Pittsburgh Pirates at Houston Astros: Final Score & Recap

The Houston Astros erased a four-run deficit to defeat the Pittsburgh Pirates 11-9 at Daikin Park on June 3, 2026, in a game that saw the DiamondIQ model's estimate of a Houston win climb from 45 percent before first pitch all the way to 100 percent by the final out. Pittsburgh built its advantage through the middle innings, most notably when Henry Davis launched a home run off Spencer Arrighetti in the top of the fourth that swung win probability 36.7 points in Pittsburgh's favor, and Nick Gonzales added another home run off Nate Pearson in the top of the seventh for a further 13.3-point swing. Through seven innings the Pirates held what appeared to be a commanding position, but Houston answered with a six-run eighth inning that entirely reversed the game's trajectory.

The bottom of the eighth proved decisive and was constructed almost entirely against Pirates reliever Gregory Soto. Cam Smith's triple opened the sequence and represented the single largest positive swing for Houston in the inning, adding 32.5 points of win probability. Isaac Paredes followed with a walk that added another 31.4 points, and Christian Walker singled to push the advantage further by 17.3 points. Across the full game, Paredes finished as the top performer by WPA at plus-41.7 percent with a RE24 of plus-3.2, while Smith posted plus-38.3 percent WPA and plus-2.3 RE24. Davis led Pittsburgh's contributors at plus-31.0 percent WPA and plus-2.5 RE24 despite his team's loss.

On the pitching side, Josh Hader led Houston's relievers with a WPA of plus-6.3 percent, followed by Yohan Ramírez at plus-4.0 and Bryan King at plus-1.6. Pittsburgh finished with three errors against none for Houston, a disparity that factored into the game's final shape. The Pirates out-hit the Astros 12 to 13 across the contest but were undone by the defensive miscues and an eighth inning that swung the DiamondIQ model's estimate decisively and permanently toward the home side.