Before September, the Braves had two winning months and three non-winning months that they played Baseball Almanac (and they even made it to 1st for a while), but they flopped in September, losing 16 out of the 20 games they played that month.
Before September, the Braves had two winning months and three non-winning months that they played Baseball Almanac, and briefly reached first place in their division. The team's performance declined in September, as the team lost 16 out of the 20 games they played that month.