Thitikul rolled into the elimination format, defeating Hye-Jin Choi, 5 and 3. Thitikul, who is from Thailand, won all three round-robin matches. She will play Guseva, who advanced out of the same group with Rose Zhang, who has been battling a neck injury.

With the Round of 16 and quarterfinals set for Saturday, only three players from the world’s top 10—No. 3 Jeeno Thitikul, No. 7 Haeran Ryu and No. 10 Angel Yin—remain in the hunt to win the $300,000 first-place prize.