Nolan Arenado jumpstarted the offense with a three-run homer in the first and DJ 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.
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.
Tyrell Jenkins (0-2) surrendered three homers and seven runs in 3 1/3 innings.
Story wore out Atlanta pitching in the four-game series, finishing 7 for 14 with four homers and nine RBIs. He's one homer away from matching the Rockies' rookie record set by Wilin Rosario in 2012.
On top of that, Story made a sensational over-the-shoulder grab in shallow center to thwart a big second inning.
Chatwood walked a batter in every frame and left after throwing 97 pitches, just 51 of them for strikes.
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.
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.
