1916 (Aug 11)
Ralph Mulford (USA)-Hudson (18m24.70s)
1917-1919 NO EVENT
1920 (Sep 6)
Otto Loesche (USA)-Lexington (22m25.40s)
1921 (Sep 5)
King Rhiley (USA)-Hudson (19m16.20s)
1922 (Sep 4)
Noel Bullock (USA)-Ford (19m50.90s)
1923 (Sep 3)
Glen Schultz (USA)-Essex (18m47.60s)
1924 (Sep 1)
Otto Loesche (USA)-Lexington (18m15.00s)
1925 (Sep 7)
Charles Myers (USA)-Chandler Special (14m48.40s)
1926 (Sep 6)
Glen Schultz (USA)-Stutz Special (18m19.40s)
1927 (Sep 5)
Glen Schultz (USA)-Stutz Special (18m01.00s)
1928 (Sep 3)
Glen Schultz (USA)-Stutz Special (17m41.60s)
1929 (Sep 2)
Edward Phillips (USA)-Shultz Special (18m22.80s)
1930 (Sep 1)
Glen Schultz (USA)-Stutz Special (18m08.70s)
1931 (Sep 7)
Charles Myers (USA)-Hunt Special (17m10.30s)
1932 (Sep 5)
Glen Schultz (USA)-Schultz Special (16m47.20s)
1933 (Sep 4)
Glen Schultz (USA)-Schultz Special (17m27.50s)
1934 (Sep 3)
Louis Unser (USA)-Stutz Special (16m01.80s)
1935 NO EVENT
1936 (Sep 7)
Louis Unser (USA)-Stutz Special (16m28.10s)
1937 (Sep 6)
Louis Unser (USA)-Perry Special (16m27.80s)
1938 (Sep 5)
Louis Unser (USA)-Loop Cafe Special (15m49.90s)
1939 (Sep 4)
Louis Unser (USA)-Snowberger (15m39.40s)
1940 (Sep 2)
Al Rogers (USA)-Coniff Special (15m59.90s)
1941 (Sep 1)
Louis Unser (USA)-Bowes Seal Fast (15m35.40s)
1942-1945 NO EVENT
1946 (Sep 2)
Louis Unser (USA)-Maserati (15m28.70s)
1947 (Sep 1)
Louis Unser (USA)-Maserati (16m34.77s)
1948 (Sep 6)
Al Rogers (USA)-Coniff Special (15m49.75s)
1949 (Sep 5)
Al Rogers (USA)-Coniff Special (15m54.60s)
1950 (Sep 4)
Al Rogers (USA)-Coniff Special (15m39.00s)
1951 (Sep 3)
Al Rogers (USA)-Coniff Special (15m39.70s)
1952 (Sep 1)
George Hammond (USA)-Dobry Offenhauser (15m30.65s)
1953 (Sep 7)
Louis Unser (USA)-Fed Auto Offy (15m15.40s)
1954 (Sep 6)
Keith Andrews (USA)-Joe Hunt Magneto (14m39.70s)
1955 (Sep 5)
Bob Finney (USA)-Dick Frenzel (14m27.20s)
1956 (Jul 4)
Bobby Unser (USA)-Unser Special (14m27.00s)
1957 (Sep 2)
Bob Finney (USA)-Frenzel Special (14m11.70s)
1958 (Sep 1)
Bobby Unser (USA)-Unser Special (13m47.90s)
1959 (Jul 5)
Bobby Unser (USA)-Unser Special (13m36.50s)
1960 (Jul 4)
Bobby Unser (USA)-Unser Special (13m28.50s)
1961 (Jul 4)
Bobby Unser (USA)-Unser Special (12m56.70s)
1962 (Jul 4)
Bobby Unser (USA)-Unser Special (12m05.60s)
1963 (Jul 4)
Bobby Unser (USA)-Sproul Chevrolet (12m30.60s)
1964 (Jul 4)
Al Unser Sr (USA)-Conze Offenhauser (12m24.50s)
1965 (Jul 4)
Al Unser Sr (USA)-Harrison Ford (12m54.30s)
1966 (Jul 4)
Bobby Unser (USA)-Sproul Chevrolet (12m23.80s)
1967 (Jun 25)
Wes Vandervoort (USA)-Rocky Mountain Chevrolet (12m46.30s)
1968 (Jun 30)
Bobby Unser (USA)-Rislone Chevrolet Special (11m54.90s)
1969 (Jun 29)
Mario Andretti (USA)-STP Special (12m44.07s)
1970 (Jul 4)
Ted Foltz (USA)-Chevrolet Special (12m41.09s)
1971 (Jul 11)
Ak Miller (USA)-Mustang (14m18.61s)
1972 (Jul 4)
Roger Mears (USA)-VW SS (13m26.83s)
1973 (Jul 4)
Roger Mears (USA)-Sprint Buggy VW (12m59.79s)
1974 (Jul 4)
Errol Kobilan (USA)-Chevy Champ (12m54.77s)
1975 (Jul 4)
Orville Nance (USA)-Young Chevy Sprint (12m36.65s)
1976 (Jul 4)
Rick Mears (USA)-Sauers (12m11.89s)
1977 (Jul 4)
Robert Herring (USA)-Malloy Chevy 500 (12m15.72s)
1978 (Jul 4)
Errol Kobilan (USA)-Chevy Champ (11m55.8s)
1979 (Jul 4)
Dick Dodge Jr (USA)-Wells Coyote (11m54.80s)
1980 (DATE)
Ted Foltz (USA)-Chevrolet (12m15.81s)
1981 (DATE)
