Pari gbolohun ti o tẹle: Ni ọdun 2015, Korir dije ninu
2015 IAAF World Cross Country Championships. Àwọn ojúewé wọ̀nyí jápọ̀ mọ́: O ṣe iranlọwọ fun ẹgbẹ Bahraini lati wa ni ipo 3rd ni ipo idije Awọn ọkunrin agbalagba, fifi 4 si ẹgbẹ ati 18 lapapọ ni akoko 36:27.