A closing spread a half point off a key number hands the underdog side extra backdoor- cover value that a spread sitting exactly on the key number does not.
The tell: The closing spread is within half a point of (but not exactly on) 3, 7, 10, 14, or 17.
390-357 ATS (52.1%) · all games · n=747
· as of Sep 22, 2026
Beat the closing line: not captured yet
Drift not measured
By window
No graded window split yet.
Fires this week on
ATL @ GB · spread · away
BAL @ DAL · spread · home
CAR @ CLE · spread · home
CIN @ PIT · spread · home
HOU @ IND · spread · home
KC @ MIA · spread · home
LA @ DEN · spread · home
LAC @ BUF · spread · away
LV @ NO · spread · away
MIN @ TB · spread · home
NE @ JAX · spread · away
NYJ @ DET · spread · away
PHI @ CHI · spread · home
SEA @ WAS · spread · home
historical-context
Ats Streak Regression
A team on an extended ATS streak (either direction) is due for mean reversion; the streak itself carries no forward-looking edge once it reaches a genuine length.
The tell: Fires against the more extreme of atsStreakHome/atsStreakAway once |streak| >= 3 games: fades a covering streak, rides a fading streak's regression.
418-397 ATS (51.3%) · all games · n=815
· as of Sep 22, 2026
Beat the closing line: not captured yet
Drift not measured
By window
No graded window split yet.
Fires this week on
ARI @ SF · spread · away
ATL @ GB · spread · home
BAL @ DAL · spread · home
CAR @ CLE · spread · away
HOU @ IND · spread · away
KC @ MIA · spread · home
LA @ DEN · spread · away
LAC @ BUF · spread · away
LV @ NO · spread · away
NYJ @ DET · spread · away
PHI @ CHI · spread · away
SEA @ WAS · spread · home
TEN @ NYG · spread · away
market-price
Key Number Cross
A spread that crosses a key number (3 or 7) between open and close reprices a meaningfully different fraction of NFL margins than a spread that never crosses one.
The tell: The closing spread has crossed the 3- or 7-point key number since the open.
6-4 ATS (60.0%) · all games · n=10
· as of Sep 22, 2026
Beat the closing line: not captured yet
Drift not measured
By window
No graded window split yet.
Fires this week on
ATL @ GB · spread · away
BAL @ DAL · spread · away
CAR @ CLE · spread · away
CIN @ PIT · spread · away
HOU @ IND · spread · away
LA @ DEN · spread · home
LAC @ BUF · spread · home
NE @ JAX · spread · home
NYJ @ DET · spread · away
PHI @ CHI · spread · away
SEA @ WAS · spread · home
narrative
Prime Time Under
Primetime broadcasts skew toward conservative game plans and public over-money inflates the total, so the under carries a live edge.
The tell: Fires the under whenever the schedule marks this game primetime (Thu/Mon, or Sun >= 18:00 local).
237-187 ATS (55.9%) · all games · n=424
· as of Sep 22, 2026
Beat the closing line: not captured yet
Drift not measured
By window
No graded window split yet.
Fires this week on
ATL @ GB · total · under
LA @ DEN · total · under
PHI @ CHI · total · under
situational
Primetime Dog
Primetime attention can overprice favorites, leaving value on the underdog.
The tell: Primetime spread has a non-pick'em underdog.
225-199 ATS (53.1%) · all games · n=424
· as of Sep 22, 2026
Beat the closing line: not captured yet
Drift not measured
By window
No graded window split yet.
Fires this week on
ATL @ GB · spread · away
LA @ DEN · spread · home
PHI @ CHI · spread · home
narrative
Home Dog Primetime
A home underdog in a primetime spot draws a spirited crowd and extra motivation, covering at a rate the closing line under-prices.
The tell: Fires home to cover whenever the game is primetime and spreadClose < 0 (home is the underdog, nflverse sign convention).
88-75 ATS (53.8%) · all games · n=163
· as of Sep 22, 2026
