Parlay Value Calculator
See whether your parlay actually has value by comparing your book's payout to fair no-vig prices.
Parlays are not automatically bad.
- •your odds are better than fair odds
- •margin is low
- •or your book quotes relative to the market
Enter fair odds and your book's odds per leg
Using Pinnacle no-vig as the fair price benchmark. No bookmaker margin is included.
Using fair odds isolates real value from bookmaker margin.
Add at least 2 legs to see results.
With no edge you just pay the book's margin every leg, so −4% compounds across 3 legs into roughly −12%.
A genuine edge compounds the same way: +2.5% on each of 3 legs builds to roughly +7.8%.
Soft books pack a fat margin into every leg, so −10% compounds across 3 legs into roughly −28%.
Small differences compound aggressively in parlays -- for better or worse.
- Parlays increase variance dramatically.
- Margin compounds on every leg.
- Most recreational parlays are negative EV.
- Sharp parlays exist -- but require pricing discipline.
- One mispriced leg can sink the whole ticket.
- Adding legs for a bigger payout usually lowers your EV.
Only the relationship between fair odds and book odds determines value. A huge payout on legs the book has over-margined is still a losing bet — and a modest payout on legs you priced sharper than the book is a winning one.
Like what you see? Log this bet in the Bet Tracker and watch your edge play out over time.
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