Whakaotihia te rerenga e whai ake nei: I angitu a Rengeruk i te tau 2013, i te wikitoria i te whakataetae whakamatautau taiohi o Kenya i mua i te wikitoria i a Berhan Demiesa o Etiopia ki te wikitoria i te 3000 mita i te 2013 World Youth Championships in Athletics. I te tau e whai ake nei, ka noho ia ki te tuarima i te whakataetae rangatahi i te
He toa o Awherika Cross Country, e tohatoha ana i te koura kapa. I whakawhiwhia e ia he wikitoria i nga whakamatautau rangatahi o Kenya me te 3000 m pai o te 8:53.41 meneti i tana timatanga IAAF Diamond League i Doha. I te 2014 World Junior Championships in Athletics, heoi, i kaha atu ia i te kaitakaro o Amerika a Mary Cain, ka waiho a Rengeruk me te mētara hiriwa.