Buuxi weedha soo socota: Waxay markii ugu horreysay ka soo muuqatay tartanka caalamiga ah ee tartanka yaryar ee 2003 IAAF World Cross Country Championships, halkaas oo ay ku dhammaysay kaalinta shanaad waxayna ku guuleysatay billaddii qalinka ee kooxda yaryar Peninah Jepchumba. Waxay ku tartantay shirarka Spain iyo Portugal 2004, waxay ku orodday 1500 mitir, 3000 mitir iyo labo 10K. Sannadkii xigay waxay seegtay booska xulka qaranka ee dalka oo dhan laakiin waxay dejisay 3000 m ugu fiican 8:53.46 daqiiqo Meeting Gaz de France ee Paris. Kadib markii ay kaalinta labaad ka gashay tartanka fudud ee Kenya, Chebet waxay markii ugu horreysay ka gashay tartankii ugu sarreeyay ee tartanka fudud ee Afrika 2006, halkaas oo ay ku guuleysatay billad naxaas ah oo ka dambaysay dadka kale ee reer Kenya Edith Masai iyo Isabella Ochichi. Sanadkii 2007, kuma aysan dhameysan kuleylka Mombasa ee
2007 IAAF World Cross Country Championships, laakiin waxay ku guuleysatay 10,000 m. Waxay kaalinta sagaalaad ka gashay orodka 10,000 m tartankii 2007 ee adduunka. Safarkeedii ugu dambeeyay ee sanadka waxay Kenya ka caawisay inay kaalinta labaad ka gasho Chiba Ekiden Relay, iyadoo ku orday lugta 5 km.