Cleveland Guardians at Kansas City Royals: Final Score & Recap

The Kansas City Royals defeated the Cleveland Guardians 5-3 at Kauffman Stadium on May 5, 2026, with the DiamondIQ model's estimate of a home win moving from 53% before first pitch to a certainty at 100% by game's end. The scoring was concentrated in the fourth inning, where the game effectively changed hands. Cleveland struck first in the top half when Rhys Hoskins connected on a home run off Stephen Kolek, a swing that shifted win probability by plus 28.7 points in the Guardians' favor and represented the single largest win-probability swing of the game. Kansas City answered immediately in the bottom of the fourth, as Michael Massey took Gavin Williams deep to claw back 18.9 points of win probability, and the Royals plated two runs in the frame to swing momentum decisively toward the home side.

Kansas City extended its lead in the bottom of the sixth when Isaac Collins hit a solo home run off Gavin Williams, a plus-12.8-point win-probability swing that put the outcome largely out of reach. Williams absorbed both home run balls in a difficult outing. Cleveland's best chances to respond were erased by two of the game's costlier outs: Travis Bazzana grounded out in the second inning against Kolek at minus 6.4 points of win probability, and Steven Kwan lined out in the eighth against Daniel Lynch IV at minus 5.3 points, preventing any meaningful late rally.

The three most impactful batters by the DiamondIQ model's accounting were Hoskins at plus 26.3 win-probability points and plus 2.3 RE24, Collins at plus 19.7 and plus 1.8, and Massey at plus 18.0 and plus 1.4. On the pitching side, Daniel Lynch IV led Kansas City's bullpen contributors at plus 8.1 win-probability points, followed by Nick Mears at plus 7.2 and Lucas Erceg at plus 6.3, as the Royals' relief corps preserved a clean final line of five runs on eight hits and no errors for either side.