15th IAAF World Athletics Championships Beijing 2015 - Day Nine

BEIJING, CHINA - AUGUST 30: Gold medalists (L-R) Shericka Jackson of Jamaica, Stephenie Ann McPherson of Jamaica, Novlene Williams-Mills of Jamaica and Christine Day of Jamaica look to the scoreboard after the Women's 4x400 Relay Final during day nine of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 30, 2015 in Beijing, China. (Photo by Christian Petersen/Getty Images for IAAF)