The World Championships in Athletics is an event organized by the International Association of Athletics Federations. It is the largest event in the world after the Olympic Games, and the Football World Cup finals. Originally, it was organised every four years, but this changed in 1993, and it has since been organised biannually.
... from 18 to 24, 27.3% from 25 to 44, 28.7% from 45 to 64, and 13.9% who are 65 years of age or older. The median age is 41 years. For every 100 females there are 98.0 ...