Caleb Mwangangi Ndiku, born in Machakos, is a Kenyan middle and long distance runner. Caleb, the son of a Javelin thrower; David Ndiku, decided not to follow his father and focused on running instead.
He began his career in domestic Cross country running competitions at the Athletics Kenya series meeting in Meru where he was fifth in the junior men’s race at the age of sixteen.He was selected for the 2009 World Youth Championships in Athletics with a personal best run in the 1500m race at the Kenyan youth trials. At the championships in Brixen, he ran 3:38.42 to win a silver medal behind compatriot Gideon Kiage Mageka. Ndiku returned to Kenyan cross country circuit at the end of the year, and finished fourth at another Athletics Kenya series race in Nairobi.
Ndiku earned himself a place on the Kenyan junior men’s team for the 2010 IAAF World Cross Country Chsmpionships with a third place finish in the junior race at the Kenya National Cross Country Championships. In the world junior men’s race in Bydfoszcz the following month, he formed part of the leading pack before quickening the pace to establish a significant lead. He won the junior title and also headed the Kenyan runners to the team gold as the country grabbed the top four spots. Ndiku took his second title of the year at the 2010 World Junior Championships in Athletics, where he ran a personal best of 3:37.30 minutes to win the 1500 m world junior crown. He won the Most Promising Kenyan Sportsman of the Year award at the end that December.
He began competing in senior competitions the following year and was runner-up at the Trofeo Alasport cross country in March, second only to the newly elected world champion Imane Merga. On 27 July 2014. Ndiku won the final 5000 meter race at the 2014 Commonwealth Games.