Trade Polymarket
with an edge.
PolyMath gives you the quantitative tools serious prediction market traders use — Kelly sizing, EV analysis, arbitrage detection, and more. All free, all in one place.
Math-first
Every tool is built on proven quantitative finance principles — Kelly criterion, expected value, arbitrage theory.
Live data
Market prices pulled directly from the Polymarket API in real time. No stale numbers.
Instant results
No accounts, no paywalls, no friction. Open a tool and get your answer in seconds.
All Tools
Market Browser
Browse 200+ live Polymarket markets. Filter by category, sort by volume, and load any market directly into a calculator.
Browse Markets →Kelly Criterion
Calculate optimal bet size to maximize long-run bankroll growth. Never over-bet a position again.
Open Calculator →EV Calculator
Know your edge before you trade. Input your true probability vs. market price and see expected value instantly.
Open Calculator →Arbitrage Scanner
Spot mispriced YES/NO combinations across correlated markets. Find risk-free profit windows before they close.
Open Scanner →Parlay Builder
Stack up to 8 independent positions. See combined probability, payout multiplier, and total EV in one view.
Open Builder →More tools coming soon
Portfolio tracker, historical calibration, and more. Get notified when new tools drop.
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