The WTA Guadalajara Open presented by Santander reaches the quarterfinals on Thursday, with Sloane Stephens and Peyton Stearns both positioned in the last eight of the main draw. A scheduled 4:00 AM UTC start will bring the all-American quarterfinal to Guadalajara, Mexico. Both players advance from earlier rounds in the tournament, and the quarterfinal matchup carries the competition’s next phase. The scheduled start time marks the next stage of play in Guadalajara.