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Live market scan from the Polymarket Gamma API. Kelly-optimal position sizing. Weather-market flagging. Paper trading only — you enter your own probability estimates, and no real money moves here.

Markets Scanned
Opportunities
$1K
Paper Bankroll
0.25
Quarter Kelly
Live Scanner
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Market YES Price Liquidity Hours Left Flag
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Kelly Position Sizer

⚡ Calculate Optimal Bet Size

Enter values and click Calculate
Strategy Overview

🌡️ Weather Markets

Polymarket resolves by AIRPORT stations (LaGuardia, Love Field), not city centers. Checking ensemble forecasts (GFS+ECMWF+ICON+JMA) for the exact station can reveal gaps between the forecast and the market price. A gap is a signal to investigate — never a guaranteed edge.

🧠 4-Check Decision Framework

1) Base rate historical data. 2) News in last 6h. 3) Whale wallet positions. 4) Crowd cognitive errors. Need 3/4 to pass before sizing.

📊 Kelly Criterion (Quarter)

f* = (p×b - q) / b, then ×0.25 for safety. Never bet >25% of bankroll. Negative EV = $0 bet. Proven mathematically optimal for long-run growth.

🚪 Exit Strategy

Take profit at 85% of move. Exit on 3× volume spike. Kill stale positions (24h, <2% change). The discipline: capture most of the move and move on rather than holding for the last cent.

Paper Trading Stats
0
Total Trades
Win Rate
$0
Total P&L
$1,000
Bankroll
Paper trading only. Nothing on this page is financial advice, and this tool never places real bets or moves real money. See the Polymarket Tester hub and our disclaimer.