Logan Forsythe led off the bottom of the ninth inning with a home run off Steve Edlefsen as the San Diego Padres snapped the Giants’ four-game winning streak with a 6-5 victory Tuesday at Petco Park.
The Giants loaded the bases in the top of the ninth against Padres closer Huston Street (1-0), fresh off the disabled list, but he escaped the jam by getting Buster Posey to ground out to end the inning.
Edlefsen (0-1) took the loss after Forsythe ripped the second pitch of the inning to deep left field.
Giants starter Tim Lincecum, who remained winless in his past seven starts, gave up four runs while striking out eight over six innings. Lincecum, who has a 5.83 ERA after Tuesday’s game, was in position to pick up the victory until Quentin’s blast in the eighth.
But as has been the case often this season, one poor inning was too much for the right-hander to overcome.
Former Stanford standout Carlos Quentin hit two home runs — including one to tie the game 5-5 in the eighth — for the Padres, who grabbed an early lead with a four-run second inning.
Quentin is 12-for-23 with five homers and nine RBIs in six games since making his season debut May 28 after recovering from knee surgery.
Gregor Blanco and Ryan Theriot had three hits apiece for the Giants, who cut into the Padres’ lead with Theriot’s RBI single in the third and three runs in the sixth.
Theriot singled in the go-ahead run in the seventh inning before Quentin answered in the eighth with a one-out homer off Jeremy Affeldt.
NOTES: Giants outfielder Angel Pagan went 2-for-4 and extended his hitting streak to 13 games. Pagan is the first Giants player with three hit streaks of at least 10 games since Randy Winn in 2007. ... Theriot recorded his second three-hit game in his last five games. ... Giants third baseman Pablo Sandoval went 1-for-4 with Triple-A Fresno on Tuesday as part of his rehab assignment from a broken hamate bone in his left hand. ... The Padres won for only the third time in 32 games when trailing after seven innings. ... The Giants will send left-hander Madison Bumgarner to the mound today against Clayton Richard in a unqiue 3:35 p.m. start time.