Gary Lee Kanawyer (USA)-Newman/Greager-Porsche (12m03.96s)
1982 (DATE)
Bill Brister (USA)-Wells Coyote (11m44.82s)
1983 (Jul 10)
Al Unser Jr (USA)-Wells Coyote (11m38.30s)
1984 (Jul 8)
Bill Brister (USA)-Wells Coyote (11m44.49s)
1985 (Jul 14)
Michele Mouton (F)-Audi Sport Quattro (11m25.39s)
1986 (Jul 12)
Bobby Unser (USA)-Audi Sport Quattro (11m09.22s)
1987 (Jul 11)
Walter Rohrl (D)-Audi Sport Quattro (10m47.85s)
1988 (Jul 10)
Ari Vatanen (FIN)-Peugeot 405 T16 (10m47.22s)
1989 (Jul 9)
Robby Unser (USA)-Peugeot 405 T16 (10m48.34s)
1990 (Jul 29)
Robby Unser (USA)-Unser-Chevrolet (11m32.90s)
1991 (Jul 4)
David Donner (USA)-Donner-Dykstra-Chevrolet (11m12.40s)
1992 (Jul 4)
Robby Unser (USA)-Unser-Chevrolet (10m53.87s)
1993 (Jul 4)
Paul Dallenbach (USA)-David-Chevrolet (10m43.63s)
1994 (Jul 4)
Rod Millen (NZ)-Toyota Celica (10m04.06s)
1995 (Jul 4)
Nobuhiro Tajima (J)-Suzuki Escudo (7m52.97s)**
1996 (Jul 4)
Rod Millen (NZ)-Toyota Celica (10m13.64s)
1997 (Jul 4)
Rod Millen (NZ)-Toyota Celica (10m04.54s)
1998 (Jul 4)
Rod Millen (NZ)-Toyota Tacoma (10m07.70s)
1999 (Jul 4)
Rod Millen (NZ)-Toyota Tacoma (10m11.15s)
2000 (Jul 4)
Larry Ragland (USA)-GMC Envoy (11m17.66s)
2001 (Jun 30)
Gary Lee Kanawyer (USA)-Wells Coyote (10m39.76s)
2002 (Jun 29)
Per Eklund (S)-Saab 9-3 Viggen (11m13.24s)
2003 (Jun 28)
Paul Dallenbach (USA)-PVA 01 (11m34.70s)
2004 (Jun 26)
Robby Unser (USA)-Subaru Impreza WRX (11m47.28s)
2005 (Jun 25)
David Donner (USA)-Donner-Chevrolet (11m15.68s)
2006 (Jul 1)
Nobuhiro Tajima (J)-Suzuki Grand Vitara (7m38s)**
2007 (Jul 21)
Nobuhiro Tajima (J)-Suzuki XL7 (10m01.408s)
2008 (Jul 20)
Nobuhiro Tajima (J)-Suzuki XL7 (10m18.250s)
2009 (Jul 19)
Nobuhiro Tajima (J)-Suzuki SX4 (10m15.368s)
2010 (Jun 27)
Nobuhiro Tajima (J)-Suzuki SX4 (10m11.50s)
2011 (Jun 26)
Nobuhiro Tajima (J)-Suzuki SX4 (9m51.278s)
2012 (Aug 13)
Rhys Millen (NZ)-Hyundai Genesis Coupé #67 (9m46.164s)
2013 (Jun 30)
Sebastien Loeb (F)-Peugeot 208 T16 (8m13.878s)*
2014 (Jun 29)
Romain Dumas (F)-Norma M20 RD (9m05.801s)
2015 (Jun 28)
Dominic Dobson (D)-Radical SR8 (10m15.289s)
*outright hill record
**course shortened due to bad weather
Total races: 92
Winning drivers
10 wins-Bobby Unser
9 wins-Louis Unser
7 wins-Glen Schultz, Nobuhiro Tajima
5 wins-Rod Millen, Al Rogers
4 wins-Robby Unser
2 wins-Bill Brister, Paul Dallenbach, David Donner, Bob Finney, Ted Foltz, Gary Lee Kanawyer, Errol Kobilan, Otto Loesche, Roger Mears, Charles Myers, Al Unser Sr
1 win-Mario Andretti, Keith Andrews, Noel Bullock, Dominic Dobson, Dick Dodge Jr, Romain Dumas, Per Eklund, George Hammond, Robert Herring, Sebastien Loeb, Rick Mears, Rhys Millen, Ak Miller, Michele Mouton, Ralph Mulford, Orville Nance, Edward Phillips, Larry Ragland, King Rhiley, Walter Rohrl, Al Unser Jr, Wes Vandervoort, Ari Vatanen
Total winning drivers: 41
Winning nationalities
Finland-1 driver (Vatanen)
France-3 drivers (Dumas, Loeb, Mouton)
Germany-2 drivers (Dobson, Rohrl)
Japan-1 driver (Tajima)
New Zealand-3 drivers (Rh Millen, Ro Millen)
Sweden-1 driver (Eklund)
United States-1 driver (Andretti, Andrews, Brister, Bullock, Dallenbach, Dodge Jr, Donner, Finney, Foltz, Hammond, Herring, Kanawyer, Kobilan, Loesche, Rick Mears, Roger Mears, Miller, Mulford, Myers, Nance, Phillips, Ragland, Rhiley, Rogers, Schultz, Al Unser Jr, Al Unser Sr, B Unser, L Unser, R Unser, Vandervoort)
Total winning nationalities: 7