Mezue ahịrịokwu na-esonụ: N'asọmpi Cross Country World Championships nke 2003, Chemjor bịara nke ise n'ọsọ ahụ dị ogologo, ebe ìgwè ndị Kenya, bụ́ nke Chemjor so na ya, nwetara ihe nrite ọlaọcha n'asọmpi ìgwè. O sonyere na asọmpi ọkara marathon nke ụwa n'afọ 2001 na
Afọ 2003. O merikwara na 2003 Berlin Half Marathon.