Rubuta ci gaba don wannan sakin layi - Babban gasar farko ta Cherop ita ce Wasannin Afirka na 1999
tana da shekara 15, amma ba ta kai ga podium ba, ta zo a matsayi na hudu. Ita ce ta lashe lambar tagulla sama da mita 5000 a gasar zakarun duniya ta matasa ta 2000, inda ta gama a bayan Dorcus Inzikuru da Meseret Defar. Ta fara horo tare da 'Yan matan Sing'ore, a karkashin mai horar da gudu Boniface Tiren, kuma ta yi aiki tare da wasu matasa masu sa ran gudu, gami da zakaran duniya na gaba Janeth Jepkosgei da Vivian Cheruiyot. Raunin gwiwa ya yanke lokacinta na gudu a shekara ta 2001.