DENVER — Starting pitchers aren't supposed to have stat lines quite like this — winning ones, anyway. Rookie shortstops aren't supposed to make it look this easy for an entire series.

Just that kind of weekend for Colorado.

Tyler Chatwood allowed one hit over five erratic innings, Trevor Story lined his fourth homer in three games and the Rockies swept the Atlanta Braves with a 7-2 win Sunday.

"Four-game sweeps are extremely difficult in this league, next to impossible," Rockies manager Walt Weiss said. "So that's an accomplishment right there."

Chatwood (9-6) finished with an intriguing line: a career-high eight walks, one hit — Freddie Freeman's single in the first — six strikeouts and no runs. He's the 16th pitcher in major league history to post that sort of roller-coaster line and go at least five, according to the Rockies.

"That's not a normal stat line for a starter," said DJ LeMahieu, whose team captured all four from the Braves after losing two of three to struggling Tampa Bay. "He grinded."

Just as intriguing was Story's line for the Atlanta series: 7 for 14 with four homers and nine RBIs.

"Nah, that's not" normal, either, LeMahieu said. "Not for anybody."

Nolan Arenado jumpstarted the offence with a three-run homer in the first and LeMahieu added a solo shot in the fourth as the Rockies captured their 10th straight victory over the Braves at Coors Field.

Story launched a two-run shot in the fourth a day after breaking the NL rookie record for most homers by a shortstop. He now has 27 this season and moves closer to the major league rookie record for a shortstop. Nomar Garciaparra had 30 with Boston in 1997.

Tyrell Jenkins (0-2) surrendered three homers and seven runs in 3 1/3 innings.

"He was just kind of off," Braves interim manager Brian Snitker said. "Didn't have the crispness and the bounce in his step that he had prior."

Chatwood walked a batter in every frame and left after throwing 97 pitches, just 51 of them for strikes.

"Effectively wild, I think they call that," Chatwood said. "I thought my stuff was really good today.

"Normally, if you walk guys, you're going to get hurt here. Anytime you can do that and get away with it, it's always nice."

Rockies reliever Gonzalez Germen surrendered both runs in the seventh. Freeman had an RBI double and Nick Markakis brought in the other on a grounder.

Atlanta left 10 runners on base.

"It seemed like we should've been the one running away with the game, really, with all the baserunners we had," Snitker said.

This certainly helped set the tone: The Rockies sent 10 batters to the plate as part of a four-run first. Arenado had the big hit with a rare homer to right.

Of course, the story of the day was the rookie shortstop. For the weekend, too. All season, for that matter, as Story began by hitting 10 homers in April, tying for most ever by a rookie.

"I don't like to look back on things right now," Story said. "I just put my head down and work every day."

TRAINER'S ROOM

Braves: RHP Julio Teheran threw from 90 feet Sunday and didn't feel pain two days after leaving a game early with tightness in his right lat. He remains hopeful he can make his next scheduled start. "We still have to wait," Teheran said. "I don't feel any pain and that's a good sign."

Rockies: OF Gerardo Parra (sprained left ankle) looks "real good," Weiss said, and could head out for a rehab assignment as soon as this week. ... The Rockies are expected to call up 2012 first-round pick David Dahl on Monday, according to a Denver Post report . The outfielder is batting .484 with five homers and 16 RBIs for Triple-A Albuquerque. Dahl was limited to 73 games for Double-A New Britain last season after suffering a lacerated spleen in an outfield collision.

EMULATING JUNIOR

If Carlos Gonzalez's swing looks familiar, it's because he modeled it after Ken Griffey Jr., who was inducted into the Hall of Fame on Sunday.

Even Gonzalez's bat drop after a homer is borrowed from Griffey.

"He meant a lot for the game and part of the reason I swing the way I swing is because of him," said Gonzalez, who lives in Windermere, Florida, during the off-season and frequently runs into Griffey. "I've got to thank him."

UP NEXT

Braves: After Monday's day off, Atlanta plays a two-game series in Minnesota. RHP Lucas Harrell (1-2) goes for the Braves on Tuesday and RHP Ervin Santana (3-8) for the Twins.

Rockies: LHP Jorge De La Rosa (6-7) takes the mound Monday to kick off a three-game series in Baltimore. He's making his second straight interleague start.