Rosie Ruiz cheated her way to victory in the Boston Marathon by joining the race near the finish line.
Dwight Howard was caught using Stickum, a banned substance, during an NBA game.
Badminton players intentionally threw matches in the 2012 Olympics to have better chances of winning.
The Spanish Paralympic basketball team included mentally-competent players with fake disabilities to improve their chances of winning.
Figure skater Tonya Harding was involved in a conspiracy to injure her competitor, Nancy Kerrigan, before a major competition.