Rambai muchinyora ndima ino - Akaita mutambo wake wekutanga wepasi rose mumakwikwi evana vadiki pa2003 IAAF World Cross Country Championships, kwaakapedza ari pachinzvimbo chechishanu uye akahwina menduru yesirivheri yechikwata chevadiki pamwe naPeninah Jepchumba. Akakwikwidza mumisangano muSpain nePortugal muna 2004, achimhanya mumamita 1500 metres, 3000 metres uye vaviri ve10K vanomhanya. Gore rakatevera racho akarasikirwa nenzvimbo muchikwata chenyika mukutenderera nyika asi akaisa 3000 m yakanakisa ye8: 53.46 maminetsi paMusangano weGaz de France muParis. Mushure mekutora nzvimbo yechipiri paKenya Athletics Championships, Chebet aive neyekutanga yepamusoro yepamusoro mu2006 African Championships, kwaaive akahwina menduru yebronze kuseri kwevamwe vekuKenya Edith Masai naIsabella Ochichi. Muna 2007, haana kupedza kupisa kweMombasa pa2007 IAAF World Cross Country Championships
, asi akakunda munhangemutange yemamita 10 000. Akapedza ari wechipfumbamwe mumakwikwi emamita zviuru gumi paWorld Championships ya2007. Mumutambo wake wekupedzisira wegore, akabatsira Kenya kuti ive yechipiri paChiba Ekiden Relay, mushure mekumhanya makiromita mashanu.