1975 USAC Championship Car season

The 1975 USAC Championship Car season consisted of 13 races, beginning in Ontario, California on March 2 and concluding in Avondale, Arizona on November 9. The USAC National Champion was A. J. Foyt and the Indianapolis 500 winner was Bobby Unser. Entrants (partial list)

TeamChassisEngineDriversRounds A.J. Foyt EnterprisesCoyoteFoyt A.J. Foyt 1, 3-13 All American RacersEagleOffenhauser Bobby Unser 2-3, 6-9, 11 Bob FletcherEagleOffenhauser Lee Kunzman 1, 3EagleOffenhauser Pancho Carter 1, 3-4, 6-13 MVSEagleOffenhauser Lee Kunzman 6 Alex MoralesEagleOffenhauser Jimmy Caruthers 2-4, 6, 8-12 GerhardtEagleOffenhauser Gary Bettenhausen 1, 3-4, 7-10, 13 Grant KingKingOffenhauser Bentley Warren 6, 8KingOffenhauser Sheldon Kinser 6, 8 Jerry O"Connell RacingEagleOffenhauser Bill Vukovich II 2-4, 6-11, 13EagleOffenhauser Mike Mosley 1, 3-10EagleOffenhauser Al Unser 12EagleOffenhauser Mario Andretti 13 Joe HuntEagleOffenhauser John Martin 13 Lindsey Hopkins RacingMcLaren (5) Riley (1, 3-4, 6-13) Offenhauser Roger McCluskey 1, 3-13 George WaltherMcLaren Offenhauser Salt Walther 2-9, 11-12 GerhardtEagleOffenhauser George Snider 9 Dick SimonEagleFoyt Dick Simon 2-13 Leader Card RacingEagleOffenhauser George Snider 2-13 Al LoquastoMcLarenOffenhauser Al Loquasto 2-6, 8-9, 11-13 John MartinMcLaren Offenhauser John Martin 1, 3-12 McLarenMcLarenOffenhauser Johnny Rutherford 2-13 Patrick RacingEagle (3-4) Wildcat (1, 5-13)Offenhauser (3-4) (DGS (1, 5-13) Gordon Johncock 1, 3-13Eagle (1-5, 10) Wildcat (6-9, 11-13)Offenhauser (1-5, 10) DGS (6-9, 11-13) Wally Dallenbach 2-13EagleOffenhauser Steve Krisiloff 2-13 Team PenskeMcLarenOffenhauser Tom Sneva 1, 3-6, 8-13McLarenOffenhauser Bobby Allison 2-3, 6, 8-9 Vatis EnterprisesFinley Offenhauser Lee Kunzman 8Finley (1, 3-5, 7-12) Eagle (6) Offenhauser Johnny Parsons 1, 3-12 Vel's Parnelli Jones RacingEagleOffenhauser Mario Andretti 3, 6, 8Eagle (1, 3, 6, 8) Parnelli (13)Offenhauser (1, 3, 6, 8) Cosworth (13) Al Unser 1, 3, 6, 8, 13 Volstedt EnterprisesVolstedtOffenhauser Tom Bigelow 2-3, 6-10, 13

Schedule and results All races running on Oval/Speedway.

Rnd Date Race name Track Location Pole position Winning driver 1AMarch 2 California 500 Qualification Heat 1Ontario Motor SpeedwayOntario, California A. J. Foyt A. J. Foyt 1B California 500 Qualification Heat 2 Bobby Unser Wally Dallenbach Sr. 2 March 9 California 500 A. J. Foyt A. J. Foyt 3 March 16 Bricklin 150 Phoenix International Raceway Avondale, Arizona Gordon Johncock Johnny Rutherford 4 April 6 Trenton 200 Trenton International Speedway Trenton, New Jersey Tom Sneva A. J. FoytNC April 27 World Series of Auto Racing Trenton International Speedway Trenton, New Jersey A. J. Foyt Johnny Rutherford 5 May 25 International 500 Mile Sweepstakes Indianapolis Motor Speedway Speedway, Indiana A. J. Foyt Bobby Unser 6 June 8 Rex Mays Classic Wisconsin State Fair Park Speedway West Allis, Wisconsin A. J. Foyt A. J. Foyt 7 June 29 Schaefer 500 Pocono International Raceway Long Pond, Pennsylvania Gordon Johncock A. J. Foyt 8 July 20 Norton 200 Michigan International Speedway Brooklyn, Michigan A. J. Foyt A. J. Foyt 9 August 17 Tony Bettenhausen 200 Wisconsin State Fair Park Speedway West Allis, Wisconsin Johnny Rutherford Mike Mosley 10 September 13 Michigan Grand Prix Michigan International Speedway Brooklyn, Michigan A. J. Foyt Tom Sneva 11 September 21 Trenton 150 Trenton International Speedway Trenton, New Jersey A. J. Foyt Gordon Johncock 12 November 9 Phoenix 150 Phoenix International Raceway Avondale, Arizona Gordon Johncock A. J. Foyt

Scheduled for 500 miles, stopped early due to rain.

Final points standings

Note 1: Bobby Allison and George Follmer are not eligible for points. Note 2: Jerry Grant scored points at Ontario but competed with an FIA license. Note 3: Bentley Warren scored 100 points at Pocono, but forfeited those points due to a rule violation.

