Deep Dive

Every major signing this summer shifted real money on prediction markets. Not metaphorically – within hours of a transfer confirmation,…

The Kelly criterion formula you’ll find in most explainers uses decimal odds: b, p, q, solve for f. That’s fine…

Devigging one line by hand takes thirty seconds. Devigging every market on a full slate, every ten seconds, all day,…

A player’s name is on the draw sheet. The match never starts. The scoreboard reads “w/o” instead of a score,…

Two traders watch the same Fed rate decision market. One’s been running size on Polymarket for a year and can’t…

You’ve decided to run both, Kalshi and Polymarket. Kalshi for the regulated US access, Polymarket for the liquidity and catalog….

You spot it. Polymarket has YES at 46 cents. Kalshi has NO at 51 cents on the same event. Add…

You pull up the Kalshi API for the first time expecting something like Stripe. A key, a header, done. Instead…

You’ve read American odds for years. Minus signs, plus signs, the mental math you do without thinking anymore. Then you…

You entered the home team into a two-way no vig calculator. You input 1.25, and a fair price came out….