Kammala wannan jumla: Ta gama na bakwai a tseren tsere mai tsawo a
Gasar tseren tsere ta duniya ta 2004, yayin da kungiyar Kenya, wacce Jepkorir ta kasance wani bangare, ta lashe lambar azurfa a gasar kungiyar. Ta lashe gasar Parelloop 10K a tseren a Netherlands a shekarar 2005. Ta gama goma sha huɗu a Gasar Tsere ta Duniya ta 2006, tana taimaka wa ƙungiyar Kenya ta lashe gasar ƙungiya. Ta lashe 2007 Cross Internacional de la Constitución.