Luis Castillo dominated under the Seattle lights Friday night, carving through Houston's lineup with surgical precision as the Mariners cruised to a 6-1 victory. The All-Star right-hander silenced the Astros over 6.2 masterful innings, allowing just three hits while striking out seven—including a trio of punchouts against Jose Altuve—before handing a shutout to the bullpen. Seattle's offense made the most of their opportunities, with Mitch Garver's two-run homer in the sixth breaking the game open and Randy Arozarena adding a solo shot in the seventh to cap the scoring barrage.

The Astros' bats never found their rhythm against Castillo's devastating changeup, managing just one run on Isaac Paredes' RBI single in the ninth when the outcome was already decided. Houston's bullpen unraveled late, with Hector Neris walking two batters and surrendering two runs in just two-thirds of an inning. The win keeps Seattle's playoff push on track while Houston's offensive struggles continue—their stars Altuve, Christian Walker, and Yainer Diaz combined to go 0-for-12 with five strikeouts on the night.