1973 - Vallelunga 6 Hours

25 March 1973 - Circuito di Vallelunga, Italy

Reinhold Joest & Mario Casoni 5th in a Porsche 908/03, 18 laps behind the winning Matra 670B driven by Gérard Larrousse & Henri Pescarolo

GT - 1st, 2nd

No.	Car	#	Class	Drivers	Entrant	Pos	Class	Grid	Notes
12	Porsche 908/03	908/03-008	S3.0	Reinhold Jöst (D)/Mario Casoni (I)	Reinhold Jöst (D)	5th	5th	9th	272 laps
9	Porsche 911 Carrera RSR	911 360 0588 R6	GT	George Follmer (USA)/Willi Kauhsen (D)	Martini Racing Team (D)	7th	1st	21st	251 laps
8	Porsche 911 Carrera RSR	911 360 0576 R5	GT	Gijs van Lennep (NL)/Herbert Müller (CH)	Martini Racing Team (D)	8th	2nd	15th	251 laps
31	Porsche 908/03	908/03-013	S3.0	Claude Haldi (CH)/Juan Fernandez (E)	Porsche Club Romand (CH)	9th	7th	16th	229 laps
32	Porsche 911 Carrera RSR	911 360 0659	GT	Bernard Cheneviére (CH)/Peter Zbinden (CH)	Porsche Club Romand (CH)	DNF		20th	130 laps - Clutch Pedal