The 1990 Trans-Am Series was the 25th running of the Sports Car Club of America's Trans-Am Series. Tommy Kendall won his first of four driver's championships, driving a Spice Engineering-run Chevrolet Beretta.
| Rnd | Date | Circuit | Location | Winning driver | Winning vehicle |
| 1 | March 10 | Streets of Phoenix | Phoenix, Arizona |  Robert Lappalainen | Ford Mustang |
| 2 | May 6 | Sears Point International Raceway | Sonoma, California |  Darin Brassfield | Oldsmobile Cutlass |
| 3 | June 3 | Addison Airport | Addison, Texas | Irv Hoerr | Oldsmobile Cutlass |
| 4 | June 16 | Streets of Detroit | Detroit, Michigan | Scott Sharp | Oldsmobile Cutlass |
| 5 | June 23 | Portland International Raceway | Portland, Oregon | Darin Brassfield | Oldsmobile Cutlass |
| 6 | July 7 | Burke Lakefront Airport | Cleveland, Ohio | Tommy Kendall | Chevrolet Beretta |
| 7 | July 15 | Streets of Des Moines | Des Moines, Iowa | Tommy Kendall | Chevrolet Beretta |
| 8 | July 29 | Road Atlanta | Braselton, Georgia | Tommy Kendall | Chevrolet Beretta |
| 9 | August 11 | Watkins Glen International | Watkins Glen, New York | Chris Kneifel | Chevrolet Beretta |
| 10 | August 19 | Circuit Trois-Rivières | Trois-Rivières, Quebec | Tommy Kendall | Chevrolet Beretta |
| 11 | August 25 | Streets of Denver | Denver, Colorado | Tommy Kendall | Chevrolet Beretta |
| 12 | September 9 | Mosport Park | Bowmanville, Ontario | Dorsey Schroeder | Ford Mustang |
| 13 | September 15 | Mid-Ohio Sports Car Course | Lexington, Ohio | Darin Brassfield | Oldsmobile Cutlass |
| 14 | September 22 | Road America | Elkhart Lake, Wisconsin | Tommy Kendall | Chevrolet Beretta |
| 15 | November 4 | Streets of St. Petersburg | St. Petersburg, Florida | Chris Kneifel | Chevrolet Beretta |
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Championship standings (Top 10)
[edit]
Tommy Kendall 
Robert Lappalainen 
Ron Fellows