Booking points are scores attributed to yellow and red cards in a football match to create an index that you can bet on. This index gives punters a way to bet on the total number of cards in a match and their colours (i.e. yellow or red cards) in a single wager.
Yellow cards are typically worth 10 points, straight red cards are 25 points, and two yellows for the same player resulting in a red card is worth a total of 35 points.