1981 / IMSA SportsCar
Apr
12
1981 IMSA Road Atlanta 100 Miles
Road Atlanta Motorsports Center
Apr
12
1981 IMSA Road Atlanta GTU
Road Atlanta Motorsports Center
Apr
26
III Riverside 6 hours
Riverside International Raceway
May
3
1981 IMSA Laguna Seca 100 Miles
Laguna Seca Raceway
May
3
1981 IMSA Laguna Seca GTU
Laguna Seca Raceway
May
24
1981 IMSA Lime Rock 250 Miles
Lime Rock Park
May
24
1981 IMSA Lime Rock GTU
Lime Rock Park
May
31
1981 IMSA Mid-Ohio 200 Miles
Mid-Ohio Sports Car Course
Jun
14
1981 IMSA Brainerd
Brainerd International Raceway
Jul
5
1981 IMSA Paul Revere 250 Miles
Daytona International Speedway (Road Course)
Jul
26
1981 IMSA Sears Point 100 Miles
Sears Point Raceway
Jul
26
1981 IMSA Sears Point GTU
Sears Point Raceway
Aug
2
1981 IMSA Portland 100 Miles
Portland International Raceway
Aug
2
1981 IMSA Portland GTU
Portland International Raceway
Aug
16
VI Mosport 6 hours
Mosport Park
Sep
13
1981 IMSA Road Atlanta 150 Miles
Road Atlanta Motorsports Center
Sep
13
1981 IMSA Road Atlanta 2 GTU
Road Atlanta Motorsports Center
Sep
27
1981 IMSA Pocono 500
Pocono Raceway (Road Course)
Nov
29
1981 IMSA Daytona Finale 250 Miles
Daytona International Speedway