Athletics Pan American Games 2007 at Rio de Janeiro (bra) Women: 400 m Hurdles July 25: Final: 1. Sheena Johnson (usa) 54.64 2. Nickiesha Wilson (jam) 54.94 3. Nicole Leach (usa) 54.97 4. Shevon Stoddart (jam) 55.42 5. Andrea Blackett (bar) 56.02 6. Lucimar Teodoro (bra) 56.58 7. Janeil Bellille (tri) 57.42 8. Daimy Pernia (cub) 59.71