| 1973 |
Enduro Grand Nationals |
| Ontario Motor Speedway |
Ontario, CA |
| Finish |
Driver |
Hometown |
Kart |
Engine |
| 1 |
| Bobby Shiffert |
Visalia, CA |
ARM |
Komet |
| 2 |
| Rick Williams |
Topeka, KS |
Hornet |
Komet |
| 3 |
| Brian Dinius |
Indianapolis, IN |
Hegar |
Komet |
| 4 |
| Wes Graves |
Ft. Wayne, IN |
Hornet |
Komet |
| 5 |
| Rick Chavez |
Rialto, CA |
Bug |
Komet |
| 6 |
| Brad Cole |
Rochester, MI |
IKS |
Komet |
| 7 |
| Tim Holt |
Las Vegas, NV |
Red Devil |
Komet |
| 8 |
| Tom Pinkowsky |
Vancouver, WA |
Bullet |
Komet |
| 9 |
| Robert Maynard, Jr. |
Clackmas, OR |
Hegar |
Komet |
| 10 |
| Darrell Beer |
Redwood City, CA |
Special |
Komet |
| 1 |
| Pat O'Brian |
La Habra, CA |
Hartman |
Mc |
| 2 |
| Clint Burrows |
Sacramento, CA |
Special |
Mc |
| 3 |
| Doug Henline |
Anaheim, CA |
Bullet |
Mc |
| 4 |
| Don Walls |
Huntington Beach, CA |
Red Devil |
Mc |
| 5 |
| Neal Morgan |
San Angelo, TX |
Special |
Mc |
| 6 |
| John Beaver |
Los Angeles, CA |
Caretta |
Mc |
| 7 |
| Roger Long |
Des Moines, IA |
Kobra |
Mc |
| 8 |
| Jerry Osterkamp |
Corona, CA |
Margay |
Mc |
| 9 |
| Larry Piper |
Pleasanton, CA |
Red Devil |
Mc |
| 10 |
| Jack Nelson |
El Monte, CA |
| 1 |
| Terry Hegar |
Milwaukie, OR |
Hegar |
Komet |
| 2 |
| Mark Maitland |
Tacoma, WA |
Hegar |
Komet |
| 3 |
| Emerson Dismore |
Greenfield, IN |
Hornet |
Komet |
| 4 |
| Bruce Swanhuyser |
Los Angeles, CA |
Red Devil |
BM |
| 5 |
| Lake Speed |
Jackson, MS |
Invader |
Komet |
| 6 |
| Terry Gunn |
Manhattan Beach, CA |
Red Devil |
Komet |
| 7 |
| Ron Mitchell |
Los Angeles, CA |
Red Devil |
Komet |
| 8 |
| Bruce Pfister |
Fresno, CA |
Hornet |
Komet |
| 9 |
| Ken Kvamme |
Napa, CA |
Kobra |
Komet |
| 10 |
| Rusty Fetter |
Berwick, PA |
Red Devil |
Komet |
| 1 |
| Richard Mahaffay |
San Marino, CA |
| 2 |
| Roy Chiappe |
Harbor City, CA |
Bullet |
Mc |
| 3 |
| Shane McDonald |
Houston, TX |
Hornet |
Mc |
| 4 |
| Jeff Estes |
Rantoul, IL |
Genee |
Mc |
| 5 |
| Arnold Pinkowsky |
Vancouver, WA |
Red Devil |
Mc |
| 6 |
| Michael Thiele |
Garden Grove, CA |
Caretta |
Mc |
| 7 |
| Chuck Bertrand |
Milwaukie, OR |
Hornet |
Mc |
| 8 |
| Mark Dismore |
Greenfield, IN |
Hornet |
Mc |
| 9 |
| Chuck Pittenger |
Chatsworth, CA |
Margay |
Mc |
| 10 |
| Jim Amos |
Kansas City, KS |
Hornet |
Mc |
| 1 |
| Scott Pruett |
Roseville, CA |
Special |
Mc |
| 2 |
| Wes Graves |
Ft. Wayne, IN |
Bullet |
Mc |
| 3 |
| Jeff Tuttle |
Des Moines, IA |
Hornet |
Mc |
| 4 |
| Bill Cuddy |
Glendora, CA |
Bullet |
Mc |
| 5 |
| Mark Livesay |
Ann Arbor, MI |
Margay |
