1981 / Non-Championship - Sports
Jun
28
IX Norisring Trophäe
Norisring
Aug
30
III Lumbermens 500
Mid-Ohio Sports Car Course
Aug
30
X International Suzuka 1000 kms
Suzuka International Racing Course
Nov
6
I Castrol Kyalami 9 hours
Kyalami Grand Prix Circuit
Dec
1
1981 Gran Premio de Macau Sports
Circuito da Guia