linespy

devig / parlay / convert

runs in your browser. american, decimal or fractional odds.

Devigger

Every side of one market at one book. Get each side's fair chance, and what a price is worth against it.

Method

Fair parlay price, with correlation

Same-game legs are rarely unrelated. Set how linked they are and get the fair price.

How linked are the legs?0.25

Your estimate, not a measured number. Positive: the legs hit together, like a team's moneyline and its star's over. Negative works for two legs only.

Odds converter

Any format in, every format out.