How it works
We pull sportsbook odds
Every few minutes, we collect odds from the world's sharpest sportsbooks — the ones where professional bettors set the lines. These represent the market consensus on the probability of every outcome.
We compare to prediction markets
Prediction markets like Polymarket and Kalshi let anyone trade on the outcome of sporting events. Their prices are set by supply and demand — and sometimes they diverge from the sportsbook consensus.
We surface the gaps
When a prediction market price differs from the sportsbook consensus, we calculate the gap and display it on our scanner. You decide what to do with that information.
Updated continuously
Our engine runs throughout the day across MLB, NBA, NHL, soccer, tennis, and more. New edges appear and disappear as markets move. The data refreshes automatically so you're always seeing the latest picture.
FAQ
What is a "gap"?
The difference between what sportsbooks think the probability is and what the prediction market is charging. A 5c gap means the prediction market price is 5 cents different from the sportsbook consensus.
Does a gap guarantee profit?
No. Gaps represent a difference in pricing between two markets, not a guaranteed outcome. Sports are inherently unpredictable. This tool provides data for your own analysis — it is not financial or betting advice.
Which prediction markets do you cover?
Currently Polymarket. Kalshi and other prediction markets are coming soon.
Which sports?
MLB, NBA, NHL, and select soccer leagues (EPL, La Liga, Bundesliga, Serie A, MLS). Tennis and UFC coverage is expanding.
Is Brainy Betz a sportsbook?
No. Brainy Betz is an analytics and comparison tool. We do not accept bets, handle funds, or hold customer deposits. We display publicly available pricing data from third-party sources.