Tutorial · 0:38
No-Vig Fair Odds Calculator
A 38 seconds walkthrough in Ross's voice, with captions on screen. The No-Vig calculator takes the book's cut out of a price.
Transcript
The No-Vig calculator takes the book's cut out of a price.
Enter both sides of one market: here, -110 on each side.
The two implied chances add up to more than 100%. The extra is the overround, the book's cut. Take it out and you get the estimated fair price, the one every board uses: here, even money.
Add a price you can get at another book, and it shows that price's estimated edge over fair.
It's the market's estimate, not a known probability.
It runs on the same odds math as every board.