pinnacle no-vig odds / margin removal / worked example

How to remove the margin from Pinnacle odds

A no-vig price is a bookmaker's price with the margin taken out. For Pinnacle's three prices on a match, 2.10, 3.50 and 3.70, the margin is 3.22% and the fair home price is 2.17. This page shows both ways of getting there, when they differ, and how the same arithmetic runs on prices from the Pinnacle odds API.

Implied chanceOne divided by the decimal price. 2.10 implies 47.62%.
The marginThe implied chances of a whole market add up to more than 100%. The excess is the margin: here 3.22%.
The fair priceOne divided by the chance after the margin is removed. Home, draw and away then add up to exactly 100%.

What the margin is

A bookmaker prices every outcome a little short. Convert each price to an implied chance, add them up, and the total lands above 100%: for 2.10, 3.50 and 3.70 the chances are 47.62%, 28.57% and 27.03%, which sum to 103.22%. That 3.22% is Pinnacle's margin on this market, and it is the reason a price cannot be read as a probability without adjustment.

Removing it means deciding how to share the 3.22% across the three outcomes. Two methods are in common use, and the calculators on this site offer both.

Pinnacle 2.10fair 2.17yours 2.25

Pinnacle's margin: 3.22%implied chances above 100%
Fair price, proportional: 2.17home 2.17 · draw 3.61 · away 3.82

Proportional and power removal

Proportional removal divides every implied chance by the total. Home becomes 47.62% ÷ 103.22% = 46.13%, a fair price of 2.17; draw and away become 3.61 and 3.82. Each outcome gives up the same share of its chance, and the sum is 100%. It is the method the drop alerts' fair price uses and the default in the EV calculator.

Power removal raises every implied chance to the same exponent, chosen so the results sum to 100%. Because raising to a power shrinks small numbers more than large ones, it takes more of the margin from long shots and less from favourites. On this market the home price moves to 2.15 rather than 2.17. The two methods disagree most on markets with a big favourite and a long shot, and least on a market like this one, where the three prices are close.

At Pinnacle's margin the choice rarely changes a decision. The margin is thin, so there is little to redistribute; on a book with a 7% margin the same choice can move a fair price by several ticks.

Thin marginAround 2% to 3% on main markets, so little is removed and the method barely matters.
Sharp lineThe book takes bets from winning players and moves its price to them, so the fair price settles close to where the market ends up.

Why Pinnacle's fair price is the benchmark

A fair price is only as informative as the market it comes from. Value bettors price against Pinnacle because its line is the hardest to beat: a price above Pinnacle's fair price at another book is the clearest sign that the other book is out of step, and beating Pinnacle's fair close over hundreds of bets is the standard evidence of an edge. The closing line value guide covers that second use.

Doing it at scale with the Pinnacle odds API

By hand the arithmetic takes a minute per market. From the API it takes a loop: each event's money line arrives with home, draw and away under its period, and the three-line formula above runs on every event in the response. Drop alerts arrive with the work already done, as the nvp field, the no-vig price of the selection that moved. Treat a null nvp as unknown rather than zero.

For a single market, the no-vig calculator on pnclAPI accepts any number of outcomes, up to twelve, and shows the overround alongside the normalised prices. For the staking side of the same numbers, the Kelly guide continues from the 2.17 above.

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Questions about no-vig prices

Is the fair price the true probability?

No. It is the bookmaker's opinion with the margin removed. It is the best single estimate most bettors have access to, and it is still an estimate.

Which method should I use?

Proportional, unless you have a reason to believe long shots are overpriced in the market you are working on. At Pinnacle's margin the two agree to within a tick or two on most markets.

Does the margin change during a match?

Yes, and it usually widens in play, when the book protects itself against fast-moving information. Recompute the fair price from the current prices rather than carrying a prematch figure into the match.

Margin figures come from the worked prices above; the API field names follow the vendor's published documentation, checked on 26 September 2026. Published 29 September 2026.