Prepare for the Half Distance Triathlon Ohio with a Proven Training Plan The Ohio Half Distance Triathlon event begins with a 1.2-mile swim, starting with a rolling start off the Kelleys Island Ferry into the calm waters of Sandusky Bay, averaging 78°F. You’ll finish the swim at Paper District Marina, right by transition. The 56-mile bike course is a flat, fast, single-loop route through Erie and Sandusky Counties, featuring only 790 feet of elevation gain—perfect for building speed. The ...