Ku dhammaystiro weedha soo socota: Kibiwott wuxuu bilaabay inuu ku tartamo wadada xirfadeed ee wadada Yurub ee 2006 ka dib markii uu ku jiray saddexda ugu sareysa ee Eldoret Half Marathon. Wuxuu ku guuleystay labada Prague Half Marathon iyo Turin Marathon isla sanadkaas wuxuuna kaalinta labaad ka galay Alexander the Great Marathon. Wax badan kama uusan guuleysan 2007, isagoo ku guuldareystay inuu dhammeeyo London iyo Prague Marathons, ka dibna wuxuu dhammeeyay 28-aad ee Frankfurt Marathon. Wuxuu ku soo laabtay qaab ciyaareedkiisii 2008 isagoo ku guuleystay Paris Half Marathon iyo guul kale oo ka timid Turin. Ku guuleysigiisa kaalinta labaad ee 59:44 daqiiqo ee tartanka Lille Half Marathon wuxuu xaqiijiyay xulashadiisa Kenya ee tartanka
2008 IAAF World Half Marathon Championships, halkaas oo uu kaalinta afaraad galay.