Remove sportsbook vig or juice to see fair no-vig odds, true probabilities, and hold percentage for a market.
Apply no-vig prices to game lines, sportsbook optimization, and player prop research before deciding whether a listed price deserves more review.
Sportsbooks build vig, juice, or hold into listed odds, which makes the total implied probability across all outcomes exceed 100%.
A no-vig fair odds calculator normalizes those implied probabilities so the market totals 100%. That gives you a cleaner reference price for each side before comparing against live sportsbook prices.
Worked example, a standard two-way market at -110 on both sides. Each side implies 52.38%, so the market totals 104.76%. The vig is that 4.76% above 100. Normalize both sides back to 100% and each lands at 50.0%, a fair price of +100. You are paying -110 for a coin flip.
Worked example with an uneven market, -140 against +120. Those imply 58.33% and 45.45%, totalling 103.79%, so the hold is 3.79%. The fair prices come out at -128 and +128. If you were about to take the -140 side, that gap is what the number costs you before the event even starts.
Three-way markets, such as soccer 1X2 where a draw is its own outcome, work the same way but carry more hold because there are three prices to pad. Take +150, +230 and +180. Those imply 40.00%, 30.30% and 35.71%, totalling 106.02%, so the vig is 6.02%, noticeably above the two-way example. Fair prices are about +165, +250 and +197. Any market with more than two outcomes can be de-vigged this way, including three-way moneylines and multi-runner fields.
No-vig odds are a reference price, not a guarantee. Verify house rules, line freshness, limits, and market availability before deciding whether a listed number deserves more review.
Kalshi quoted one point on Dallas at Seattle. The taker fee turns 64c and 37c into 65.62c and 38.64c, so the real cut is 4.25% against 4.76% at -110.
Eleven books priced the same NFL moneyline between +104 and -125. Here is what that spread is worth in real money, and how to read it before you bet.
A hedge at -140 when the fair price is -128. Cash out is that same hedge placed for you, at a number the book never puts on the screen.