1964 United States Road Racing Championship
The 1964 United States Road Racing Championship season was the second season of the Sports Car Club of America's United States Road Racing Championship. It began March 1, 1964, and ended September 13, 1964, after ten races. A second GT class for cars under two liters of displacement was added. Separate races for sportscars and GTs were held at eight rounds, while two rounds were combined races. Jim Hall won the season championship.
Schedule
| Rnd | Race | Length | Class | Circuit | Location | Date |
| 1 | USRRC Augusta | GT | Augusta International Raceway | Augusta, Georgia | March 1 | |
| 1 | USRRC Augusta | Sports | Augusta International Raceway | Augusta, Georgia | March 1 | |
| 2 | USRRC Pensacola | GT | Corry Field | Pensacola, Florida | April 5 | |
| 2 | USRRC Pensacola | Sports | Corry Field | Pensacola, Florida | April 5 | |
| 3 | Riverside Grand Prix | GT | Riverside International Raceway | Riverside, California | April 26 | |
| 3 | Riverside Grand Prix | Sports | Riverside International Raceway | Riverside, California | April 26 | |
| 4 | USRRC Monterey | GT | Laguna Seca Raceway | Monterey, California | May 3 | |
| 4 | USRRC Monterey | Sports | Laguna Seca Raceway | Monterey, California | May 3 | |
| 5 | Pacific North West Grand Prix | GT | Pacific Raceways | Kent, Washington | May 10 | |
| 5 | Pacific North West Grand Prix | Sports | Pacific Raceways | Kent, Washington | May 10 | |
| 6 | Watkins Glen Sports Car Grand Prix | GT | Watkins Glen Grand Prix Race Course | Watkins Glen, New York | June 28 | |
| 6 | Watkins Glen Sports Car Grand Prix | Sports | Watkins Glen Grand Prix Race Course | Watkins Glen, New York | June 28 | |
| 7 | USRRC Greenwood | All | Greenwood Roadway | Indianola, Iowa | July 19 | |
| 8 | USRRC Meadowdale | GT | Meadowdale International Raceway | Carpentersville, Illinois | August 9 | |
| 8 | USRRC Meadowdale | Sports | Meadowdale International Raceway | Carpentersville, Illinois | August 9 | |
| 9 | USRRC Mid-Ohio | GT | Mid-Ohio Sports Car Course | Lexington, Ohio | August 30 | |
| 9 | USRRC Mid-Ohio | Sports | Mid-Ohio Sports Car Course | Lexington, Ohio | August 30 | |
| 10 | Road America 500 | All | Road America | Elkhart Lake, Wisconsin | September 13 |
Season results
Overall winner in bold.| Rnd | Circuit | Sports +2.0 Winning Team | Sports 2.0 Winning Team | GT +2.0 Winning Team | GT 2.0 Winning Team | Results |
| Rnd | Circuit | Sports +2.0 Winning Driver | Sports 2.0 Winning Driver | GT +2.0 Winning Driver | GT 2.0 Winning Driver | Results |
| 1 | Augusta | #97 Shelby American | #77 Scuderia TinCan | #15 Shelby American | Porsche | Results |
| 1 | Augusta |  Dave MacDonald | Charlie Hayes |  Ken Miles | Bruce Jennings | Results |
| 2 | Pensacola | #66 Chaparral Cars | Lotus | #14 Shelby American | Lotus-Ford | Results |
| 2 | Pensacola | Jim Hall | Ed Hugus | Ken Miles | John Whitmore | Results |
| 3 | Riverside | #9 Nickey Chevrolet | Frank Arciero | #50 Shelby American | Porsche | Results |
| 3 | Riverside | Skip Hudson | Bobby Unser | Ken Miles | Scooter Patrick | Results |
| 4 | Laguna Seca | #366 Chaparral Cars | #77 Scuderia TinCan | Shelby | Porsche | Results |
| 4 | Laguna Seca | Jim Hall | Charlie Hayes | Ed Leslie | Don Wester | Results |
| 5 | Kent | #14 Shelby American | Lotus-Climax | #50 Shelby American | Porsche | Results |
| 5 | Kent | Dave MacDonald | Tony Settember | Ken Miles | Don Wester | Results |
| 6 | Watkins Glen | #66 Chaparral Cars | #71 Scuderia TinCan | #98 Shelby American | Stoddard Racing Team | Results |
| 6 | Watkins Glen | Jim Hall | Charlie Hayes | Ken Miles | Chuck Stoddard | Results |
| 7 | Greenwood | #96 Shelby American | #71 Ed Wechsler | #98 Shelby American | #15 Alan Mann | Results |
| 7 | Greenwood | Ed Leslie | Bill Wuesthoff | Ken Miles | John Whitmore | Results |
| 8 | Meadowdale | #66 Chaparral Cars | #7 Robert Bosch | #98 Shelby American | Stoddard Racing Team | Results |
| 8 | Meadowdale | Jim Hall | Joe Buzzetta | Ken Miles | Chuck Stoddard | Results |
| 9 | Mid-Ohio | #67 Chaparral Cars | #71 Robert Bosch | #99 Shelby American | #17 Robert Bosch | Results |
| 9 | Mid-Ohio | Hap Sharp | Bill Wuesthoff | Bob Johnson | Bill Wuesthoff | Results |
| 10 | Road America | #2 Mecom Racing Team | #79 Edward Weschler, Jr. | #99 Shelby American | #5 Stoddard Racing Team | Results |
| 10 | Road America | Walt Hansgen | Bill Wuesthoff Joe Buzzetta | John Morton Skip Scott Ken Miles | Chuck Stoddard | Results |