Kenya’s Olympic champion Emmanuel Wanyonyi added the world crown to his collection with a hard-fought victory in the men’s 800 metres on Saturday here. 

Wanyonyi timed a championship record of 1min 41.86sec for gold, just four hundredths of a second ahead of Algeria’s Djamel Sedjati. Defending champion Marco Arop of Canada had to settle for bronze (1:41.95)