Kammala wannan jumla: Cheromei ya lashe lambar tagulla a gasar zakarun duniya na matasa kuma ya lashe gasar zakarun duniya na matasa
Gasar tseren kasa ta duniya a shekarar 1991 yana da shekara 13. Ta lashe gwajin Kenya don Gasar Cin Kofin Duniya ta 1991, amma an dauke ta da ƙuruciya don yin gasa a Tokyo. A lokacin ne Sister Christine Heverin ta horar da ita daga Makarantar Sakandaren 'Yan mata ta Singore.