Most Consecutive Tour de France Victories: Lance Armstrong (7)
The American cyclist's story is about his comeback from stage three testicular cancer, which spread to his lungs, abdomen and brain. He underwent chemotherapy. The disease, in which doctors had given him only a 40 percent chance of survival, went into remission, and he resumed his cycling career in 1998. The following year, he won the first of seven straight Tour de France victories. In June 2012, he was charged by the U.S. anti-doping agency with using illicit performance enhancing drugs, based on blood samples from 2009 and 2010. He has denied the charges.