Duncan Kibet

[2] He did not run competitively until after encouragement from his elder brother Luke Metto, who had some success as a runner at the turn of the century.

[3] His younger brother Shadrack Biwott got a scholarship in the USA and arranged for Kibet to run some races there.

[3] Kibet won the inaugural Rock 'n' Roll Half Marathon in San Jose in 2006 by running 1:00:22.

It was then the 2nd fastest half marathon time in the United States, after Haile Gebrselassie, who had run faster earlier that year.

[5] Kibet also won the 2007 Beach to Beacon 10k in a time of 27:51, besting a fast field over a tough, hilly course.

Duncan and Luke have a combined personal best marathon time of 4:15:24, a "world record" for siblings.