(Seattle, WA) -- Jesse Winker knocked in the game-winning run in the 12th inning as the Mariners walked off the Royals 5-4 in Seattle. Winker hit an RBI single to help Seattle complete the sweep over Kansas City. Ty France launched his fifth homer of the season and had three hits for the Mariners, who improved to 10-and-6. Yohan Ramirez picked up his first win in relief. Seattle starts a road series with the Rays tomorrow afternoon.