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The Washington Nationals dominated the Seattle Mariners 10–1 on June 14 at Nationals Park in a lopsided matchup that exceeded the Vegas total of 10.5 runs. The Nationals' offense proved relentless, collecting 14 hits with 2 home runs and 10 RBIs while posting a .745 OPS, though their .247 batting average underscored some inefficiency within their production. Seattle's pitching staff surrendered all 10 earned runs and 14 hits, posting a bloated 3.69 ERA, while the Mariners' anemic offense managed just 5 hits and zero RBIs in the shutout loss. The visitors struck out five times and drew no walks, reflecting a passive and overmatched approach at the plate. Washington's defense committed two errors but the pitching staff limited damage, striking out five while allowing just one run on five hits. The decisive nature of this contest suggests the Mariners' rotation will need to regroup quickly to avoid further erosion of their run differential in this series.