Free NFL spread tool
Which side covers? Turn the dials and see.
Pick any game this week and see which side our numbers lean to against the spread. Move the sliders to weight the factors your way. Every input comes from public game data, and the back-test shows exactly how often the formula has been right.
Open the Spread Dial →Week 3 · Thu, Sep 24 · 8:15 PM ET
Atlanta Falcons at Green Bay Packers
Line: GB −5.5
Coin flip · Green Bay Packers
Coin flip: our margin (Packers by 6.4) is within a point of the line (GB −5.5), so the numbers don't separate the two sides.
Edge +0.9 pts at the fitted weights. Computed live from the same code as the tool.
- Every factor is a number you can see, from a public file of every NFL game since 1999.
- The weights are fitted by least squares and printed on the page. Sliders scale them; nothing is hidden.
- The back-test is on the page too, and it is honest: near a coin flip, because the line is hard to beat.
- No account, no sign-up, nothing stored. Not betting advice, and no wagering here.