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400M from en.wikipedia.org
The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics ...
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Type, Progression, Mark, Wind, Competitor, DOB, Country, Venue, Date. World Records, 43.03, Wayde VAN NIEKERK, 15 JUL 1992, RSA, Estádio Olímpico, ...
400M from worldathletics.org
The 400m race is exactly one lap of a standard outdoor running track. Starting in staggered positions, the athletes run the entire race in a designated lane ...
400M from simplifaster.com
Koch's 400m record is 47.60. Naser finished stronger than Koch, but endurance got beat by speed. “The 30m fly is the #1 indicator of potential in the 100m dash ...
Once the 400m runner has reached the 200m, they should arrive around 1-2 seconds slower than their personal best 200m time. So for example, if a 400m runner is ...