he Janesville Subaru Devil’s Challenge Triathlon closes out the Janesville Subaru Wisconsin Tri Series! This scenic sprint tri in the middle of September is the perfect way to finish up your racing season. After a 1/4-mile swim in Devil’s Lake, challenge yourself with a hilly 15-mile bike ride through the beautiful Baraboo bluffs and a 5K run through the quiet park roads of Devil’s Lake State Park.