1977 is when Hardrock Hundred Mile Endurance Run was established  . late October or early November was when it was held . 16 from 8 nations were the competitors in Hardrock Hundred Mile Endurance Run . The venue for Hardrock Hundred Mile Endurance Run was Stade Roland Garros (since 1928) . The no. of events in sport was 6 . 12 (from 4 confederations) teams participated in Hardrock Hundred Mile Endurance Run . The official site of Hardrock Hundred Mile Endurance Run is chicagomarathon.com
Information about Hardrock Hundred Mile Endurance Run could be found at chicagomarathon.com