Ken Griffey's two-run single with two out in the ninth inning gave New York a sweep of the three-game series with visiting California.
Roy Smalley opened the ninth by drawing a walk off Geoff Zahn (8-9). Bert Campaneris grounded into a forceout and pinch hitter Don Mattingly flied to right. When Willie Randolph's ground ball was booted by second baseman Bobby Grich into short center field, Campaneris raced to third and Randolph took second. Griffey followed with a line single down the right field line to score both runners.
"I get a hop like that out at second base and there's nothing I can do with that ball," said Grich of his error. "The ball hit me in the ankle. I expected it about waist high and it comes in the ninth inning with two out. That's about the way things have been going for us."
California had taken a 1-0 lead in the top of the ninth. Daryl Sconiers opened with a triple, only the third hit allowed by the Yankees' Dave Righetti. Rich Gossage (11-4) relieved Righetti and struck out pinch hitter Rod Carew before DeCinces bounced a single to left field.
California was hitless before Ron Jackson opened the sixth with a single off Righetti's glove. The only other hit allowed by the Yankees' left-hander was Steve Lubratich's eighth-inning double.