Kris Medlen struck out a career high 12 to lead the Atlanta Braves to a 6-1 win over the Colorado Rockies on Monday.
Medlen (7-1) allowed five hits without a walk in his second complete game of the season.
He extended his streak of scoreless innings to 34 2-3 - the Braves' longest since Greg Maddux in 2000 - before the Rockies scored an unearned run in the seventh.
The right-hander, who appeared in 38 games in relief before moving into the rotation on July 31, improved to 6-0 with a 0.54 ERA in seven starts. He spent most of 2011 on the disabled list recovering from elbow ligament-replacement surgery on Aug. 18. 2010.
Medlen was 5-0 as a starter in 2010. The Braves have won his last 18 starts. He threw 111 pitches, including 85 strikes.
David Ross hit a two-run double in Atlanta's four-run third inning.
Rockies starter Tyler Chatwood (4-4) gave up six runs, five earned, in only three innings. Chatwood allowed only two hits but was hurt by five walks, matching his career high.