The Mariners have dominated the Royals, as they should. They have won four of five meetings this season including four straight. They also have a 7-3 advantage over the last ten games between the two. Seattle has won Castillo’s last five starts by an average margin of 4.8 runs per game. In Seattle has nine wins over their last ten games, and only two came by just one run. Kansas City’s relievers have posted a 4.02 ERA over the last ten days and 31.1 innings pitched. Lay the -1.5 with Seattle.

Play on Seattle minus 1.5 runs