-0 win over number 13 Elena Likhovtseva of Russia, while 12th seeded Frenchwoman Mary Pierce is back in the round-of-eight for the first time in nine years after overpowering Flavia Pannetta of Italy, 6-3, 6-1.
Two other Russians needed three sets to advance. Number eight Nadia Petrova outlasted the Czech Republic's Kveta Peschke 6-7, 7-6, 6-3, while 9th seeded Anastasia Myskina upset number six compatriot Elena Dementieva, 1-6, 7-6, 7-5.
In the men's draw, second-seeded Andy Roddick of the United States knocked off number 15 Guillermo Coria of Argentina, 6-3, 7-6, 6-4. Number-three Lleyton Hewitt of Australia scored a four-set win over American Taylor Dent (6-4, 6-4, 6-7, 6-3), while 12th-seeded Thomas Johansson of Sweden beat Max Mirnyi of Belarus, 6-4, 7-5, 6-4.
Number 18 David Nalbandian of Argentina topped French teen Richard Gasquet 6-4, 7-6, 6-0, but 10th seeded Mario Ancic of Croatia was upset by 27th seeded Spaniard Feliciano Lopez, 6-4, 6-4, 6-2. Number 21 Fernando Gonzalez of Chile defeated Russia's Mikhail Youzhny 7-6, 7-6, 6-3.