Calculate combined odds, potential payout, and implied probability for multi-leg parlays. Add up to 20 selections.
A parlay (or accumulator) combines multiple selections into one bet. All legs must win for the bet to pay out. The combined odds are calculated by multiplying each selection's decimal odds together.
For example, three legs at 1.80, 2.10, and 1.50 give combined odds of 1.80 × 2.10 × 1.50 = 5.67. A £10 stake would return £56.70 if all three win.
The implied probability drops sharply with each leg added — a 3-leg parlay at even odds (2.00 each) has only a 12.5% implied probability. This is why bookmakers love parlays.