Jim Cope's Swift DB-2
Howard Cherry's March 76B
Josh Boller's Chevron B29
Jonathan Burke's Brabham BT40
Ben Sinnott's Lola T-91/90
Howard Katz's TOJ SC205
Paul Gelpi's Lola T-86/90
Jerry Edquist's Carbir CS2
James King's McLaren M21
Ralph LaMacchia's Carbir CS2
Robert Boller's Ralt RT-1
Duncan Dayton's Chevron B23
James Maetzold's March 80A
Walter Vollrath's Chevron B23