Mc |
| 6 |
| Rod Hendon |
Kansas City, MO |
Hornet |
Mc |
| 7 |
| Bart Sheldon |
Sunland, CA |
Hartman |
Mc |
| 8 |
| Tim Holt |
Las Vegas, NV |
Red Devil |
Mc |
| 9 |
| Jeff Taylor |
Des Moines, IA |
Hornet |
Mc |
| 10 |
| Kevin Dominguez |
Las Vegas, NV |
IKS |
Mc |
| 1 |
| Virginia Hendon |
Kansas City, MO |
Hornet |
Komet |
| 2 |
| Jim Wester |
Garland, TX |
Hornet |
Komet |
| 3 |
| Kevin Cogan |
Torrance, CA |
Bullet |
Komet |
| 4 |
| Kathey Hartman |
Montrose, CA |
Hartman |
Komet |
| 5 |
| Ed Hundley |
Long Beach, CA |
IKS |
Komet |
| 6 |
| Jack West |
Portland, OR |
Hegar |
Komet |
| 7 |
| George Ito |
Oxnard, CA |
Red Devil |
Komet |
| 8 |
| Gary Bystrom |
Chicago, IL |
Hornet |
Komet |
| 9 |
| Kevin Jackson |
Omaha, NE |
Caretta |
Komet |
| 10 |
| Steve Ptacek |
Seattle, WA |
Special |
Komet |
| 1 |
| John Beaver |
Los Angeles, CA |
Caretta |
Mc |
| 2 |
| Mark Dismore |
Greenfield, IN |
Hornet |
Mc |
| 3 |
| Hollis Brown |
Simi Valley, CA |
Bug |
Mc |
| 4 |
| Wally Baynes |
Inglewood, CA |
IKS |
Mc |
| 5 |
| Gary Hartman |
Santa Ana, CA |
Hegar |
Mc |
| 6 |
| Dennis Kolp |
Lynn, IN |
Hornet |
Mc |
| 7 |
| Doug Henline |
Anaheim, CA |
Bullet |
Mc |
| 8 |
| Mike Van Kralingen |
Torrance, CA |
Red Devil |
Mc |
| 9 |
| Johnny Teflos |
Houston, TX |
Hornet |
Mc |
| 10 |
| Mike Baldus |
Belton, MO |
Hornet |
Mc |
| 1 |
| Mike McAndrews |
Omaha, NE |
Hornet |
B-Bomb |
| 2 |
| Don Shipps |
Cincinnati, OH |
Margay |
BM |
| 3 |
| Don Tamburo |
Westminster, CA |
Rupp |
BM-130 |
| 4 |
| Ken Kvamme |
Napa, CA |
Kobra |
B-Bomb |
| 5 |
| Lee Ewert |
Garden Grove, CA |
Bug |
Mc |
| 6 |
| Ron Miller |
La Habra, CA |
Hornet |
Mc |
| 7 |
| Bruce Kemppainen |
Kent, WA |
Hegar |
B-Bomb |
| 8 |
| Scott Ovel |
Cedar Rapids, IA |
Hornet |
B-Bomb |
| 9 |
| Harwood Brown |
Allen Park, MI |
Caretta |
B-Bomb |
| 10 |
| Mark Maitland |
Tacoma, WA |
Hartman |
B-Bomb |
| 1 |
| Bill Rozhon |
Rialto, CA |
Mole |
B-Bomb |
| 2 |
| Pat Patterson |
Oklahoma City, OK |
Special |
B-Bomb |
| 3 |
| Nan Livesay |
Ann Arbor, MI |
Mole |
B-Bomb |
| 4 |
| Bill Gregory |
Ontario, CA |
Mole |
B-Bomb |
| 5 |
| Robert Griggs |
San Bernadino, CA |
Mole |
B-Bomb |
| 6 |
| James Haney |
Rialto, CA |
Mole |
BM-130 |
| 7 |
| Gerald Stresser |
Covina, CA |
Caretta |
BM-130 |
| 8 |
| George Giannini |
Malibu, CA |
Seed |
Komet |
| 9 |
| Barry Blume |
El Monte, CA |
Special |
Komet |
| 10 |
| Frank Musil |
Vancouver, BC, Canada |
Eliminator |
BM |
| 1 |
| Jimmy Pyle |
Glendale, CA |
Hartman |
Komet |
| 2 |
| Bud Roll |
St. Louis, MO |
Margay |
Komet |
| 3 |
