STANFORD, Calif. — Karolina Pliskova of the Czech republic advanced to the Bank of the West Classic semifinals Friday, beating Croatia's Ajla Tomljanovic 6-2, 6-4.
The 11th-ranked Pliskova will make her debut in the top 10 when the new rankings are released Monday.
Only world No. 1 Serena Williams, who withdrew from Stanford with an elbow injury, has more wins (40-1) than Pliskova (38-14) this year and the fourth-seeded Czech player snapped a tie with Williams for most aces on the tour. Pliskova has 361 to Serena's 352.
On Saturday, Pliskova will meet the winner of a later match between No.