The different race walking competitions
Just like all the disciplines governed by the International Association of Athletics Federations (IAAF), race walking competitions are divided into several different trials.
On a national level, there are the 3000 and 5000 m track events, and 10, 20 and 50 km road races. On an international level, the 10, 20 and 50 km events are part of the World Championships, but only the last two feature in the Olympic Games.
Just like running, there are also ultra race walking events (from 150 to 450 km), which are more a test of human endurance than sporting events.