PrizePicks and Underdog EV Calculator (Fantasy Parlay EV)
Disclaimer: Sportsbooks are known to change their odds and payouts frequently. The odds and payouts used on this calculator may be out of date. Please verify the current payouts on the sportsbook website before making any decisions. If you notice any information is incorrect or wish to add a new sportsbook, please contact us at [email protected].
Select Sportsbook:
Select Parlay Type:
Select Number of Legs:
Results:
Expected Value:
PrizePicks Payout Visualization
What it does
The PrizePicks and Underdog EV Calculator, also called the Fantasy Parlay EV Calculator, works out the expected value (EV) of a pick'em entry from each leg's win chance and the app's payout table. It has the Power and Flex payout tables for PrizePicks and Underdog, plus tables for other pick'em apps. Positive EV means the entry pays more than it should, on average. Related: PrizePicks flex vs power break-even math.
How to use
Pick the app, the entry type (Power or Flex) and the number of legs.
Enter each leg’s win chance from 0 to 1 (0.55 = 55%). No-vig sportsbook odds are the usual source.
Click Calculate EV.
Worked example
PrizePicks 3-leg Power Play
Pays 6x if all three legs hit.
- Win chance per leg
- 0.60
- All three hit
- 0.60 × 0.60 × 0.60 = 0.216
- Expected return
- 0.216 × 6 = 1.296
- EV
- +29.6%
Legs are treated as independent, so for correlated legs read the result as a baseline.
FAQ
How is a DFS pick-em parlay different from a sportsbook parlay?
Pick'em apps pay a fixed multiplier from a payout table instead of multiplying each leg's odds, so the table sets the win rate you need.
Why does correlation matter so much in fantasy parlays?
Same-game stats move together, so correlated legs hit together more often than the plain product says. This calculator treats legs as independent, so read its EV as a baseline.
What per-leg win rate do I need to break even?
It depends on the payout and leg count. A 5-leg entry paying 10x needs each leg to hit about 63%.
How do I estimate a leg's win probability?
Use no-vig sportsbook odds on the same player prop, or projections. A pick'em line softer than the no-vig number is where +EV comes from.