SAN FRANCISCO -- Rookie shortstop Trevor Story's 11th homer of the season led off a club one-inning record 13-run fifth as the Rockies beat the Giants, 17-7, Thursday night in the opener of a four-game set at AT&T Park.Carlos Gonzalez, Tony Wolters, Charlie Blackmon and Mark Reynolds each doubled during
SAN FRANCISCO -- Rookie shortstop Trevor Story's 11th homer of the season led off a club one-inning record 13-run fifth as the Rockies beat the Giants, 17-7, Thursday night in the opener of a four-game set at AT&T Park.
Carlos Gonzalez, Tony Wolters, Charlie Blackmon and Mark Reynolds each doubled during a frame that saw everyone but Blackmon make two plate appearances. Starting pitcher Chris Rusin's two-run, two-out single broke the previous mark -- 12 in the eighth inning at Coors Field on June 30, 2010 against the Cubs. In the first inning, Nolan Arenado's two-run shot lifted his Majors-leading home run total to 12.
• Cast your Esurance All-Star ballot for Arenado and other #ASGWorthy players
It also was the biggest inning by any club in AT&T Park history. And it came on the heels of the Rockies totaling six runs while dropping two of three at San Diego.
"Offense isn't always going to be clicking on all cylinders, but tonight we were," Rockies manager Walt Weiss said.
Giants starter Matt Cain absorbed eight runs, six earned, and 10 hits. Reliever Vin Mazzaro ended up being charged with nine runs, seven earned, in one-third of an inning. And it was not a pleasing night for Rusin, who gave up 13 hits and seven runs in 4 1/3 innings -- two outs shy of qualifying for the win, which went to reliever Christian Bergman.
"It's not easy," Cain said. "It's frustrating and it's on your mind. I'm able to focus when I'm on the field and not when I'm away, which is a good thing."
• Bochy believes Cain can get back on track
MOMENTS THAT MATTERED
Storybook, record book: Before the Rockies rewrote their record book, Story made a little more rookie history. He improved to 11 homers through the first 27 games of his career, equaling George Scott (1966) for the Major League mark. He added an RBI single later in the inning.
Story has said all along that he doesn't focus on records. He said the team had that attitude during the 13-run frame.
"We never had any record talk like that; everybody was just putting good swings on the ball and having fun with it," Story said.
To err is human: Fielding errors by Brandon Crawford and Kelby Tomlinson within a span of three batters helped prolong the record-setting fifth inning.
"They didn't help," said Giants manager Bruce Bochy, whose club gave up a 12-run frame to the Mets on Friday. "You mix in a walk and a hit batsman and it's hard to believe lightning hit us twice in the same week."
A Giant answer:Buster Posey's two-run double in the bottom of the first was a good response to the Rockies' three-run top of the inning, keeping the Giants close -- for the time being.
Defense? In a game like this? The Rockies were clinging to a 4-3 lead and the Giants appeared to be rallying in the third when Gonzalez fielded Crawford's single in right field and threw out Posey at the plate to snuff out the Giants' momentum.
"That's what we can do defensively -- we're a very good defensive club … that's another way that CarGo can help you win a game," Weiss said.
"In situations where your at-bat really doesn't matter in the sense that you're winning by a lot or you're losing by a lot, or some crazy thing is going on with that inning, it's hard to go up there and have a professional at-bat and still focus as much as you would if it was a tie ballgame. I'm impressed by our at-bats." -- Blackmon on the 13-run inning
"It was a breaking ball that stayed in the nitro zone." -- Bochy on Arenado's home run
"I don't look into it all -- I have a lot of respect for that team and that pitching, and they're always going to be a playoff team. It's always a battle. I love this atmosphere. Fans are always intense, probably some of the best fans in baseball." -- Arenado, who went 11-for-33 with six home runs and 14 RBIs in nine games at AT&T Park last season, then went deep for two RBIs his first time up Thursday and added another with a bases-loaded hit-by-pitch in the fifth
Rockies: Right-hander Chad Bettis, who battled to a win over the D-backs in his last start (six innings, three runs, nine hits, four strikeouts and no walks), will start against the Giants at AT&T Park on Friday at 8:15 p.m. MT. Bettis is 1-0 with a 3.00 ERA in three career appearances, including one start, at AT&T Park.
Giants: Left-hander Madison Bumgarner starts for the Giants on Friday night at 7:15 p.m. PT. The three-time All-Star is 4-1 with a 3.44 ERA in his last seven starts against the Rockies and the Giants are 8-2 against Colorado in his starts at AT&T Park.
Watch every out-of-market regular-season game live on MLB.TV.
Rick Eymer is a contributor to MLB.com based in the Bay Area.
Thomas Harding has covered the Rockies since 2000, and for MLB.com since 2002. Follow him on Twitter @harding_at_mlb, listen to podcasts and** like his Facebook page**.