The Houston Astros blanked the Cleveland Guardians 2-0 on April 22, 2026, at Progressive Field, scoring all of their runs in the first inning and never relinquishing the lead. The DiamondIQ model's estimate had Cleveland entering with a 69 percent home win probability, but that figure collapsed to zero percent by game's end as Houston's pitching staff held the Guardians to five hits across nine innings.
The game turned decisively in its opening frames. Houston plated both of its runs in the top of the first, a half-inning in which Isaac Paredes recorded a strikeout against Tanner Bibee that added 8.2 percent to the Astros' win probability. Cleveland's best chances to respond evaporated quickly. George Valera's flyout to end the bottom of the first cost the Guardians 10.5 percent in win probability off Peter Lambert, and the damage deepened in the second when Bo Naylor hit into a strikeout double play, the single costliest play of the game at negative 13.7 percent for Cleveland's chances. Christian Vázquez contributed a groundout in the top of the second that added another 8.0 percent for Houston, and the Guardians never recovered, with Brayan Rocchio's flyout in the ninth adding a final 8.1 percent to Houston's win probability as the game concluded.
Peter Lambert was the dominant individual force of the contest, finishing with a staggering plus-49.5 percent in pitcher WPA, the clearest reflection of how thoroughly he neutralized a Cleveland lineup that had entered as heavy favorites. AJ Blubaugh added 8.8 percent and Steven Okert contributed 5.9 percent in relief, completing the shutout. Among batters, Christian Vázquez led Houston with plus-7.2 percent WPA, while Cleveland's Daniel Schneemann posted plus-4.3 percent and Chase DeLauter added plus-3.7 percent, though neither translated into any runs for the home side.
Analysis generated by DiamondIQ's model.