skeg777, I think Curtis has a '73 Yamaha SR clone with a Yamaha engine. No Polaris.
1. Curtis Pederson of Fargo ND on a Yamaha 2. Joe Burch of Rosebush MI on a Polaris 3. Paul Diefenthaler of Manitowoc WI on a PolarisCurtis also won in 2017.Joe Burch lead all but the last lap.