According to research by myself and others, it takes about 70 games before observed results from a season in progress reach even a 50-50 balance with preseason expectations, in terms of how much weight each deserves when assessing a team. The Braves have played less than half that many games so far this year, which probably goes a long way toward explaining why the statistical projections haven’t budged much off of Atlanta’s relatively bearish spring-training predictions. The past data says you can’t read too much into a month’s worth of results.
However, that premise was designed to hold true for all teams as a group. What happens when we look at a smaller group of teams, especially just the ones that have as much breakout potential as the Braves? Atlanta went into the season with Baseball America’s top-ranked farm system and currently has the eighth-youngest roster in baseball (if we weight each player’s age by their wins contributed this season.)
To get a sense for whether this matters, I looked at all teams since 1984 who were coming off a sub-.500 season but had a better-than-.500 record in April. Over the rest of the season, teams in that group who were both among MLB’s 10 youngest and went into the year with a top-10 farm system (again, according to Baseball America) ended up winning 2.7 more games over the rest of the season than Elo would predict. By comparison, all other teams won roughly as many games as Elo thought they would.
That difference is just on the border of statistical significance, but if it holds true for the Braves, it would imply that they’re due to win more than expected based on their pessimistic win projections at FanGraphs and in our Elo interactive — and those extra wins could be enough to elevate them from a mid-80s win tally (sketchy territory, playoffs-wise) to a number closer to 90 wins (a much safer bet for making the postseason).