Super Bowl IV was the fourth AFL-NFL World Championship Game in professional American football, and the second one (after Super Bowl III) to officially bear the name "Super Bowl". This was the final AFL-NFL World Championship Game before the National Football League (NFL) and the American Football League (AFL) merged into one league after the season. Kansas City's Len Dawson became the fourth consecutive winning quarterback to be named Super Bowl MVP. He completed 12 of 17 passes for 142 yards and one touchdown, with one interception. Dawson also recorded three rushing attempts for 11 yards.