The Colorado Rockies routed the Houston Astros 9-1 at Coors Field on April 8, 2026, a result that pushed the DiamondIQ model's estimate of a Colorado win from 54% before first pitch to a virtual certainty of 100% by game's end. Houston managed just one run on eight hits while committing no errors, but the Rockies' offense overwhelmed Astros starter AJ Blubaugh with a five-run second inning that effectively decided the contest.
The second inning was the unambiguous turning point, with five of the game's most consequential plays by win-probability impact all occurring in that frame against Blubaugh. Troy Johnston was the central figure, contributing a double worth 4.5 percentage points of win probability and then a groundout that, in context, added another 8.3 points as runs continued to cross the plate — Johnston finished as the game's top performer by WPA at plus-12.4 percent with a RE24 of plus-0.6. Edouard Julien followed with a single that shifted the model another 6.2 points in Colorado's favor, and TJ Rumfield drew a walk that moved the needle an additional 5.6 points, leaving Blubaugh with nowhere to turn. Julien ended the game second among position players at plus-6.9 percent WPA and a RE24 of plus-1.0. Houston's lone bright spot came in the top of the second, when Brice Matthews singled off Michael Lorenzen to produce a 4.7-point swing for the Astros, finishing with a plus-5.6 WPA and plus-0.9 RE24 on the day.
On the pitching side, Michael Lorenzen led Colorado's staff with a plus-3.3 percent WPA contribution, followed by Zach Agnos at plus-2.2 percent. The Rockies added single runs in the fourth, sixth, and eighth innings to build the final margin to eight, and Colorado's pitchers combined to hold Houston to one run across nine innings while the offense produced ten hits without committing an error.
Analysis generated by DiamondIQ's model.