FUKUOKA — The submarine was elusive and the Hawks had no idea how to sink it.

Well, until the ninth inning. By then it was too late.

Submarine pitcher Shunsuke Watanabe worked eight-plus effective innings and helped the Marines stave off elimination with a 4-2 victory over Fukuoka Softbank in Game 4 of the Pacific League Climax Series final stage on Sunday afternoon.