He has competed at five editions of the IAAF World Cross Country Championships .
He is a two - time participant at the Summer Olympics ( 2008 and 2012 ) and four - times at the World Championships in Athletics ( 2009 , 2011 , 2013 and 2015 ) .
participant has competed at five editions of the IAAF World Cross Country Championships .
He is a two - time participant at the Summer Olympics ( 2008 and 2012 ) and four - times at the World Championships in Athletics ( 2009 , 2011 , 2013 and 2015 ) .