Silver 1000 Late Model Challenge Series Sporting EventsMotor Rides & Races Northeast Minnesota Event Information Proctor Speedway 800 N. Boundary Avenue Proctor, MN 55810 (218) 341-9420 (Phone) View Website Send Email Facebook - link opens in a new tab Get Directions About End your summer with Proctor Speedway's Silver 1000 Late Model Challenge Series on Thursday, September 3, 2020. Dates The dates for this event have passed. No future dates are available at this time. What's Nearby About the Venue Return to previous page