Read concepts and strategies
August 3, 2026
Arbitrage betting is legal in every US state where sports betting is legal — no state criminalizes it. The real risk isn't the law, it's sportsbook terms of service. Here's the distinction that actually matters, and how books detect arbitrage.
August 3, 2026
Prediction market arbitrage means buying opposite sides of the same outcome on two platforms — like Kalshi and Polymarket — so the combined cost is under $1. Here's how the math works, why the gaps exist, what fees do to your edge, and how to spot them fast.
August 3, 2026
EV stands for expected value — the average amount a bet wins or loses if you could place it thousands of times. Here's what EV means in betting, how to calculate it, and how to tell a +EV bet from a -EV one.
August 3, 2026
Arbitrage betting means covering every outcome of an event across different sportsbooks at prices that return more than you staked. Here's the math, a worked example, how to find arbs, and what actually goes wrong.
July 21, 2026
Kalshi arbitrage betting means covering both sides of an outcome across a prediction market and a sportsbook to lock in a fixed return. Here's exactly how it works, a worked example, the fees that eat your edge, and how to find these opportunities in seconds.
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