Career
His personal best for the event is 2:06:22 hours. He was the bronze medallist at the 2007 IAAF World Cross Country Championships and took the silver medal at the 2009 IAAF World Half Marathon Championships. Kipyego"s first international highlight came as a junior at the 2005 IAAF World Cross Country Championships, where he took the silver medal in the junior race to form a Kenyan sweep of the medals, alongside Augustine Choge and Barnabas Kosgei.
He also competed at the 2008 IAAF World Athletics Final that year, taking eighth place in the 5000 metres on the track.
lieutenant was his debut half marathon. He competed at the 2009 World Championships, finishing 5th in the 10,000 metres race.
Kipyego made his marathon debut in 2010 at the Rotterdam Marathon and finished fifth in a time of 2:07:01. He was runner-up at the Lille Half Marathon in September, losing out on the title to Wilson Kiprop by one second.
This served as his preparation for the 2010 Berlin Marathon, where he ran a time of 2:08:50 for sixth place
His first outing of 2011 came at the RAK Half Marathon and he took second place with a sub-hour clocking of 59:45 minutes.
He approached his best time at the 2011 Paris Marathon, where he was the runner-up behind Benjamin Kiptoo. He was among the fastest entrants at the 2011 Chicago Marathon and ran a personal best of 2:06:29 hours to take third place in a Kenyan podium sweep alongside Moses Mosop and Wesley Korir. He returned to the RAK Half Marathon in 2012 but only managed fourth place on that occasion.
Competing in Illinois for a second year running, he failed to make the podium at the 2012 Chicago Marathon, placing sixth, although his finishing time of 2:06:40 was still fast.
He was third behind his namesake Michael Kipyego at the 2013 Tokyo Marathon. He entered the marathon at the 2013 World Championships in Athletics but managed only twelfth place with a time of 2:14:01 hours.
He ran much faster at the Beijing Marathon in October, finishing as runner-up to Tadese Tola with a time of 2:07:19 hours. 3000 metres - 7:50.57 minimum (2006)
5000 metres - 13:09.96 minimum (2005)
10,000 metres - 26:59.61 minimum (2007)
Half marathon - 59.10 minimum (2009)
Marathon - 2:06:19 (2015).