Braxton Garrett and three relievers combined on a three-hitter, and the Miami Marlins scored an unearned run in the eighth inning on a Jon Berti single to beat the San Francisco Giants 1-0 Saturday. Miami (24-22) improved to 15-2 in one-run games but has been outscored 211-159 this season. The Marlins won for the fifth time in six games and stopped the Giants' four-game winning streak.