Ben Williamson had an RBI double in the sixth inning, Luis Castillo tossed seven innings, and the Seattle Mariners beat the Pittsburgh Pirates 1-0 on Saturday night.

Two Spencer Horwitz singles were all that saved Pittsburgh from a no-hitter. Mariners starter Luis Castillo carried a perfect ...

The Mariners were still able to improve to 47-42 on the year and sit seven games back of the Houston Astros in the AL West.