Brazilian star Beatriz Haddad Maia has proved too powerful for Anna Tomljanovic, beating the Australian 6-3 6-4 to advance to the WTA quarter-finals in Seoul. Haddad Maia broke Tomljanovic's serve three times on her way to the last eight of the Korea Open, where she will meet Polina Kudermetova.

Ajla Tomljanovic's hopes of adding another trophy were dashed in Korea as Brazilian No.3 Beatriz Haddad Maia claimed the pair's Round of 16 clash.

In the Round of 16 at the Hana Bank Korea Open on Wednesday, Beatriz Haddad Maia (ranked No. 17) takes on Ajla Tomljanovic (No. 122).Tomljanovic defeated Su Jeong Jang 7-6, 4-6, 6-3 on Tuesday in

In the quarterfinals at the Hana Bank Korea Open on Thursday, Polina Kudermetova (ranked No. 163) meets Beatriz Haddad Maia (No. 17). Haddad Maia has won 66.7% of her service games over her last 10 tournaments, and 41.9% of her return games.

No.3 seed Beatriz Haddad Maia held off a late charge by Ajla Tomljanovic from 5-1 down in the third set to 5-4 to reach the Hana Bank Korea Open quarterfinals.