He finished fifth in the 5000 metres at the 2006 African Championships and eighth in the 10,000 metres at the 2007 World Championships. He won the San Silvestre Vallecana road race on December 31, 2007.
At the 2008 African Championships in Athletics he finished fifth in the 5000 metres .
He is married to Eunice Jepkorir, a steeplechase runner and Olympic silver medalist. .
He is not to be confused with Josephat Kiprono, another Kenyan runner.