1978 - Trans-Am Mosport

19 August 1978 - Mosport Park, Canada

Ludwig Heimrath, Sr second in a Porsche 935, 37.811s behind the winning Chevrolet Corvette C3 driven by Greg Pickett

Overall - 2nd : TA-II - 2nd

No.	Car	#	Class	Drivers	Entrant	Pos	Class	Grid	Notes
7	Porsche 935	930 770 0958	TA-II	Ludwig Heimrath, Sr (CDN)	Heimrath Racing Services (CDN)	2nd	2nd	1st	40 laps
57	Porsche 935	930 770 0951	TA-II	Monte Shelton (USA)	Porsche+Audi Northwest (USA)	4th	4th	4th	39 laps
13	Porsche 935	930 670 0180	TA-II	Hal Shaw, Jr. (USA)	Hal Shaw Racing Ore House (USA)	7th	6th	6th	38 laps
94	Porsche 911 Carrera RSR		TA-II	Klaus Bytzek (CDN)	Bytzek Automotive (CDN)	14th	8th	13th	37 laps
91	Porsche 911 Carrera RSR		TA-II	Roger Schramm (USA)	Framm Promotions (USA)	15th	9th	23rd	36 laps
85	Porsche 934/5	930 770 0952	TA-II	Bruce Leven (USA)	Bayside Disposal Racing Team (USA)	16th	10th	20th	36 laps
50	Porsche 911 S		TA-II	Fritz Hochreuter (CDN)	Fritz Hochreuter (CDN)	17th	11th	26th	35 laps
75	Porsche 911 Carrera RSR		TA-II	Norm Ridgely (CDN)	Ridgely Racing (CDN)	DNF		15th	19 laps - Linkage