Yards After Catch (YAC) is the term used in American football for the distance gained by a receiver after catching a pass. Specifically, it is the forward yardage gained from the spot of the reception until the receiver is downed, runs out of bounds, scores, or loses the ball. YAC is sometimes referred to as RAC for Run After Catch. Its complement is Air Yards, the distance a pass travels forward of the line of scrimmage through the air until the spot of the reception.