Great Deer Chase will be held Saturday, August 15th, 2020 in Calumet, Michigan. The Great Deer Chase is a mountain bike race that is run on a special breed of trails. It's fun for everyone - from first-timer to expert. Each year the 15- and 30-mile races begin at 11:00 am ET. The kids races will start at 9:00 am ET.mountain bike race that is fun for everyone - from first-timer to expert.