Accumulator margin by number of legs
What it means: every leg you add makes the bet more expensive on average, not just riskier.
Guides · Parlays
A parlay, called an accumulator in most of the world, combines several selections into one bet. The odds multiply, so the payout grows fast, but every leg must win.
The margin multiplies too. Below we show how much each extra leg costs and how to work out a parlay's payout.
Short answer
It pays more when it wins, but you pay the margin on every leg. At 5% per leg, three legs cost about 14.3% of the stake on average and five legs about 22.6%. Singles are cheaper.
Worked example
Three legs at 1.50, 1.80 and 2.00: 1.50 × 1.80 × 2.00 = 5.40.
৳100 at 5.40 returns ৳540 if all three win.
At 5% per leg the margin is about 14.3%, against 5% on a single.
Pattern
What it means: every leg you add makes the bet more expensive on average, not just riskier.
Calculated: 1 − (1 − margin per leg) ^ legs.
Glossary
One bet with several selections. All must win; one loss and the whole bet loses.
Multiply the decimal odds of the legs. Three legs at 1.50 give 1.50 × 1.50 × 1.50 = 3.375.
The margin compounds. Three legs at 5% each carry about 14.3% in total, five legs about 22.6%.
Only where the bookmaker allows it, usually as a bet builder. Linked outcomes in one match are priced differently from separate matches.
That leg is usually removed and the parlay settles on the others at lower odds. Check the rules.
No. The Gambling Prevention Act 2026, passed on 1 July 2026, replaced the Public Gambling Act 1867 and makes online gambling and online betting offences, with prison terms of up to five and seven years respectively, or fines, or both. A bookmaker's foreign licence does not change this. See our responsible gambling page.