Hardrock Hundred Mile Endurance Run was established on 1963 . It was held in 11 August – 28 August . The sport has the official site chicagomarathon.com . 136 from 25 nations competed in Hardrock Hundred Mile Endurance Run . 17 were the number of teams who competed in Hardrock Hundred Mile Endurance Run . Riocentro – Pavilion 6 were the venues of Hardrock Hundred Mile Endurance Run
138 players competed in the Hardrock Hundred Mile Endurance Run