Joaquin Andujar gave up 12 singles to win his major-league leading 15th game last night and help the St. Louis Cardinals defeat the visiting San Francisco Giants, 6-1.

Vince Coleman, Ozzie Smith and Terry Pendleton each had three hits to support Andujar (15-3), who pitched his third consecutive complete game. Andujar, who has nine complete games for the season, walked two and struck out two.

"He wasn't on tonight but he got us when he had to," Giants Manager Jim Davenport said. "That's the mark of a winning pitcher . . . . We had him on the ropes, but we couldn't put him away."

The Cardinals got 14 hits off Dave LaPoint (3-8) and three relievers.

They took a 1-0 lead in the first when Coleman tripled and scored on Willie McGee's grounder. Pendleton singled in the second and scored on a double by Smith. Tom Nieto added a two-run single in the fifth, Andujar had an RBI single in the sixth and Tito Landrum had an RBI single in the seventh.

Andujar lost his shutout in the eighth, loading the bases on singles and walking pinch hitter Rob Deer on a 3-2 count to force home the run.

"I wanted the shutout; you know I wanted it," Andujar said. "I had lousy stuff. I guess I was just lucky."