Atherton resident CiCi Bellis feels right at home at Stanford and not because she grew up a few minutes north of the University.
The courts seem to adjust to her game rather than the other way around. It's a comfort level like nowhere else.
It's one way to explain her sudden and permanent turnaround in Bellis' 7-6 (3), 6-2 victory over qualifier Veronica Cepede Royg of Paraguay on Thursday morning.
Down 1-5 in the first set, Bellis put herself into hyper speed and won five straight en route to the tiebreaker win.
The eighth-seeded Bellis won 11 of the final 14 games after falling behind.
She'll play former world No.1 Petra Kvitova in Friday night's quarterfinals.
All eight seeds advanced into the quarterfinals, a rare occurrence.
The second-seeded Kvitova topped Kateryna Bondarenko in another second-round match of the Bank of the West.
No. 4 seed Anastasia Pavlyuchenkova also advanced with a 6-4, 6-0 victory over Alison Riske.
Pavlyuchenkova, who ended her match on consceutive aces, meets sixth-seeded CoCo Vandeweghe, who ousted Stanford grad Nicole Gibbs, 6-0, 6-2.