It was held in late October or early November . The venue for Hardrock Hundred Mile Endurance Run was Stade Roland Garros (since 1928) . 12 (from 4 confederations) were the number of teams who competed in Hardrock Hundred Mile Endurance Run . 6 events were there in Hardrock Hundred Mile Endurance Run . 16 from 8 nations competed in Hardrock Hundred Mile Endurance Run . Hardrock Hundred Mile Endurance Run was established on 1977 . The sport has the official site chicagomarathon.com
Hardrock Hundred Mile Endurance Run was held at North Greenwich Arena (trampoline, artistic) on 20 July – 2 August