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Beat the vig.

Kalshi vs the sportsbooks.

Kalshi, Polymarket and Novig priced against DraftKings, FanDuel and the rest — the same player prop, two different numbers. Search any NFL, NBA or MLB player to see it side by side, de-vigged and ranked.

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25 books & exchanges priced · updated less than a minute ago

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The most-searched players with live lines across the books and prediction markets.

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How it works

Three steps, no spreadsheet.

  1. We pull live prices Every prop, from the sportsbooks and from the prediction markets, on the same line.

    See a live board →

  2. We de-vig and compare Prices convert to implied probability, so an exchange quote and a book quote are finally the same unit.

    How the comparison works →

  3. You take the best number Every row names the venue and the price. You place it where it pays more.

    Compare today's prices →

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Prediction market odds by venue

Kalshi, Polymarket and Novig, sport by sport.

How BeatVig works

From first click to your inbox.

  1. Compare Every price, from the sportsbooks and the prediction markets, on the same line.

    See a live board →

  2. Spot the value We de-vig every price and rank it against fair value, so one number tells you who's paying more.

    Today's best value →

  3. Pick your books Choose only the books and exchanges you actually have accounts at — the whole site narrows to them.

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  4. Get alerted Set a threshold once and get emailed the instant an arb, an edge or a price clears it.

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Low vig sportsbooks and no-vig odds, explained

What the vig is, which venues charge least of it today, and how to check the number yourself.

The vig — also called the juice, the overround, or just getting vigged — is the margin a sportsbook builds into a two-sided price. A genuine coin flip should pay +100 on both sides; a book prices it −110/−110 instead, and that gap is where the extra money sits. Low vig sportsbooks are the ones whose number sits closest to the true coin flip once that margin is stripped back out, and no vig odds are what's left over after you strip it.

BeatVig measures this live rather than from an old ratings table. Right now it's comparing 25 books and exchanges on the same NFL, NBA and MLB lines, prop by prop, and the vig by book board ranks every one of them by how much they're actually charging today — not last season. A venue that's cheap on one market can run expensive on another, so the ranking recomputes itself as the slate moves instead of publishing one fixed number for "low vig sportsbooks" and calling it done.

Prediction markets get to no-vig odds a different way: Kalshi, Polymarket and Novig don't post a shaded line at all. A trader sets the contract price and the venue charges its fee separately, on top, rather than folding it into the number — so a 42¢ contract is already close to a 42% probability with little left to strip out. That's the one case where "beat the vig" isn't about finding the cheapest book; it's about checking whether an exchange avoided building one in to begin with.

Three ways to act on it from here. Run two of a book's own prices through the no vig calculator to see its fair odds and exactly how much vig is baked in. Check the kalshi arbitrage calculator before taking both sides of a bet at two venues, because a standard calculator skips the exchange fee and overstates the margin. Or skip the arithmetic and watch the live boards directly: arbitrage bets today for two-sided positions that clear a certainty, and +EV bets today for a single-side price that's already beating its fair line by 2% or more.

In short

Right now BeatVig is ranking 25 low vig sportsbooks and no-vig odds across Kalshi, Polymarket, Novig, DraftKings, FanDuel and the rest, live, on the exact same NFL, NBA and MLB player prop. Fair value for each price is BeatVig's de-vigged consensus where one exists, or else the de-vigged median of at least two sportsbooks on the same outcome. It's for anyone with accounts at more than one venue who wants to know, before they bet, which one is paying the most for it.

BeatVig FAQ

Which are the low vig sportsbooks right now?

It changes by the hour, which is why BeatVig ranks it live instead of publishing a fixed list. The vig by book board measures all 25 books and exchanges on today's lines and sorts them from cheapest to most expensive.

Is Kalshi better than a sportsbook?

It depends on the bet. Kalshi is an exchange, not a sportsbook: traders set the price and Kalshi charges a per-contract fee instead of building a margin into the line, so on a given player prop its price can be cheaper or more expensive than DraftKings or FanDuel's. BeatVig measures it live, prop by prop, rather than asserting it either way.

What is BeatVig?

BeatVig is a live price-comparison site for sports betting. It tracks Kalshi, Polymarket and Novig against sportsbook prices on the same NFL, NBA and MLB player props and game lines and shows which venue is paying the most for each one right now.

What does BeatVig compare?

Kalshi, Polymarket and Novig prices against sportsbook prices, on the exact same bet. Every venue is checked against every other venue on every game line and player prop both sides are pricing.

How does BeatVig work out fair value?

Every price converts to the win rate it implies, then is checked against a fair line: BeatVig's de-vigged price where one exists, or the de-vigged median of at least two sportsbooks on the same outcome. The gap between a venue's price and that fair line is the edge BeatVig reports.

Which sportsbooks and prediction markets does BeatVig price?

25 sportsbooks and exchanges right now, including Kalshi, Polymarket and Novig on the prediction-market side. Every book page lists the full catalogue.

Is BeatVig a sportsbook?

No. BeatVig compares prices only — it is not a sportsbook or a prediction market, accepts no wagers and holds no funds. It is for bettors who already have accounts elsewhere and want to know which one is paying the most for a given bet.