1976 SCCA/USAC F5000 Championship
|
Horst Kroll
|
6
|
Kroll Auto Service
|
U
|
|
1975 SCCA/USAC F5000 Championship
|
Horst Kroll
|
6
|
Kroll Auto Service
|
U
|
|
1974 SCCA/USAC F5000 Championship
|
Horst Kroll
|
7
|
Kroll Auto Service
|
U
|
|
|
Horst Kroll
|
7
|
Kroll Auto Service
|
U
|
|
|
Horst Kroll
|
6
|
Kroll Auto Service
|
U
|
|
|
Horst Kroll
|
8
|
Kroll Auto Service
|
U
|
|
1970 SCCA Formula A Continental Championship
|
Horst Kroll
|
8
|
Kroll Auto Service
|
U
|
|
1969 SCCA Formula A Continental Championship
|
Horst Kroll
|
8
|
Kroll Auto Service
|
U
|
|