400 metres 400 metres The 400 metres, or 400 metre dash, is a sprinting event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440 yard dash (402.336 m)—which is a quarter of a mile and was referred to as the 'quarter-mile'—instead of the 400 m (437.445 yards), though this
One Lap of America at a time) without the benefit of support crews. The field of competitors is divided into several classes based primarily on original manufacturers suggested retail prices and number of doors. Competitors may make any modifications to their vehicles as they see fit but must run on a single set of tires, typically provided by the race sponsor, throughout the entire event, and vehicles must remain street legal with the modifications. Race track events are time trials with up to eight cars on track at a time. Competition is for fastest time rather than wheel-to-wheel racing. The first One Lap in