yes it is, just work hard! and get in the weight room and work out your legs.
anythings possible, but do you have what it takes?
A 400m dash is 0.4km.
11.28 100m, 23.37 200m, 54.75 400m national records still holds the national junior records in 200 and 400m dash http://pinoyathletics.com/2012/07/18/lydia-de-vega-mercado-legends-of-track-and-field-rev3/
1km = 1000m so the 1500m only
Otis Harris
No, they do not run a 50 meter dash at either the USATF Junior Olympics or the AAU Junior Olympics.
Alberto Juantereno from Cuba won the 400m and 800m at the Montreal Olympic Games in 1976.
The 440-yard dash is about 8 feet farther than the 400m.
Tonique Williams-Darling of the Bahamas.
about 60 seconds.
She won a silver medal in the women's 400m dash.
Michael Johnson 43.84