Pos Driver ONTQ-H1 ONTQ-H2 ONT500 PHX1150 TRE1200 WSE INDY500 MIL1150 POC500 MIS1200 MIL2200 MIS2150 TRE2150 PHX2150 Pts 1 A. J. Foyt 1 1 3 1 4 3 1 1 1 20 7 2 1 4920 2 Johnny Rutherford 2 17 1 2 1 2 3 6 6 13 2 3 11 2900 3 Bobby Unser 10 2 1 2 22 5 3 2489 4 Wally Dallenbach Sr. 1 10 6 5 3 9 4 2 19 4 16 5 12 2305 5 Bill Vukovich II 4 23 4 9 6 7 3 3 8 11 4 2080 6 Tom Sneva 9 6 7 6 7 22 29 2 3 1 13 2 1830 7 Roger McCluskey 8 13 DNQ 7 6 5 8 4 12 19 5 6 18 1675 8 Steve Krisiloff 3 3 5 4 5 11 17 28 8 5 DNQ 15 20 1630 9 Pancho Carter 2 19 8 4 6 24 4 14 8 DNQ 8 1345 10 Gordon Johncock 5 15 2 10 2 31 14 20 11 2 6 1 23 1280 11 John Martin 6 5 13 9 8 27 15 7 21 7 18 8 17 1180 12 Mike Mosley 10 11 9 3 26 5 31 13 1 1020 13 Jimmy Caruthers 5 21 DNQ 14 8 7 6 4 7 930 14 Gary Bettenhausen 11 14 10 15 9 5 DNS 6 745 15 Lee Kunzman 3 4 DNQ 17 740 16 Bill Puterbaugh 7 9 9 560 17 Al Unser 7 26 16 32 4 5 450 18 George Snider DNS 20 18 8 10 22 400 19 Al Loquasto 15 7 11 DNQ DNQ 12 14 17 14 16 380 20 Eldon Rasmussen 7 9 24 19 16 12 21 275 21 Salt Walther 12 8 17 13 33 DNP 33 DNQ 22 18 260 22 Dick Simon 13 24 14 8 11 21 13 23 9 17 15 11 13 220 23 Mario Andretti 28 28 25 3 210 24 Spike Gehlhausen 10 10 15 19 10 14 165 25 Billy Scott 4 29 DNQ 120 26 Tom Bigelow 11 16 18 12 21 16 9 19 115 27 Johnny Parsons DNS 25 12 12 10 19 20 26 15 21 13 9 115 28 John Hubbard 14 Wth 21 10 10 16 DNQ 105 29 Larry Cannon DNQ 12 9 12 100 30 Jim McElreath 18 DNS 12 7 90 31 Tom Frantz 19 11 11 14 17 24 70 32 Sheldon Kinser 12 15 50 33 Lloyd Ruby 32 10 45 34 Jerry Karl 9 33 13 16 40 35 Billy Cassella 11 40 36 Bob Harkey DNS 30 16 10 30 21 15 14 - Bobby Allison 6 32 25 27 17 0 - George Follmer 8 DNQ Wth 0 - Bentley Warren 23 11 0 - Jerry Grant 16 12 20 14 18 DNS 0 - Rick Muther 27 DNQ 13 0 - Lee Brayton 14 22 0 - Chuck Gurney 15 15 Wth 18 0 - Mel Cornett 16 0 - Sam Sessions 17 0 - Larry McCoy 31 30 18 20 20 DNP 0 - Ed Finley 18 0 - Benny Rapp 19 0 - Frank Weiss 22 0 - Larry Dickson 22 0 - Mike Hiss 29 0 - Bill Simpson DNS Wth 0 - Dan Murphy DNP Wth 0 - Jim Hurtubise DNQ 0 - Graham McRae DNQ 0 - Bob Nagel Wth 0 - Jan Opperman DNQ 0 - Jigger Sirois Wth 0 - Jerry Sneva Wth 0 - Ken Nichols DNQ 0 - Jack Owens DNQ 0 - John Cannon DNP 0 - Michel Jourdain Sr. DNP 0 - Joe Leonard DNP 0 - Steve Chassey DNP 0 Pos Driver ONTQ-H1 ONTQ-H2 ONT500 PHX1150 TRE1200 WSE INDY500 MIL1150 POC500 MIS1200 MIL2200 MIS2150 TRE2150 PHX2150 Pts Color Result Gold Winner Silver 2nd place Bronze 3rd place Green 4th & 5th place Light Blue 6th-10th place Dark Blue Finished(Outside Top 10) Purple Did not finish(Ret) Red Did not qualify(DNQ) Brown Withdrawn(Wth) Black Disqualified(DSQ) White Did not start(DNS) Blank Did notparticipate(DNP) Not competing In-line notationBoldPole positionItalicsRan fastest race lap*Led most race laps Rookie of the Year Rookie

References

http://media.indycar.com/pdf/2011/IICS_2011_Historical_Record_Book_INT6.pdf (p. 221-222) https://www.champcarstats.com/year/1975.htm Retrieved August 9, 2025 https://www.oldracingcars.com/indy/1975/ Retrieved August 9, 2025 https://www.racingyears.com/results/1975/USAC Retrieved August 9, 2025

See also 1975 Indianapolis 500