Accumulator
Also called: Acca, Parlay, Multiple
A single bet combining several selections where every leg must win.
The legs' decimal odds are multiplied together, so the potential return climbs steeply — and so does the chance of losing everything, because one failed leg loses the whole stake.
Accumulator mathematics
Legs2.10 × 1.50 × 2.00
Combined odds6.30
Stake£10.00
Total return£63.00
Profit£53.00
Combined implied probability15.9%
Note: the same three selections as separate single bets would each settle independently — the accumulator trades a much lower chance of any return for a much larger one.
Related terms
Bets.tv is a demo environment showcasing simulated betting limits.