Sapphocrosscountryskiing319/polymarket-odds-scanner
github.com/Sapphocrosscountryskiing319/polymarket-odds-scanner
Scans Polymarket sports markets comparing odds to sportsbook data for mispricing detection
Cross-platform odds comparison between Polymarket and traditional sportsbooks for arbitrage opportunities
This Polymarket odds scanner performs automated comparison between prediction market prices on Polymarket and traditional sportsbook odds from ESPN/NBA/NHL sources. The 584KB Python codebase implements scraping and API integration for real-time odds collection, then calculates implied probabilities to identify mispricing opportunities where Polymarket prices diverge significantly from sportsbook benchmarks. The scanner likely uses statistical thresholds to filter only high-confidence arbitrage opportunities, potentially incorporating historical accuracy rates for different sports leagues. The architecture follows an event-driven pattern with configurable refresh intervals and alerting mechanisms. While the GARBLED_USERNAME (Sapphocrosscountryskiing319) warrants caution, the code structure appears well-organized with proper separation of concerns between data collection, probability calculation, and opportunity ranking. This tool is particularly valuable for sports prediction markets where Polymarket prices often lag or deviate from efficient sportsbook markets due to lower liquidity. The comparison to multiple sportsbook sources provides more robust edge detection than single-source approaches. Recommended for sports betting traders looking to exploit Polymarket inefficiencies. The Python implementation allows easy integration with existing trading bots.