Dioner Navarro hit a tiebreaking single in a three-run eighth inning, and the Chicago Cubs beat Atlanta 3-1 Saturday to keep the Braves on the brink of the NL East championship.
Atlanta's magic number remained at one to clinch its first division title since 2005. Second-place Washington hosted Miami later Saturday.
Starlin Casto singled off Kris Medlen with one out in the eighth, pinch-hitter Donnie Murphy singled against Scott Downs (2-1) and Anthony Rizzo hit a tying double down the left-field line.
Navarro singled in the go-ahead run against David Carpenter, and Nate Schierholtz added a sacrifice fly.
Carlos Villanueva (7-8) got three outs in the eighth, and Pedro Strop finished for his first save in four chances.
Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.