ATS stands for "against the spread." An ATS record tells you how often a team, market, or situation has resulted in the spread being covered, rather than just who won the game outright.
Understanding ATS Records
A team with a 9-5 ATS record has been on the right side of the spread in 9 of 14 games. This doesn't mean they've won 9 games — it means in 9 games, the side of the spread that you'd have been betting paid out.
This can be confusing: the "right side" of the spread depends on whether you're betting the favorite or the underdog. An ATS record for "the favorite" and an ATS record for "the underdog" always sum to approximately 50/50 over large samples.
How ATS Records Are Used
Team analysis: Tracking a team's ATS record helps identify whether they consistently over- or underperform relative to market expectations. A team winning games comfortably but covered only 40% of the time is consistently overvalued by the market.
Situational analysis: "Home underdogs of 3-7 points against teams with winning records have a 53% ATS record over the past 5 seasons." This type of situational ATS analysis is the basis of many systematic betting approaches.
What ATS Records Don't Tell You
ATS records don't tell you why a team covered or failed to cover. Context matters enormously. A team going 7-3 ATS in November might have played 6 bottom-10 defenses. A team going 4-6 ATS might have played a brutal November schedule against playoff-caliber teams.
Always understand the context behind an ATS record before drawing conclusions.
[Track your own ATS performance by sport, bet type, and situation in Oddible →]
