Chicago CubsOpen full analysisVSSeattle MarinersOpen full analysis

The Seattle Mariners defeated the Chicago Cubs 6-5 on August 21, 2026, at T-Mobile Park, overcoming a sizable gap in offensive production. Chicago collected 12 hits and hit four home runs, but every Cubs RBI came via those five total runs, while Seattle generated six RBI from eight hits and one homer. The Mariners also drew four walks, twice Chicago’s total, helping them create enough scoring opportunities despite posting fewer hits and less power. Seattle’s pitching staff struck out 11 and walked two, although it allowed five earned runs and finished the game with a 4.01 ERA figure. The Cubs’ staff recorded seven strikeouts, issued four walks, and allowed four earned runs, with Seattle’s additional scoring aided by defensive trouble: the Mariners committed two errors, while no Chicago error total was provided. The clearest trend was Chicago’s inefficient power output, as four homers and a .757 OPS produced only five runs in a one-run loss. Seattle will need cleaner defense as it evaluates its rotation and run differential.