Free tool

Same Game Multi Calculator

Calculate the combined odds, implied probability, and expected value of a same game multi (parlay) across multiple legs.

Core formula

Combined odds = odds_1 x odds_2 x ... x odds_n

Build a same game multi

Leg 1

DescriptionDecimal oddsYour estimated probability (%)

Leg 2

DescriptionDecimal oddsYour estimated probability (%)

Total stake (AUD)

Output

Combined decimal odds2.97

Implied probability33.67%

Your estimated probability33.67%

Potential payout$148.50

Expected value$0.00

Bookmaker margin0.00%

At your estimated probabilities, this multi is negative EV. Consider whether the bookmaker margin is too high.

Odds Cascade

Player 20+ points1.80 → cumulative 1.80

Team to win1.65 → cumulative 2.97

Use Notes

Bookmaker SGM odds often include significant margin on top of each leg.

If your estimated true probabilities differ from implied odds, this calculator highlights whether the multi is positive expected value.