Wrestling is one of the oldest combat sports and is popular with millions of people. Wrestling is a contact sport that includes clinches, fights, takedowns, joint locks, pins, and punches, among other things. Wrestling was employed as a competitive sport at the Olympics as well as entertainment for the rich in ancient Greece. A 100-meter sprint is the most common approach to track the growth of sports. About the early twentieth century, the world record for men's 100m was around 10.8. Sports progress finally led to Usain Bolt's 9.58 world record in 2009, a 1.2 second drop.