Kalshi odds today vs every sportsbook

Across 190 two-sided player-prop markets Kalshi currently prices, the two sides add up to about 9.0% above a fair 100% — that gap is Kalshi's bid/ask spread, not a fee: Kalshi charges its cost separately, on top of this, as described below. One-sided markets are excluded from this figure because there is no second price to add against the first.

Kalshi charges a per-contract trading fee instead of building a margin into the line. The fee is a curve, not a flat rake: it peaks at roughly 1.75¢ on a contract priced near 50¢ and shrinks toward zero at both extremes, and maker fees are a quarter of taker fees.

Published fee schedule: Kalshi taker fee schedule, Jul 2026.

Kalshi is a CFTC-regulated exchange. Every contract settles at $1 or $0, so a 42¢ quote is a 42% implied probability with no sportsbook margin layered on top.

Kalshi lists player markets as "X or more" yes/no contracts rather than as an over/under line, so BeatVig converts each contract to the equivalent over price before comparing it to a sportsbook number.

Because a Kalshi quote is already close to a probability, the edge shows up when a sportsbook has not moved a prop that Kalshi traders have already repriced.

The table above is the fastest read: pick a sport and see how often Kalshi actually has the best number on a prop, out of everything it quotes, and how that share has moved against the rest of the market. "Cost" below it answers a different question — not whether Kalshi wins often, but what it costs when it does — and the best-bets list further down is Kalshi's own board ranked against our projections rather than against other venues, so a prop can show up there even on a venue with a middling best-price share.

Vig, no-vig and fair line, on Kalshi's own numbers

Take Kalshi's own figure from the Cost section above: across 190 two-sided markets it currently prices, the two sides add up to about 9.0% over a fair 100% — that excess is the vig (also called the hold or the overround), and it's paid on every one of those markets whether the bet wins or loses. No-vig is the arithmetic that removes it: divide each side by the total so they sum to 100%, and what's left is the fair line — the number the market would offer if nobody were taking a cut. A price better than fair on the same outcome is positive expected value; worse than fair, and you're the one paying the margin. Kalshi's own figure moves as its board turns over, so treat it as a current reading rather than a fixed property of the venue.

Run any two of Kalshi's own prices through the no-vig calculator to see its fair line directly, or check +EV bets today for a live feed of prices already beating theirs rather than one you have to de-vig yourself. For Kalshi against Hard Rock Bet specifically — the venue pricing the most of the same props right now — the Kalshi vs Hard Rock Bet comparison below has the head-to-head count.

To see Kalshi's own figure ranked against every other venue BeatVig measures, not just the one this page compares it to, check the low-vig sportsbooks board.