Kemboi represented Kenya at the 2008 Beijing Olympics but managed only seventh – his worst performance on the global stage. He rebounded with a win at the 2009 World Championships (his first world gold medal) and took silver at the 2010 African Championships the following year. His 3000 m steeplechase best of 7:58.85 places him as the seventh fastest of all time.. IAAF. Retrieved on 2010-08-10. He is one of only three men to have won both Olympic and World golds in the event, along with Reuben Kosgei and Brimin Kipruto.