Seattle Mariners at Washington Nationals: Final Score & Recap

The Washington Nationals defeated the Seattle Mariners 8-3 at Nationals Park on June 13, 2026, in a game that was relatively competitive through four innings before Washington pulled away decisively. The DiamondIQ model opened with the Nationals holding a 53 percent home win probability, and that estimate climbed steadily to 100 percent by the final out, as the Nationals outpaced Seattle across a 10-hit performance while the Mariners committed two errors against Washington's one.

The game's two biggest swings came in back-to-back halves of the fifth inning. Colt Emerson gave Seattle a brief jolt with a home run off Cade Cavalli that shifted win probability by plus 21.6 percent, representing the Mariners' most meaningful offensive moment. Washington answered almost immediately in the bottom half when Luis García Jr. connected for a home run off Luis Castillo, a plus 21.1 percent swing that erased Seattle's momentum and kept the Nationals firmly in control. The seventh inning further damaged Seattle's chances when Josh Naylor flied out against Richard Lovelady, a minus 12.2 percent probability event that effectively closed the door on any Mariners rally, even as Julio Rodríguez drew a walk in the same frame for a modest plus 7.9 percent counter.

García Jr. finished as the game's most impactful performer, posting a plus 27.1 percent WPA and plus 1.8 RE24, while Emerson led Seattle's contributors with plus 15.7 percent WPA and plus 1.2 RE24. José Tena added plus 11.9 percent WPA and plus 1.5 RE24 for Washington. On the mound, Richard Lovelady paced the Nationals' bullpen with a plus 6.3 percent WPA, followed by PJ Poulin at plus 3.5 percent and Gabe Speier at plus 2.9 percent, as Washington's relief corps locked down a three-run seventh-inning cushion through the game's conclusion.