The Chicago White Sox defeated their crosstown rivals, the Cubs, 9-8 in a dramatic 10-inning game at Guaranteed Rate Field, fueled by a walk-off two-run home run from catcher Edgar Quero. The win capped a tense weekend series in which the White Sox took two of three games, marking a symbolic step forward in their rebuild after three consecutive 100-loss seasons. Quero’s homer came off Cubs reliever Ryan Rolison and sent the sellout crowd into celebration, highlighting a growing team confidence.

The White Sox showcased their power throughout the series, hitting 10 home runs total and bringing their season count to 64—second most in Major League Baseball behind the Yankees. Center fielder Tristan Peters hit his first career homer in the eighth inning to break a 4-4 tie, only for the Cubs to answer in the ninth with a three-run shot from Michael Conforto. The Cubs loaded the bases in the 10th but failed to score, setting up Quero’s decisive moment.

Chicago Cubs reliever Phil Maton struggled again, giving up Peters’ homer and seeing his ERA rise to 9.49 despite a $14.5 million contract signed in the offseason. Manager Craig Counsell acknowledged the need for improvement, while White Sox manager Will Venable emphasized how each win strengthens team belief. With the rivalry series now in the books, the teams will meet again at Wrigley Field in August.