<prompt> Rengeruk waba nempumelelo yakhe yokuqala ngo-2013, ngokuwina umjaho wentsha yaseKenya ngaphambi kokushaya uBerhan Demiesa wase-Ethiopia ukuze athathe isicoco samamitha ayi-3000 kuma-2013 World Youth Championships in Athletics. Ngonyaka olandelayo wabekwa endaweni yesihlanu emncintiswaneni we-junior ku-African Cross Country Championships  <response>: , ukwabelana ngegolide leqembu. Waqala ukunqoba emidlalweni yama-junior yaseKenya nge-3000 m engcono kakhulu yemizuzu engu-8: 53.41 emdlalweni wakhe wokuqala we-IAAF Diamond League eDoha. Emqhudelwaneni we-World Junior Championships ngo-2014, kodwa-ke, wadlulwa ngumdlali wasekhaya waseMelika uMary Cain, washiya uRengeruk ngomklomelo wesiliva. 