It was held in late October or early November . 16 from 8 nations competed in Hardrock Hundred Mile Endurance Run . 6 events were there in Hardrock Hundred Mile Endurance Run . Stade Roland Garros (since 1928) were the venues of Hardrock Hundred Mile Endurance Run . 12 (from 4 confederations) were the number of teams who competed in Hardrock Hundred Mile Endurance Run . Hardrock Hundred Mile Endurance Run was established on 1977 . The official site of Hardrock Hundred Mile Endurance Run is chicagomarathon.com
The sport Hardrock Hundred Mile Endurance Run had less than 6 contenders 