Kammala wannan jumla: A cikin kakar 2004, Erkesso ya dauki nauyin tseren dogon lokaci da gajeren lokaci a
2004 Gasar Cin Kofin Duniya ta IAAF a Brussels. Bayan kammala na biyar a tseren tsere kuma ta lashe lambar zinare ta kungiya, ta isa dandalin duniya a karon farko tare da lambar tagulla a cikin gajeren tsere da kuma wata lambar zinare ta kungiya. Ta lashe gasar IAAF ta Lotto Cross Cup Brussels ta tseren ƙasa sau biyu a jere a cikin 2005 da 2006. Ta sake yin tsere a tsere biyu a gasar tsere ta duniya ta 2006 ta IAAF, amma ba ta yi nasara ba a yunƙurin ta na biyu. Kodayake ta gama ta goma sha biyu kuma ta lashe lambar zinare ta tawagar a cikin gajeren tsere, ta kasance a baya a matsayi na 46 a tseren tsere.