What is a Quadrella?
A Quadrella (or 'Quaddie
') is a type of exotic horse racing or greyhound bet
. The bettor
must pick the winner
of a given set of four races. The greater the number of runners
selects, the more the bet
will cost. In horse racing the Quadrella is usually the last four races of a given event, whereas in greyhound racing this is usually races 5 to 8.