1981 IMSA Championship Races and Standings| Racing Years

Date	Circuit	Race
April 12	Road Atlanta Motorsports Center	1981 IMSA Road Atlanta 100 Miles
April 12	Road Atlanta Motorsports Center	1981 IMSA Road Atlanta GTU
April 26	Riverside International Raceway	III Riverside 6 hours
May 3	Laguna Seca Raceway	1981 IMSA Laguna Seca 100 Miles
May 3	Laguna Seca Raceway	1981 IMSA Laguna Seca GTU
May 24	Lime Rock Park	1981 IMSA Lime Rock 250 Miles
May 24	Lime Rock Park	1981 IMSA Lime Rock GTU
May 31	Mid-Ohio Sports Car Course	1981 IMSA Mid-Ohio 200 Miles
June 14	Brainerd International Raceway	1981 IMSA Brainerd
July 5	Daytona International Speedway (Road Course)	1981 IMSA Paul Revere 250 Miles
July 26	Sears Point Raceway	1981 IMSA Sears Point 100 Miles
July 26	Sears Point Raceway	1981 IMSA Sears Point GTU
August 2	Portland International Raceway	1981 IMSA Portland 100 Miles
August 2	Portland International Raceway	1981 IMSA Portland GTU
August 16	Mosport Park	VI Mosport 6 hours
September 13	Road Atlanta Motorsports Center	1981 IMSA Road Atlanta 150 Miles
September 13	Road Atlanta Motorsports Center	1981 IMSA Road Atlanta 2 GTU
September 27	Pocono Raceway (Road Course)	1981 IMSA Pocono 500
November 29	Daytona International Speedway	1981 IMSA Daytona Finale 250 Miles

1981 / IMSA SportsCar