| Pat O'Brian |
La Habra, CA |
| 4 |
| Bruce Hill |
Topeka, KS |
Rupp |
BM |
| 5 |
| Terry Hannum |
Huntington Beach, CA |
Kobra |
Komet |
| 6 |
| Sam Winkler |
Corona, CA |
Bug |
Mc |
| 7 |
| Ray Bobo |
San Rafael, CA |
Hovey |
BM |
| 8 |
| Eldon Callen |
Fenton, MO |
Margay |
Komet |
| 9 |
| Clint Burrows |
Sacramento, CA |
Special |
Mc |
| 10 |
| Robert Bowen |
Lakewood, CA |
Dart |
Mc |
| 1 |
| Rod Whorton |
South Gate, CA |
ARM |
Mc |
| 2 |
| Gary Hartman |
Santa Ana, CA |
Hegar |
Mc |
| 3 |
| Mark Dismore |
Greenfield, IN |
Hornet |
Mc |
| 4 |
| Tom Holt |
Las Vegas, NV |
ARM |
Mc |
| 5 |
| Larry Gioe |
Indianapolis, IN |
Hornet |
Mc |
| 6 |
| Linda Baldus |
Benton, MO |
Hornet |
Mc |
| 7 |
| Tom Siebler |
San Diego, CA |
Kondly |
Mc |
| 8 |
| Ruben Serrano |
Rialto, CA |
DL-3 |
Mc |
| 9 |
| John Beaver |
Los Angeles, CA |
Caretta |
Mc |
| 10 |
| Jim Ellis |
Hugo, OK |
Hornet |
Mc |
| 1 |
| Jeff Brown |
Allen Park, MI |
Margay |
BM-130 |
| 2 |
| Terry Ives |
Citrus Heights, CA |
IMC |
B-Bomb |
| 3 |
| Richard Sallman |
Indianola, IA |
Margay |
B-Bomb |
| 4 |
| Bud Roll |
St. Louis, MO |
Margay |
B-Bomb |
| 5 |
| Phil Reed |
Las Cruces, NM |
Margay |
B-Bomb |
| 6 |
| Jack Nelson |
El Monte, CA |
| 7 |
| Gary Dellinger |
Westwood, KS |
Margay |
BM |
| 8 |
| Pat Willey |
Allen Park, MI |
Rupp |
B-Bomb |
| 9 |
| Pat O'Brian |
La Habra, CA |
| 10 |
| Robert Bowen |
Lakewood, CA |
Dart |
Mc |
| 1 |
| Jim Russell |
Grandview, MO |
Hornet |
Komet |
| 2 |
| Mark Maitland |
Tacoma, WA |
Hegar |
Komet |
| 3 |
| Don Grenier |
Burbank, IL |
Magnum |
Komet |
| 4 |
| Mike Burris |
Fountain Valley, CA |
ARM |
Komet |
| 5 |
| Terry Hegar |
Milwaukie, OR |
Hegar |
Komet |
| 6 |
| Dennis Kolp |
Lynn, IN |
Hornet |
Komet |
| 7 |
| Duane Owens |
Culver City, CA |
Red Devil |
Komet |
| 8 |
| Hollis Brown |
Simi Valley, CA |
Bug |
Komet |
| 9 |
| Lynn Haddock |
Chattanooga, TN |
Hegar |
Komet |
| 10 |
| Donald Holmboe |
Portland, OR |
Red Devil |
Komet |
| 1 |
| Kevin Jackson |
Omaha, NE |
Caretta |
Komet |
| 2 |
| George Ito |
Oxnard, CA |
Red Devil |
Komet |
| 3 |
| Dave Knapp |
Manteca, CA |
Invader |
Komet |
| 4 |
| Vince Reichman |
San Francisco, CA |
Hartman |
Komet |
| 5 |
| Rusty Moose |
Gibralter, MI |
Margay |
Komet |
| 6 |
| Steve Matteson |
Oregon City, OR |
| 7 |
| Dick Chavez |
Rialto, CA |
Hornet |
Komet |
| 8 |
| Gary Parker |
San Dimas, CA |
Hornet |
Komet |
| 9 |
| Randy Allen |
Southgate, MI |
Hartman |
BM |
| 10 |
| Jeff Estes |
Rantoul, IL |
Genee |
Mc |
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