The Chicago Cubs defeated the Chicago White Sox on Tuesday, Aug. 18, 2026, at Wrigley Field [1].
The victory allowed the Cubs to clinch a series win against their crosstown rivals in a high-stakes regular-season matchup [2].
Pete Crow-Armstrong provided the decisive blow for the Cubs by hitting the first walk-off home run of his career [3]. The game reached extra innings before Crow-Armstrong secured the win [3].
Reports on the final score of the contest differ between major sports outlets. Sportsnet said the Cubs won 7-5 [3], while ESPN said the final score was 4-3 [1].
Prior to the game, predictive models attempted to forecast the outcome of the rivalry. A SportsLine model utilized 10,000 simulations to generate its prediction for the Tuesday matchup [4].
The game began at 8 p.m. ET [2]. While some reports mentioned a Monday night timeframe, official records from ESPN and other outlets confirm the game took place on Tuesday, Aug. 18, 2026 [1].
“Pete Crow-Armstrong hit his first career walk-off home run.”
The result reinforces the Cubs' position in the standings while highlighting the emergence of Pete Crow-Armstrong as a clutch performer. The discrepancy in reported scores and dates between major networks indicates a lack of synchronization in real-time data reporting for this specific matchup.


