HOUSTON (Interstat) — Cal Raleigh hit his 57th home run to break Ken Griffey Jr.’s single-season franchise record and the Seattle Mariners held off the Houston Astros 6-4 on Saturday night at Daikin Park.

George Kirby (10-7) earned the win, allowing five hits and striking out seven over six scoreless innings. The Mariners built a 6-0 lead before Jeremy Peña hit a grand slam for Houston in the seventh inning. Andrés Muñoz worked a scoreless ninth for his 37th save, escaping a jam by inducing a game-ending double play.

The victory gives Seattle an 86-69 record and a two-game lead over the 84-71 Astros in the AL West. Framber Valdez (12-11) took the loss for Houston. The announced attendance was 42,065.