Event 142 Men 400 Meter Hurdles 17-18 years old =============================================================== National: N 49.56 8/1/2007 Robert Griffin III, Copperas Name Year Team Finals =============================================================== Finals 1 Quincy Hall 98 Raytown, MO 53.12 2 Ardran Carr 97 Grand Prairie, TX 53.70 3 Joshua Holman 98 Missouri City, TX 54.38 4 Nicholas Hilson 97 Jonesboro, AR 54.74 5 Robert Miller 97 Baltimore, MD 55.01 6 Tahj Gayfield 97 St Louis, MO 56.38 7 Jahvante Marcelle 98 Bristow, VA 57.07 8 Jaelen Williams 98 Hampton, VA 57.09