Houston Astros at San Francisco Giants: Final Score & Recap

The Houston Astros edged the San Francisco Giants 2-1 on August 12, 2026, at Oracle Park, completing a road victory that the DiamondIQ model's estimate gave little chance of materializing before first pitch, with San Francisco entering the night as a 56% favorite. Houston manufactured both of its runs in the seventh and eighth innings, breaking a scoreless deadlock in a game that stayed tightly contested until the final out.

The decisive sequence began in the top of the seventh, when a fielding error on Sam Hentges swung win probability 13.2 points in Houston's favor, putting the Astros on the board. Taylor Trammell extended that advantage in the eighth with a triple off Keaton Winn that shifted the win-probability needle another 16.2 points toward Houston, the single largest positive batting play of the night for either offense. San Francisco mounted a threat in the bottom of the eighth, but Osleivis Basabe's strikeout against Bryan Abreu erased 12.9 points of Giants probability, effectively halting the comeback before it started. In the ninth, Josh Hader induced a groundout from Jung Hoo Lee that, by the DiamondIQ model's estimate, represented the game's largest single-play swing at plus-31.6 points, securing the final out and completing the Astros' narrow win.

On the mound, Adrian Houser was the primary force behind Houston's outcome, contributing 35.1 points of win probability added and benefiting from a double-play groundout by Isaac Paredes in the fourth that erased a Giants opportunity worth 12.3 points. Bryan Abreu added 23.3 WPA points out of the bullpen, and Steven Okert contributed 10.8. Offensively, Jung Hoo Lee led all batters at plus-23.0 WPA despite a negative RE24 of minus-1.3, while Trammell's plus-12.3 WPA on just 0.5 RE24 reflected how situationally critical his eighth-inning triple proved in a game where Houston managed only four hits against San Francisco's five.