Van Dijk, hand picked by Lane Beachley herself, took advantage of the perfect four-foot swell on Wednesday to beat American Courtney Conlogue at the world's richest women's surfing event.
The youngster, who stunned Fitzgibbons in the first round on Tuesday, recorded the highest wave score of the day posting an 8.5 to go through to the quarters and set up a re-match with the top
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ranked 20-year-old who's fresh from breakthrough wins at Bells Beach and Taranaki.
Tyler Wright, also scoring an 8.5 wave, scored the highest for the day, an impressive 15.50 total, to beat fellow Australian Chelsea Hedges and set up a clash with reigning world champion Stephanie Gilmore in the quarters.
Four-time world title holder Gilmore on Monday got off to the perfect start in her defence of the Beachley Classic, posting a wave score of 9.85 in ideal six-foot swell to cruise comfortably
through to the quarters.
Having struggled in 2011, Gilmore needs a big result at Dee Why to come back into the world title race with victory propelling her back into the top three.
Meanwhile, Melanie Bartels will contest an all-Hawaiian quarter-final, beating Kiwi Paige Hareb to face world No.2 Carissa Moore.
And Peru's Sofia Mulanovich beat Coco Ho to go through to the quarters where she will meet Brazilian Silvana Lima.
