Chemosin's strong personal best from 2013 earned him a place for the 2014 IAAF World Half Marathon Championships, but he was the worst performer among the Kenyan team, finishing in 24th place more than two and a half minutes behind fellow Kenyan and race winner Geoffrey Kipsang Kamworor. His best result of the year came again at the Roma-Ostia race where he was fifth in a time of 60:24 minutes. He was again down the rankings at the Luanda Half Marathon, taking twelfth.