http://www.UniversalSports.com 2013, Rome, Italy, IAAF Track and Field Diamond League, Amantle Montsho (BOT), the current world champ, has sweep the first half of the season with her 4th win with a world leading time of 49.87, besting the three Americans Francena McCorory, Natasha Hastings and Keshia Baker by .18 seconds. (Watch the full event at UniversalSports.com)