He won his first international medal at the 2013 World Youth Championships in Athletics, taking the 800 m gold medal. He completed the first lap in a time of 48.63 seconds – faster than the first lap of David Rudisha's 800 metres world record.Kipketer holds on to win gold in 800m. IAAF (2013-07-13). Retrieved on 2014-05-31. He was chosen to run the 4×800 metres relay at the first ever IAAF World Relays in 2014 and running the anchor leg on the Kenyan team with Ferguson Cheruiyot Rotich, Sammy Kibet Kirongo, and Job Koech Kinyor, he won his first senior gold medal.Report: Men's 4x800m – Nassau 2014. IAAF (2014-05-24). Retrieved on 2014-05-31.
