The payoff on a winning selection varies according to the odds.
Bet on Car Racing Example :
To wager on auto racing, you typically pick the winner of the race.
Typically 20-30 drivers will be listed along with a field (all others).
For example, if you wager $10 on Kyle Busch and he wins the the race, you win $80 plus your $10 back totaling $90.
Auto racing match-ups pit two drivers against each other in head-to-head wager. The driver with the better finish in the race wins the match-up. Sometimes multiple drivers are listed in a group where the best finish in the group wins the wager.
In the example, a wager on Jimmie Johnson for $13 wins $10, returning $23.
Wagering $10 on Kyle Busch pays $11 plus your $10 back for a total of $21.
Other props may also be posted such as the over/under on the number of cautions in the race or which car manufacturer wins.
Lines can be found on other series and open wheel races.