Honours: Bronze medals in 400m and 4x400m at 2010 Africa Championships; bronze medallist in 400m hurdles and 4x400m at 2014 Africa Championships. 35th in 400m hurdles at 2012 London Olympics. 15th in 4x400m at 2014 World relays; sixth in 400m hurdles at 2014 Commonwealth; 34th in 400m, 8th in 400m hurdles; 13th in 4x400m relays at 2010 World Junior Championships.
Mucheru is the most experienced in the 400m hurdles, having dashed to personal best 48.92 to finish second during the World Championships trials. He will be making his first appearance at the Worlds even though he fell in the first round (50.33) at the 2012 London Olympics before reaching the finals at the 2014 Commonwealth to wind sixth in 49.99.