Kenya 's David Lekuta Rudisha sets a new world record in the men 's 800 meters . Score: 6 His time shaved two hundredths of a second off the previous mark set by Wilson Kipketer . `` This brought back memories of the 2009 final for me . Women 's world 800m champion Caster Semenya won her third comeback race .
Kenya 's David Lekuta Rudisha sets a new world record in the men 's 800 meters . Score: 6 His time shaved two hundredths of a second off the previous mark set by Wilson Kipketer . Women 's world 800m champion Caster Semenya won her third comeback race .