Football

I would propose that every play be reviewed by officials, using all available camera angles, to assure that no infraction of any rule goes undetected and unpunished. This will result in at least one penalty on every play, rendering player skill irrelevant and making the most frequent scoring play the 2-point safety. Negative bonus points would be applied to the team which commits the most penalties on a single play. Las Vegas could take bets on which team would earn those negative bonus points.

Football games would enter the realm of cricket games, which frequently take two or three days to play.