EUGENE, OR - JUNE 01: Francine Niyonsaba of Burundi wins the 800m during day 2 of the IAAF Diamond League Prefontaine Classic on June 1, 2013 at the Hayward Field in Eugene, Oregon. (Photo by Jonathan Ferrey/Getty Images)
EUGENE, OR - JUNE 01: Francine Niyonsaba of Burundi wins the 800m during day 2 of the IAAF Diamond League Prefontaine Classic on June 1, 2013 at the Hayward Field in Eugene, Oregon. (Photo by Jonathan Ferrey/Getty Images)