Calculate the combined odds, return and profit on a double — a bet on two selections that must both win.
A double is a bet on two selections where both must win for the bet to pay out. The winnings from the first selection are automatically staked on the second, which is why the odds multiply together.
You stake $10 on a double with decimal odds of 2.00 and 1.80. Combined odds = 2.00 × 1.80 = 3.60. Total return = $10 × 3.60 = $36.00, giving a profit of $26.00 if both selections win.
A double sits between a single bet and a treble or accumulator. It offers bigger returns than two singles, but both selections must win — if one loses, the whole double loses.