Thursday's series finale between the Braves and Rockies features unfamiliarity for both lineups.
Only four Rockies have faced Atlanta right-hander Ervin Santana: Justin Morneau, Wilin Rosario, Drew Stubbs and Brandon Barnes. Morneau has three home runs off Santana in 26 at-bats, but collectively the four have gone 9-for-39.
Santana began his Braves career with a 1.99 ERA through his first six starts. In the five starts since then, he has a 6.00 ERA, with an opponent's batting average of .316.
Right-hander Jhoulys Chacin made 31 starts for the Rockies last season, but none against the Braves. His most recent start against Atlanta came on Sept. 6, 2012, and it was the second shortest of his career, at 3 1/3 innings. He has given up 10 earned runs in his 13 career innings against Atlanta.
Jason Heyward and Freddie Freeman have done the most damage against Chacin, combining to go 6-for-13 with three home runs and four RBIs.
Braves: Coors Field proving to be unpredictable
Everything seemed to click for right-hander Julio Teheran last season in his only start at Coors Field. He limited the Rockies to one run over seven innings that day and has had the second-lowest ERA in baseball among pitchers with 35 starts since then.
So naturally, he gave up a season-high seven runs on Wednesday.
It had been the same story on Tuesday, when the Rockies stormed back for 10 runs after falling behind by seven before they could even bat. The Braves held on to win, 13-10, but left-hander Mike Minor, who'd gone into the start with a respectable 4.02 ERA in 31 1/3 career innings against the Rockies, allowed eight earned runs in four innings.
"The [Rockies] have done this for many years," manager Fredi Gonzalez said. "They play 81 games here [every season], and they know how to play that game. Fortunately, we have a lot of guys who have played that game here as well. You don't give away [at-bats]. You keep playing hard, because you just never know."
Rockies: Rutledge filling in nicely
A recent rash of injuries has forced manager Walt Weiss to get creative.
For the past two games, he elected to move everyday second baseman DJ LeMahieu over to third and inserted Josh Rutledge into the lineup to take LeMahieu's place.
Rutledge responded on Tuesday by finishing 3-for-4 with three runs, one RBI and a walk. He followed that up on Wednesday with a 2-for-3 performance in which he scored three times.
"I feel like I'm getting good pitches to hit and putting good swings on them," said Rutledge. "That's really all you can ask for."
• Recently signed veteran right-hander Brett Tomko made his debut with the Rockies' Triple-A team Wednesday, striking out one over an inning of work before a rain delay ended his day. The 41-year-old hasn't appeared in a Major League game since 2011.
• Gonzalez is expected to give catcher Evan Gattis the day off on Thursday. Gonzalez also hinted that Justin Upton could rest as well after playing through soreness in his left hamstring on Wednesday.
Cody Ulm is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.