 As an example, the census at Lobo Village in Eldoret, a wild cross-country hosting location near Eten, showed eight full days in January of this year that were classified as unhealthy for athletes training there. Bernardo Uma is an endurance athletics coach and environmental scholar. The data has been very helpful. So on more than one occasion we've been changing location and the timing as well. Where we started sports start by 8, we ended up starting by 10.