DENVER (AP) - Pinch-hitter Chris Iannetta hit a two-run homer off David Weathers in the 11th inning to give the Colorado Rockies a 7-5 victory over the Milwaukee Brewers on Tuesday night.
Iannetta sent a 3-2 fastball into the Rockies' bullpen in right-center for his 16th homer and first career game-ending drive.
The Rockies widened their NL wild-card lead to three games over Atlanta with five games remaining.
The crowd of 39,087, pretty big for a Tuesday night in downtown Denver, let loose a loud cheer when the Braves' 5-4 loss to the Marlins was announced on the scoreboard in the middle of the sixth.
And there was a collective groan when light-hitting Jason Kendall hit a three-run homer off closer Huston Street with one out in the ninth to tie it at 5.
Matt Belisle (3-1), the seventh Rockies pitcher, picked up the win with a 1-2-3 11th. Weathers (4-6) walked Brad Hawpe and got pinch-hitter Jason Giambi to pop out before Iannetta connected.
Jason Marquis gave up two earned runs and six hits in six innings, and was in line for his career-high 16th win before Street absorbed his second blown save of the season.
Kendall, who entered with one homer on the year, drove an 0-1 slider from Street into the tunnel in left. Street had been perfect in 15 save chances at Coors Field this season.
Marquis again struggled to throw his sinker for strikes early in the count, but he got three double plays, twice with the bases loaded. The bullpen got seven straight outs after he left. Matt Daley pitched a perfect seventh, Rafael Betancourt struck out the side in the eighth and Street struck out his first hitter and looked well on his way to his 35th save in 36 chances.
But after getting ahead of Mike Cameron 0-2, he threw four straight balls, then served up a single to J.J. Hardy before Kendall's homer.
Milwaukee left-hander Chris Narveson (2-1) baffled all of the Rockies except Todd Helton, who hit a run-scoring single in the first inning and chased him with an RBI double in the sixth that tied it at 2.
Helton's double into the right-field alley followed Ryan Spilborghs' double down the left-field line and prompted Milwaukee manager Ken Macha to lift his rookie, who was charged with three runs and five hits in five-plus innings.
Todd Coffey gave up a single to Troy Tulowitzki and a walk to pinch-hitter Ian Stewart before Yorvit Torrealba's sacrifice fly to center put the Rockies ahead 3-2.
Brad Hawpe hit a routine ground ball to second baseman Felipe Lopez, but Stewart avoided the tag, allowing another run to score, and slid safety into second when Lopez overthrew shortstop J.J. Hardy for an error that sent Stewart to third.
Helton also hit into a double play that scored another run to make it 5-2 in the seventh.
Marquis struggled with his sinker over his previous seven starts, and with batters laying off his signature pitch, he had to come at them with sliders and fastballs, and they teed off. That's what happened for three innings against Milwaukee.
In the first, Lopez singled and Ryan Braun doubled off the right-field wall. After intentionally walking Prince Fielder, Marquis got Casey McGehee to ground into an inning-ending double play.
Mike Cameron led off the second with a walk and easily stole second on Marquis' slow delivery. He advanced on a groundout and scored on Jason Kendall's bouncer to tie it at 1.
The Brewers loaded the bases again in the third inning when Corey Hart hit a one-out single, Braun doubled and Fielder again was walked on purpose. This time, McGehee drew a walk himself, giving Milwaukee a 2-1 lead. Marquis limited the damage by getting Cameron to hit into a double play.
NOTES: The Brewers said McGehee will have surgery after the season to remove bone fragments from his right knee. ... Kendall's only other homer this season was Aug. 7 at Houston.