1983
Trans-Am Championship
1/5 Moroso 100 Miles
# 7 - 930 - 6°
Heimrath
# 36 - 924 Carrera GTR - 16°
Miller
# 70 - 911 SC - 14°
McDonald
# 90 - 911 SC - 18°
Schaefer
15/5 Summit Point 100 Miles
# 7 - 930 - 22°
Heimrath
# 36 - 924 Carrera GTR - 5°
Miller
# 72 - 911 SC - 15°
Hulse
6/6 Sears Point 100 Miles
# 36 - 924 Carrera GTR - 17°
Miller
# 56 - 911 SC - 21°
Durkheimer
12/6 Portland 100 Miles
# 10 - 934 - 19°
Klug
# 36 - 924 Carrera GTR - DNF
Miller
# 54 - 911 SC - DNF
Schroeder
# 56 - 911 SC - 7°
Durkheimer
# 57 - 911 SC - DNF
Shelton
# 58 - 911 SC - 18°
Shelton
# 69 - 911 SC - 22°
Feodorhoff
# 91 - 924 Carrera GTR - DNF
Hagestad
26/6 Kent
# 36 - 924 Carrera GTR -
2°
Miller
# 54 - 911 SC - 7°
Schroeder
# 56 - 911 SC - 11°
Durkheimer
# 58 - 911 SC - DNF
Shelton
# 59 - 911 SC - 19°
Feodorhoff
17/7 Mid-Ohio
# 36 - 924 Carrera GTR - 12°
Miller
# 90 - 934 - 17°
Klug
# 91 - 924 Carrera GTR - DNF
Hagestad
31/7 Road America
# 7 - 930 - 4°
Heimrath
# 34 - 924 Carrera GTR - DNF
Drolsom
# 36 - 924 Carrera GTR - DNF
Miller
# 91 - 934 - 27°
Klug
8/8 Brainerd
# 36 - 924 Carrera GTR - DNF
Miller
4/9 Trois-Rivières
# 7 - 911 SC Turbo - DNF
Heimrath
# 36 - 924 Carrera GTR - 6°
Miller
# 53 - 911 SC - 16°
Hochreuter
18/9 Sears Point 100 Miles
# 49 - 911 Carrera RSR - 18°
Copeman
# 56 - 911 SC - 14°
Durkheimer
# 91 - 924 Carrera GTR - DNF
Hagestad
# 96 - 911 SC - DNS
Herman
25/9 Riverside
# 55 - 934 - 20°
Borlase
# 91 - 924 Carrera GTR - 8°
Hagestad
# 96 - ? - DNS
Stevenson
# 98 - 934 - 22°
Klug
8/10 Caesars Palace
# 36 - 924 Carrera GTR - DNF
Miller
# 58 - 934 - 19°
Borlase