The Reno-Tahoe Odyssey Relay Run Adventure (RTO) is a relay from Reno to Lake Tahoe and back to Reno making a large 178 mile loop around the Reno-Tahoe region. The relay starts at Wingfield Park along the Truckee River in downtown Reno, passes through Truckee, Tahoe City, South Lake Tahoe, Genoa, Carson City and Virginia City before returning to Reno and finishing at Idlewild Park.

The course is divided into 36 legs or segments, with each leg averaging about 5 miles.