Kaitlin Quevedo and Teodora Kostovic meet in the quarterfinal at Sao Paulo on Friday. Teodora Kostovic is 4-6 across recent matches. Kaitlin Quevedo is 4-6 across recent matches.

Hold strength tells the story — 63.8% versus 60.7% on first-serve points in Kostovic's favor. Quevedo comes in off a compressed schedule. Little separates them; Kostovic gets the nod on the finest of margins.