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Around 1:10 seconds. Im in eighth grade and my first time ever running the 400 was 1:07 seconds........ 57.2 secs (1984 by Vanessa Fielding at Pacific School Games). Records are here : http://www.schoolsport.edu.au/lib/pdf/sportsinfo/mf1075.pdf

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12y ago

What else can I help you with?