Iga Swiaatek defense champion won her place in the Indian quarter-finals with Carolina Moghova 6-1 6-1.
Swiaatek from Poland progresses to become the first woman to win the California championship three times, after she closed the title in 2022.
The Swiaatek match against Muchova was delayed for about an hour due to the rain, but it took only 57 minutes to secure a dominant victory in which she did not face a single break.
The second number of the world has declined only six games on its way to reach the past eight and will face either the eighth seed in China Zheng Qinwen or 18th Marta Kostyuk from next Ukraine.
“Sometimes the matches can be very strange,” said Symick. “It is enough for a single player to feel perfect and the other feels satisfied. Then suddenly the difference is much larger than it is usually.
“It is tennis. Things like this can happen. I definitely used my chance and used my chance. This is not easy, but I can imagine it looks so.”
The 23 -year -old Grand Slam champion is the first woman to reach the quarter -finals in Indian Wales for four consecutive years since Karolina Pliskova, who has achieved this feat between 2016 and 2019.