Dee ihe na-esote paragraf a - Koba mere ọtụtụ n'ime ihe ngosi mba ụwa ya n'etiti afọ 1990 maka Ukraine. Ọ bụ onye meriri ọla nchara na mita 10,000 na 1993 European Cup, ọ bụ ezie na nhọrọ ya maka ihe omume ahụ na 1993 World Championships na Athletics kwụsịrị n'ihi mmerụ ahụ. N'afọ 1994, ọ bụ onye otu ndị otu mba maka Yokohama Women's Ekiden, 1994 IAAF World Cross Country Championships na 1994 European Cross Country Championships (na-etinye nke iri na nke ikpeazụ). O duziri ọkwa maka ụmụ nwanyị Ukraine na 1995 IAAF World Cross Country Championships
N'afọ 1995, o meriri n'asọmpi European Cup n'asọmpi 5000m. A chụrụ ya n'ọsọ n'asọmpi nke ikpeazụ ya, na 1995 World Championships in Athletics 5000 m race.