Buuxi weedha soo socota: Chepkok wuxuu ku dhashay Kapkitony oo ku taal Degmada Keiyo ee Gobolka Rift Valley ee Kenya. Wuxuu ku guuleystay billaddii lacagta ahayd ee tartankii da'yarta ee
2007 World Cross Country Championships, wuxuu ku dhammeystay kaalinta sagaalaad 2009 World Championships wuxuuna ahaa kii toddobaad ee 2009 World Athletics Final. Wuxuu ku guuleystey guul weyn oo 5000 m ah oo ka soo baxday IAAF Diamond League circuit 2010, isagoo ku guuleystey British Grand Prix.