Mezue ahịrịokwu na-esonụ: Zeferino mechakwara na 1998,
1999 na 2003 IAAF World Half Marathon Championships na-agwụcha 117th, 91st na 70th n'otu n'otu ma mezue na 1999 na 2000 IAAF World Cross Country Championships <unk> Ọsọ ndị okenye ebe ọ kwụsịrị na 141st na 145th n'otu n'otu.