Kansas City Royals at St. Louis Cardinals: Final Score & Recap

The St. Louis Cardinals defeated the Kansas City Royals 4-2 at Busch Stadium on May 16, 2026, extending their advantage in the DiamondIQ model's pre-game win probability from 71 percent to a final certainty. The game remained tight through four scoreless innings before a decisive fifth changed the complexion entirely. St. Louis broke through first in the bottom half when Nathan Church doubled off Noah Cameron, a swing that added 11.3 percent to the Cardinals' win probability. Victor Scott II followed with a fielders choice that pushed the Cardinals' advantage further, adding another 8.9 percent. Kansas City had managed a brief counterpunch in the top of the fifth when Vinnie Pasquantino singled off Kyle Leahy to account for a +11.2 percent swing for the Royals, but St. Louis ultimately scored twice in the inning to Kansas City's one, and the Cardinals added an insurance run in the bottom of the eighth to push the final to 4-2.

The Cardinals' pitching staff methodically shut down any Royals comeback attempt. Kyle Leahy led the staff with a WPA contribution of +8.3 percent, while Justin Bruihl added +8.1 percent and Gordon Graceffo contributed +7.2 percent. Pasquantino's productive fifth-inning single represented Kansas City's clearest path to life, but a Vinnie Pasquantino flyout in the third that cost the Royals 8.4 percent and Kyle Isbel's ninth-inning double-play grounder off George Soriano, which shed another 7.1 percent, underscored how consistently Kansas City's offensive opportunities dissolved. Victor Scott II led all position players by WPA at +12.4 percent with a RE24 of +1.5, while Church's +11.3 percent and +1.2 RE24 made him the other offensive catalyst in a Cardinals victory that the DiamondIQ model had largely anticipated from the opening pitch.