MELBOURNE, AUSTRALIA - MARCH 05: David Rudisha of Kenya wins the Men's 800 Metres during the IAAF World Challenge at Olympic Park on March 5, 2016 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)
MELBOURNE, AUSTRALIA - MARCH 05: David Rudisha of Kenya wins the Men's 800 Metres during the IAAF World Challenge at Olympic Park on March 5, 2016 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)