EXPERIMENTAL PROTOTYPE · NOT FOR USE
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Help & Guide

How Oddsy works — in plain English.

A 2-minute read plus a few interactive widgets. Skim the sidebar to jump to what you need. By the end you'll know how we find edge, what each tool is for, and how to read an EV number.

Under the hood

How we find +EV bets

Every bet has a true win probability and a book-posted price. When the price implies a lower probability than the true market consensus, there's edge. Here's the pipeline.

01
Scan every book
DraftKings: -110 / -110. FanDuel: -108 / -112. BetMGM: -105 / -115. Different books, different prices.
02
Devig each pair
We strip the book's margin from each pair. -110 / -110 implies 52.4% / 52.4% = 104.8%. After devigging: 50% / 50%.
03
Average the truth
Across 7 books the devigged probabilities cluster. That average is our 'market truth' for this line.
04
Compare to the best price
If one book is paying more than market truth implies, there's edge. We publish only picks where edge ≥ 2%.
Interactive

Odds converter

American, decimal, and implied probability are the same number in different clothes. Try it.

Read-out: A bet at -110 pays 0.909× your stake if it wins, and the market thinks it wins about 52.4% of the time.
Tab or press Enter to recalculate.
Interactive

EV calculator

Plug in a book's price and your estimate of the true win probability. We'll tell you if the bet makes money in the long run.

EV per $1
+$0.050
Edge vs line
+2.6%
Market implies
52.4%
Pays
0.91× stake
Strong +EV. Over 100 bets of $100 at these terms, you'd expect to finish +$500.
Reference

Glossary

Tap any term to expand.

Questions

FAQ

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