Cards betting explained

Cards markets apply Over/Under and Handicap betting to the number of yellow and red cards shown in a match. Card counts depend heavily on the referee's individual tendencies and the fixture's rivalry or stakes, which is why they can move independently of how the match itself is going.

Card counts depend heavily on which referee is assigned and how they tend to officiate, information that's often factored inconsistently, or not at all, into a book's automated card-market pricing. That inconsistency is why cards can be one of the markets most prone to mispricing, even though sample sizes here stay smaller.