Detroit Grand Prix ended in 1988.
Detroit Grand Prix was created in 1982.
Detroit Indy Grand Prix was created in 1982.
Tripoli Grand Prix ended in 1940.
Prost Grand Prix ended in 2002.
Portland Grand Prix ended in 2006.
Cologne Grand Prix ended in 1986.
Stewart Grand Prix ended in 1999.
Malta Grand Prix ended in 2001.
Grand Prix of Portland ended in 2007.
Austrian Grand Prix ended in 2003.
Grand Prix of Minnesota ended in 1998.
Grand Prix Masters ended in 2007.