9. NASCAR Cheating Scandal
In the final NASCAR race of the 2013 season, with several drivers vying for a spot in the Chase for the Sprint Cup playoffs, two fishy incidents took place. In one, Clint Bowyer seemingly went into an intentional spin, resulting in a caution flag that would bump Ryan Newman out of the lead, allowing Bowyer's teammate Martin Truex Jr. to get enough points to secure a spot in the 12-driver Chase. Then it was also revealed that two teams colluded to have David Gilliland slow down near the end of the race so that Joey Logano could gain the necessary points to get him into the Chase and bump out Jeff Gordon. NASCAR penalized Boywer and Truex's team, Michael Waltrip Racing, eliminating Truex from the Chase in favor of Newman. In Gordon's case, the Chase field was expanded to 13 cars so that he could participate.