Mezue ahịrịokwu na-esonụ: Kosgei bidoro ọrụ mba ụwa ya dịka onye na-agba ọsọ ọsọ na steeplechaser. Ọ bịara bụrụ onye ama ama dịka onye na-eme egwuregwu n'afọ 1997 mgbe o nwetara ọla nchara n'asọmpi nke ndị na-eme egwuregwu n'afọ 1997.
1997 IAAF World Cross Country Championships, ọ bịakwara na 1997 IAAF Grand Prix Final maka 3000 mita steeplechase. O guzobere aha ya site n'itinye ihe ndekọ ụwa nke ndị na-eto eto maka ihe omume ahụ.