The Kenyan athletics federation, Athletics Kenya, did not support her at first, thinking Loroupe too small and too thin. However, after she won a prestigious cross country barefoot race in 1988, this changed. She began to train to compete internationally the following year, earning her first pair of running shoes in 1989, which she wore only for particularly rough races. She was nominated for the junior race of the 1989 IAAF World Cross Country Championships finishing 28th. She competed again at the 1990 IAAF World Cross Country Championships, finishing 16th in the junior race.