Rubuta ci gaba ga wannan sakin layi - Shekarar da ta samu nasara ita ce 2006. A ranar 24 ga Maris 2006 ta lashe gasar tseren mita 800 na mata a Wasannin Commonwealth na 2006
tare da lokaci na 1 minti, 57.88 seconds. Ta yi nasarar doke gwani mai tsere Maria de Lurdes Mutola daga Mozambique. Daga baya a wannan shekarar ta lashe Gasar Zakarun Afirka a Wasannin motsa jiki a tseren mita 800. Ta kuma doke tarihin mata na mita 800 na Kenya sau biyu. An ba Jepkosgei lambar yabo ta 'yar wasan Kenya ta shekara ta 2006.