Buuxi weedha soo socota: Chepkorir waxay ka mid noqotay orodyahannada marathon-ka ugu sarreeya adduunka iyada oo ku guuleysatay Marathon-ka nuska ah ee Berlin bishii Maarso 2010, iyada oo ku guuleysatay 69:43 daqiiqo si ay u garaacdo Eunice Kales. Waxay ku soo laabatay magaalada Jarmalka ee tartanka BIG 25 Berlin, waxayna gashay kaalinta saddexaad. Waxaa loo doortay in ay u tartanto Kenya
2010 IAAF World Half Marathon Championships laakiin dhaawac ayaa soo gaabiyay xilli ciyaareedkeedii ka hor inta aysan awoodin inay ka soo muuqato heerka sare ee caalamiga ah halkaas.