The Los Angeles Angels defeated the Kansas City Royals 5-4 on March 2, 2026, at Tempe Diablo Stadium in a game that was decided in the final two half-innings after a largely quiet middle stretch. The DiamondIQ model entered the day giving the Angels a 54 percent home win probability, and by the final out that figure had climbed to 100 percent, with the decisive action concentrated almost entirely in the ninth inning.
Kansas City threatened first in the top of the ninth, with Carson Roccaforte delivering a single off José Fermin that shifted win probability by plus-43.9 percent in the Royals' favor, the single largest swing of the game. That hit helped Kansas City score twice to tie or threaten the lead heading into the home half, but Spencer Nivens' strikeout against Fermin carried a minus-10.9 percent swing and capped the Royals' rally. Los Angeles answered immediately in the bottom of the ninth against Hunter Patteson. Trey Mancini's double added plus-20.5 percent to the Angels' win probability, setting the table for the game-winning blow. Yolmer Sánchez then singled to push the decisive run across, a hit worth plus-35.9 percent in win probability terms, before Raudi Rodriguez's fielder's choice out ended the threat and locked in the result at minus-20.5 percent for the Royals.
Roccaforte finished as the game's top performer by the DiamondIQ model's estimate, posting a plus-51.0 percent cumulative WPA and plus-1.6 RE24, while Sánchez led all Angels hitters at plus-37.4 percent WPA and plus-1.0 RE24. Mancini contributed plus-19.0 percent WPA and plus-0.5 RE24 in his brief but critical role. On the mound, Jack Kochanowicz was the Angels' most effective arm by WPA at plus-18.1 percent, followed by Chase Silseth at plus-15.3 percent and Nick Mears at plus-3.5 percent, as Los Angeles combined for 11 hits against Kansas City's eight across a game that stayed close until the very end.
Analysis generated by DiamondIQ's model.