What are the false start rules at the Olympics?. Block starts are used in events that are no more than one lap: 100m, 200m and 400m flat; hurdles over 100m (women), 110m (men) and 400m distances.

Track position can be a nightmare; getting forward in the pack will be a matter of timing and luck. It is a headache of a race — appropriately as sponsored, the Goody's Fast Relief 500.