To win an Exacta, you must select first and second in correct order.
An Exacta bet is available on every race provided there are at least three or more runners.
There are three ways to take an Exacta bet:
For a Standard Exacta, just choose the first two place getters past the post, in correct order. As long you selected the two runners that finish first and second in the correct order, you will collect the Exacta dividend.
With a Boxed Exacta you can choose as many runners as you like, providing two of your selections finish first and second you win the Exacta. The more runners you ‘Box’ in an Exacta, the more combinations you get.