Depending on height, age, and track conditions, anywhere from 57 to 62 seconds.
The record is 50.74 seconds set by Monique Henderson of Cerritos, California on 3 June 2000.
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Around 1:10 seconds. Im in eighth grade and my first time ever running the 400 was 1:07 seconds
well in the 100, anthing under 15 is awesome, or anything close to it. The 200 i am not sure of and the 400 should be a sprint the whole time, good scores or under a minute