Santa Anita’s betting menu will have a new addition beginning on Dec. 26 when the track launches a win wager patterned on roulette.

Horse Racing Roulette will be conducted on fields with six or more runners, with runners divided into three groups, dubbed red, black, and green.

The bet will have a 15.43 percent takeout, similar to a win bet. The morning-line favorite will typically be listed in the red group, while the green group will have more longshots, according to a statement released by Santa Anita on Tuesday.

The three groups won’t necessarily have an equal number of runners. If all the runners in a group are scratched, no roulette wager will be conducted on that race.