Career
Kipruto quickly rose through the younger categories of the sport, beginning from 2010. At the 2011 World Youth Championships in Athletics he and teammate Gilbert Kiplangat Kirui ran away from the pack from the very start. Kipruto edged out his compatriot with a time of 5:28.65 minutes to take the gold medal and move up to seventh on the all-time youth rankings.
At the start of 2012 he entered two high profile cross country races, winning the Lotto Cross Cup de Hannut and placing second at the Cross de San Sebastián.
He moved up to the 3000 m distance in the steeplechase and placed second at the Kawasaki Super Meet in Japan before running 8:08.92 minutes for fifth in his IAAF Diamond League debut in Doha. He ranked sixth in the world that year.
He also was runner-up at the Memorial van Damme and had a 3000 metres flat best of 7:44.09 minutes at the Rieti Meeting. Kipruto made his first Kenyan cross country team in 2013.
He performed one place better at the 2013 IAAF World Cross Country Championships, helping Kenya to the junior team silver medal.
Heading into the track season, he opened with a meet record of 8:01.16 minutes at the Shanghai Golden Grand Prix, winning the first leg of the 2013 IAAF Diamond League steeplechase. This ranked him second on the all-time junior lists behind Stephen Cherono. 3000 metres – 7:44.09 minimum (2012)
2000 metres steeplechase – 5:28.65 minimum (2011)
3000 metres steeplechase – 8:01.16 minimum (2013).