Parlay Expected Value (EV) Calculator
Build a parlay and see the hit probability, fair odds, and expected value (EV) from our probabilities. Plug in the sportsbook's odds and we'll tell you whether that bet is +EV or −EV from our point of view. It's a free tool.
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Parlay hit probability
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Fair odds (1/p)
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Expected value (EV)
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※ Parlay probability assumes each leg is independent (correlated games introduce error). Our probabilities are derived transparently from structured factors and do not guarantee a win.
San Diego Padres @ Arizona Diamondbacks
Washington Nationals @ Philadelphia Phillies
Toronto Blue Jays @ Houston Astros
Las Vegas Aces @ Atlanta Dream
Phoenix Mercury @ Chicago Sky
San Francisco Giants @ Texas Rangers
Los Angeles Dodgers @ Chicago Cubs
Houston Dynamo FC @ New England Revolution
Pittsburgh Pirates @ Milwaukee Brewers
Seattle Storm @ New York Liberty
St. Louis Cardinals @ New York Yankees
Tampa Bay Rays @ Colorado Rockies