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Build an accumulator that's actually priced correctly

Most accumulator calculators multiply probabilities together and call it a day. That's wrong — when you pick both a home win and over 2.5 goals in the same match, those outcomes are correlated. The goals that win the match also make up the total.

We hold the full scoreline distribution every forecast is built from, so we can tell you the real probability when legs are correlated. Naive calculators can't do that — they'd give you a misleading number that assumes independence when it doesn't exist.

Add selections from the board and this page will show you what your combination is actually worth, including the part everyone else gets wrong.