Arbitrage Bots

meloner3 / poly-kalshi-sports-bot

★ 131 stars View on GitHub →

What it does

Cross-platform sports arbitrage between Kalshi and Polymarket. Written in Rust. The highest-starred arbitrage bot in the ecosystem.

What we learned from it

Rust shows up disproportionately in arbitrage code. The latency margins on cross-platform arb are tight enough that the language choice matters — Python's GIL becomes a real constraint when you're racing other bots for a 3¢ spread.

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