Mezue ahịrịokwu na-esonụ: Rengeruk nwere ihe ịga nke ọma mbụ ya na 2013, na-emeri agbụrụ ndị ntorobịa Kenya tupu ọ merie Berhan Demiesa nke Etiopia iji were aha 3000 mita na 2013 World Youth Championships na Athletics. N'afọ na-eso ya, ọ bịara nke ise n'ọsọ ndị ntorobịa n'asọmpi
African Cross Country Championships, na-ekere òkè na ọlaedo otu. O buru ụzọ nweta mmeri na ule ndị ntorobịa nke Kenya na oge kachasị mma nke 3000 m nke 8:53.41 nkeji na IAAF Diamond League nke mbụ ya na Doha. Na 2014 World Junior Championships na Athletics, agbanyeghị, onye na-eme egwuregwu n'ụlọ America bụ Mary Cain karịrị ya, na-ahapụ Rengeruk na ọla ọcha ọla ọcha.