Free calculation tool
DraftKings no-vig calculator
A no-vig calculator removes a market’s margin using proportional normalization. Convert each outcome’s decimal odds to implied probability, add those probabilities, then divide each by the total. The resulting percentages sum to 100%. These are market-derived fair probabilities under one margin model, not independently verified estimates of true probability. This manual scenario uses the price you enter; it is not an executable DraftKings offer.
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Your inputs
Calculated result
The formula
Fair probabilityᵢ = (1/dᵢ) ÷ Σ(1/d).
Worked example
Two prices of −110 each imply 52.38%. Proportional margin removal produces 50% for each outcome.
Recorded DraftKings prices
Explore stored mainlines and Pick6 multipliers with capture times. Sportsbook coverage consists of observed moneylines, spreads and totals, including ESPN-observed and healthy native scopes. These are not executable offers; rows older than 900 seconds are stale. Pick6 multipliers are not sportsbook odds.
DraftKings odds calculation reference. Formulas reviewed November 6, 2026.
Questions
What does the result include?
A no-vig calculator removes a market’s margin using proportional normalization. Convert each outcome’s decimal odds to implied probability, add those probabilities, then divide each by the total. The resulting percentages sum to 100%. These are market-derived fair probabilities under one margin model, not independently verified estimates of true probability.
What is the formula?
Fair probabilityᵢ = (1/dᵢ) ÷ Σ(1/d).
Can you show a worked example?
Two prices of −110 each imply 52.38%. Proportional margin removal produces 50% for each outcome.
What assumptions matter?
The proportional method assumes margin is distributed proportionally. Other methods can differ, especially in markets with longshots.
Can I explore stored DraftKings prices?
Yes. The odds versus multipliers explorer shows recorded sportsbook mainlines and their capture time. Rows older than 900 seconds are stale. Pick6 multipliers are not sportsbook odds or guaranteed payouts.
Is this an official DraftKings tool?
No. DraftKings API is independent and is not affiliated with or endorsed by DraftKings.
Independent; not affiliated with or endorsed by DraftKings. Educational calculations, not picks. Responsible gambling resources.
Build with the data
Read documented coverage, formats and account limits before using the API in your application.
Free plan, 50 requests a month, no card
curl --max-time 30 --fail-with-body 'https://draftkingsapi.com/api/v1/odds?sport=NBA' \
-H "X-User-Request: Compare sportsbook lines across games for a dashboard" \
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