World No. 12 Daria Kasatkina can reach the top 10 at the end of the tournament in San Jose.
The Russian will renew her personal best and become No. 9 if she wins the title. Her best ranking right now is No. 10, a place she held at the end of 2018.
If Kasatkina doesn’t win in California, Cori Gauff will make her top-10 debut on Monday.
Today, Kasatkina will compete in the semifinals against No. 4 Paula Badosa, who beat Gauff in the quarterfinals.