Remove the vig from DraftKings odds to find true probabilities and identify value bets.
DraftKings typically runs 4-6% margins on NFL spreads and 6-8% on player props. Higher-hold prop markets are where the most vig hides — and where de-vigging reveals the most value. Understanding DraftKings' margin structure helps you know where to look for +EV opportunities.
Open a DraftKings market and note both sides of the line (e.g., -110/-110 or -130/+110).
Enter both odds into the De-Vig Calculator — select American format.
Review the 7 de-vig methods. For standard 2-way markets, the multiplicative method is the go-to.
Compare the no-vig probability to the actual line. If a sharp book (Pinnacle, Circa) shows a different price, you may have found value.
Use the fair odds to calculate expected value on DraftKings' actual offered line.
DraftKings NFL spread: Chiefs -3 (-115) / Bengals +3 (-105). The calculator shows the multiplicative true probabilities are 53.5% / 46.5%, with 4.7% total margin. The Pinnacle no-vig line implies Chiefs 52.0% — so DraftKings is shading toward the public-side Chiefs by 1.5 points of probability.
Fee model: $0.02 per contract per side ($0.01 DK + $0.01 CME)
Formula: $0.01 DraftKings + $0.01 CME exchange fee per contract per side
Timing: Charged at time of trade
Strip the margin from FanDuel odds to find fair probabilities for NFL, NBA, and more.
DraftKings Predictions Fee CalculatorCalculate DraftKings event contract fees — $0.02 per contract per side via CME Group.
DraftKings Predictions Break-Even CalculatorFind the win rate you need on DraftKings event contracts after $0.02/contract fees.
DraftKings Odds Converter — American to Decimal & MoreConvert DraftKings American odds to decimal, fractional, and implied probability. Understand what your DraftKings lines really mean.
Ready to start trading on DraftKings?