1985 IMSA GT Championship season Schedule Schedule

| Race | Length_ | Class_ | Circuit | Date_ |
|---|---|---|---|---|
| G.I. Joe`s Grand Prix | 200km | GT | Portland International Raceway | July 28 |
| G.I. Joe`s Grand Prix | 300km | Proto | Portland International Raceway | July 28 |
| Ford California Grand Prix | 300km | Proto | Sears Point Raceway | August 4 |
| Ford California Grand Prix | 100km | GT | Sears Point Raceway | August 4 |
| Löwenbräu Classic | 500 Miles | All | Road America | August 25 |
| Grand Prix at Pocono | 500km | All | Pocono Raceway | September 8 |
| Serengeti Drivers New York 500 | 500km | All | Watkins Glen International | September 29 |
| Columbus Ford Dealers 500 | 1 Hour | GT | Columbus street course | October 5 |
| Columbus Ford Dealers 500 | 500km | Proto | Columbus street course | October 6 |
| Eastern 3 Hours of Daytona | 3 Hours | All | Daytona International Speedway | December 1 |