Kammala wannan jumla: Ta fara aikinta yayin da take makarantar firamare ta Kitopen. Ta gama na biyu a gasar tsere ta kasar Kenya a 1991 a bayan Tegla Loroupe. An zabi Chepngeno don yin gasa a gasar
1991 IAAF World Cross Country Championships a Antwerp, Belgium, amma ya gama ne kawai na 46.