Justin Smoak's one-out single in the bottom of the ninth scored pinch-runner Munenori Kawasaki from second when the throw home hit Kawasaki in the back, giving the Mariners a 2-1 win over the San Francisco Giants on Sunday.

Sergio Romo (2-1) allowed back-to-back singles to Kyle Seager and Jesus Montero to open the ninth before being replaced. After Michael Saunders failed to bunt the runners over, Smoak lined a single to left off Javier Lopez.

Tom Wilhelmsen (3-1) pitched a scoreless ninth.

San Francisco starter Madison Bumgarner allowed three hits in eight innings. He struck out four and walked one.

Felix Hernandez threw seven innings, allowed one run, struck out seven and walked one.