Pittsburgh Pirates at Arizona Diamondbacks: Final Score & Recap

The Arizona Diamondbacks handled the Pittsburgh Pirates with authority on May 5, 2026, at Chase Field, winning 9-0 in a game that was never particularly close after the first pitch. The DiamondIQ model's estimate opened with a modest 51 percent home win probability, reflecting a near-even contest on paper, but by the final out that figure had climbed to 100 percent as Arizona's offense and pitching combined to shut Pittsburgh out entirely on just two hits.

The decisive sequence came in the bottom of the sixth inning, which accounted for five of Arizona's nine runs and represented the game's clearest inflection point. Gabriel Moreno's double off Yohan Ramírez was the single most impactful play of the contest, adding 8.8 percent to Arizona's win probability, and Geraldo Perdomo followed with another double off the same pitcher, contributing an additional 5.5 percent swing. Perdomo finished the game with a cumulative WPA of plus-6.4 percent and a RE24 of plus-1.4, while Moreno's WPA of plus-8.8 percent led all position players. Nolan Arenado also factored prominently, finishing with a WPA of plus-6.1 percent and an RE24 of plus-1.2. On Pittsburgh's side, Joey Bart's groundout in the second inning off Eduardo Rodriguez represented the game's sharpest negative swing for the visiting club, costing the Pirates 7.8 percent in win probability.

The most dominant individual performance of the night belonged to Rodriguez on the mound. The Diamondbacks starter accumulated a staggering plus-31.7 percent WPA, single-handedly anchoring a game Arizona controlled from the early innings. Pittsburgh's Bryan Reynolds drew a walk off Rodriguez in the fourth that briefly nudged the Pirates' outlook 4.4 percent in their direction, but it amounted to little as Arizona added two more runs in the eighth to close out the shutout. The model leans toward crediting Rodriguez's outing as the structural backbone of what became a thoroughly one-sided result.