Mezue ahịrịokwu na-esonụ: Colman agbaala asọmpi IPC Athletics World Championships anọ. N'afọ 2002, o ritere ọla nchara n'asọmpi 400 m T53. N'afọ 2006, o ritere ọla nchara n'asọmpi 800 m T53 nke ụmụ nwoke. Na
Na 2011 Championships, o nwetara ihe nrite ọla edo na Men's 800m T53 na ọlaọcha na Men's 400 m T53. Na 2013 Championships na Lyon, France, o meriri ọla nchara na Men's 800m na 1500m T53 ihe omume. A họpụtara ya ịsọ mpi na asọmpi 2015 na Doha mana ọ kwụsịrị asọmpi ahụ.