Chicago Cubs at Washington Nationals: Final Score & Recap

The Chicago Cubs handed the Washington Nationals a 12-6 defeat at Nationals Park on August 12, 2026, a game that was far closer than the final margin suggested through four innings before erupting in the middle frames. The DiamondIQ model entered the night giving Washington a 44 percent chance of winning at home, but by the final out that figure had collapsed to zero as Chicago's offense overwhelmed the Nationals bullpen across a decisive fifth and sixth inning.

The turning point arrived in the top of the fifth, when Alex Bregman launched a home run off Jake Bird that swung win probability 25.5 points in Chicago's favor, the single most impactful play of the game. Washington responded with a Daylen Lile single off David Peterson in the bottom half that added 19.1 points back toward the home side, briefly keeping the Nationals relevant. But the Cubs put the game away in the sixth, stringing together a Seiya Suzuki single off Yovanny Cruz worth 21.4 points of win probability, followed by a Dansby Swanson double off Tom Cosgrove at plus-17.3 points, and then Bregman's second home run of the night, this one off Cruz again, adding another 11.8 points. Chicago tacked on three more runs in the eighth to reach twelve.

Bregman finished as the game's dominant individual, accumulating plus-38.9 percent in WPA and a run-expectancy contribution of plus-6.4, both marks pacing all players on either side. Swanson added plus-22.0 WPA and plus-1.9 RE24, while Lile's plus-18.5 WPA was the lone bright spot among Washington's key performers. On the mound, Javier Assad was the only pitcher to finish in positive WPA territory at plus-2.8, underscoring a night when Chicago's starters and relievers largely kept Washington's offense from mounting anything sustained.