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Online stopwatch helps to count up and record time, with the function of spliting intervals and record lap times. Also other kinds of timers and calculators on this site.
Who is the fastest person in the world?
Usain Bolt, a Jamaican sprinter is the first man to hold both the 100 metres and 200 metres world records since fully automatic time measurements became mandatory in 1977. Along with his teammates, he also set the world record in the 4×100 metres relay. So he can be widely regarded as the fastest person ever.
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