May 27, 1956             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Herb Thomas
June 24, 1956             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      John Kieper
August 26, 1956             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Royce Haggerty
September 23, 1956             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Lloyd Dane
April 28, 1957             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Art Watts
May 26, 1957             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Eddie Pagan
July 14, 1957             Portland Speedway, Portland, OR      NASCAR Grand National/Pacific Coast      Eddie Pagan
May 29, 1960             Portland Speedway, Portland, OR      Sprint Car      Ernie Koch
May 24, 1964             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Bill Amick
April 4, 1965             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Bill Amick
May 16, 1965             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Bill Amick
June 27, 1965             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Bill Amick
June 26, 1966             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Kuzie Kuzmanich
September 18, 1966             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Ray Elder
May 14, 1967             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Scotty Cain
June 30, 1968             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Jack McCoy
September 7, 1969             Portland Speedway, Portland, OR      NASCAR Pacific Coast Late Model      Scotty Cain
July 11, 1971       Rose City 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Hershel McGriff
June 25, 1972             Portland Speedway, Portland, OR      NASCAR Winston West Series      Hershel McGriff
September 10, 1972             Portland Speedway, Portland, OR      NASCAR Winston West Series      Hershel McGriff
July 1, 1973             Portland Speedway, Portland, OR      NASCAR Winston West Series      Hershel McGriff
September 9, 1973             Portland Speedway, Portland, OR      NASCAR Winston West Series      Hershel McGriff
July 7, 1974       Pepsi 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Jimmy Insolo
September 8, 1974             Portland Speedway, Portland, OR      NASCAR Winston West Series      Jimmy Insolo
July 4, 1975       Coca Cola 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Ernie Stierly
September 7, 1975       Coca Cola 150      Portland Speedway, Portland, OR      NASCAR Winston West Series      Bill Schmitt
July 4, 1976             Portland Speedway, Portland, OR      NASCAR Winston West Series      Ernie Stierly
September 12, 1976             Portland Speedway, Portland, OR      NASCAR Winston West Series      Harry Jefferson
July 4, 1977             Portland Speedway, Portland, OR      NASCAR Winston West Series      Chuck Bown
September 11, 1977             Portland Speedway, Portland, OR      NASCAR Winston West Series      Art Roth
July 4, 1978       Coca Cola 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Bill Schmitt
July 4, 1979       Kyte Coca-Cola 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Roy Smith
September 3, 1979       Rose City 100      Portland Speedway, Portland, OR      NASCAR Winston West Series      Ron Eaton
August 10, 1980       G.I. Joe's/Heidelberg Portland 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Bobby Allison
July 5, 1981       G.I. Joe's Portland 150      Portland Speedway, Portland, OR      NASCAR Winston West Series      Jim Robinson
July 4, 1982             Portland Speedway, Portland, OR      NASCAR Winston West Series      Ron Eaton
July 15, 1984       Permatex 150      Portland Speedway, Portland, OR      NASCAR Winston West Series      Derrike Cope
June 15, 1985             Portland Speedway, Portland, OR      USAC Supermodified      Jan Sneva
July 4, 1985       G.I. Joe's/Valvoline 201      Portland Speedway, Portland, OR      NASCAR Winston West Series      Jim Bown
August 2, 1987       Mike's Auto Parts 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Chad Little
September 7, 1987       Coors 150      Portland Speedway, Portland, OR      NASCAR Northwest Series      Kirk Rogers
July 10, 1988             Portland Speedway, Portland, OR      NASCAR Winston West Series      Derrike Cope
July 4, 1989             Portland Speedway, Portland, OR      NASCAR Winston West Series      Bill Schmitt
April 14, 1990       Winston 125      Portland Speedway, Portland, OR      NASCAR Northwest Series      John Dillon
July 1, 1990             Portland Speedway, Portland, OR      NASCAR Winston West Series      Roy Smith
June 30, 1991       Winston 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Mike Chase
June 28, 1992       Astro 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Bill Sedgwick
July 4, 1993       Mello Yello 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Ken Schrader
July 31, 1993       Valvoline 125      Portland Speedway, Portland, OR      NASCAR Northwest Series      Dan Press
September 25, 1993       Valvoline 125      Portland Speedway, Portland, OR      NASCAR Northwest Series      Tobey Butler
July 3, 1994       Talk 'n Toss 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Rick Carelli
August 19, 1994             Portland Speedway, Portland, OR      NASCAR SuperTruck      Rob MacCachren
May 5, 1995       Maxx Race Cards 200      Portland Speedway, Portland, OR      NASCAR SuperTruck Series      Mike Skinner
July 4, 1995       Reser's Fine Foods 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Ernie Cope
September 17, 1995       Plaid Pantry 250      Portland Speedway, Portland, OR      NASCAR Winston West Series      Doug George
May 4, 1996       Craftsman 200      Portland Speedway, Portland, OR      NASCAR Craftsman Truck Series      Ron Hornaday Jr.
June 1, 1996       Reser's Fine Foods 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Lance Hooper
May 3, 1997       Craftsman 200      Portland Speedway, Portland, OR      NASCAR Craftsman Truck Series      Rich Bickle
July 11, 1997       Pontiac Widetrack 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Butch Gilliland
April 25, 1998       Craftsman 200      Portland Speedway, Portland, OR      NASCAR Craftsman Truck Series      Stacy Compton
July 10, 1998       TCI Digital Cable 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Gary Smith
August 14, 1999       Grainger Industrial Supply 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Bill Sedgwick
June 23, 2000             Portland Speedway, Portland, OR      SRL Supermodified      Lonnie Adamson
July 4, 2000       NAPA Auto Parts 200      Portland Speedway, Portland, OR      NASCAR Winston West Series      Jeff Jefferson