Seattle Mariners at Kansas City Royals: Final Score & Recap

The Seattle Mariners held off the Kansas City Royals 6-5 in ten innings on June 9, 2024 at Kauffman Stadium, erasing what had been a comfortable-looking home advantage for Kansas City. The DiamondIQ model opened with a 58 percent pre-game win probability favoring the Royals, but that number closed at zero as Seattle claimed the victory in extra innings.

The decisive moment before the extras arrived in the bottom of the ninth, when MJ Melendez connected on a home run off Mike Baumann that swung win probability 49.4 percent in Kansas City's favor, briefly making the Royals the heavy favorite and sending the game to a tenth inning. That blow proved to be the Royals' last significant gasp. In the top of the tenth, Julio Rodríguez delivered a single off James McArthur worth a 29.5 percent swing, and Cal Raleigh followed with a single of his own that added another 25.7 percent, pushing Seattle into a commanding position. J.P. Crawford's strikeout against McArthur briefly cost the Mariners 18.0 percent in win probability, but Seattle still plated three runs in the frame. In the bottom of the tenth, Vinnie Pasquantino grounded out against Tayler Saucedo in a moment that swung 27.0 percent toward Seattle, effectively sealing the outcome.

On the individual ledger, Melendez finished as the game's most impactful batter despite being on the losing side, posting a cumulative WPA of plus-40.6 percent and an RE24 of plus-1.2. Raleigh led Seattle's position players with a plus-26.2 percent WPA and plus-1.1 RE24, while Rodríguez contributed a plus-25.6 percent WPA. On the mound, George Kirby was the most valuable arm by the DiamondIQ model's estimate, generating plus-34.7 percent in win probability, with Cole Ragans adding plus-18.4 percent for Kansas City and Andrés Muñoz contributing plus-13.3 percent out of Seattle's bullpen.