The 1972 Buenos Aires 1000 Kilometers was the opening round of the 1972 World Championship for Makes season. It took place at the Autódromo Oscar Alfredo Gálvez, Argentina, on January 10, 1972. This would be the last time that the World Championship ran in a South American country.

Grand tourer class cars did not participate in this event.

Class winners in bold. Cars failing to complete 70% of the winner's distance marked as Not Classified (NC).

Pos	Class	No	Team	Drivers	Chassis	Laps
					Engine
1	S3.0	30	SpA Ferrari SEFAC	Ronnie Peterson Tim Schenken	Ferrari 312PB	168
					Ferrari 3.0 Flat-12
2	S3.0	32	SpA Ferrari SEFAC	Clay Regazzoni Brian Redman	Ferrari 312PB	168
					Ferrari 3.0L Flat-12
3	S3.0	10	Giovanni Alberti	Carlo Facetti Giovanni Alberti Andrea de Adamich	Alfa Romeo T33/3	162
					Alfa Romeo 3.0L V8
4	S3.0	2	Autodelta SpA	Vic Elford Helmut Marko	Alfa Romeo 33TT3	160
					Alfa Romeo 3.0L V8
5	S2.0	36	Chevron Racing Team	John Hine José Juncadella	Chevron B19	158
					Ford Cosworth FVC 2.0L I4
6	S3.0	40	Escuderia Montjuich	Juan Fernández Jorge de Bagration	Porsche 908/03	157
					Porsche 3.0L Flat-8
7	S3.0	14	Ecurie Bonnier	Gérard Larrousse Chris Craft Reine Wisell	Lola T280	156
					Ford Cosworth DFV 3.0L V8
8	S2.0	34	Chevron Racing Team	Niki Bosch John Bridges	Chevron B19	156
					Ford Cosworth FVC 2.0L I4
9	S3.0	8	Autodelta SpA	Nino Vaccarella Carlos Pairetti	Alfa Romeo 33TT3	153
					Alfa Romeo 3.0L V8
10	S3.0	28	SpA Ferrari SEFAC	Jacky Ickx Mario Andretti	Ferrari 312PB	152
					Ferrari 3.0L Flat-12
11	S2.0	26	Abarth-Osella	Jorge Ternengo Claudio Francisci	Abarth 2000SP/71	145
					Abarth 2.0L I4
12	S2.0	38	Eris Tondelli	Eris Tondelli Carlos Pascualini	Chevron B19	137
					Ford Cosworth FVC 2.0L I4
13	S2.0	16	Ecurie Bonnier	Gianpiero Moretti Carlos Ruesch	Lola T212	127
					Ford Cosworth FVC 2.0L I4
14	S2.0	18	Ecurie Bonnier	Hector Luis Gradassi Emilio Bertolini	Lola T212	118
					Ford Cosworth FVC 2.0L I4
15 NC	S2.0	42	Écurie Esmerelda	Jean-Louis Lafosse Georges Dumoing	Lola T212	103
					Ford Cosworth FVC 2.0L I4
16 DNF	S3.0	12	Ecurie Bonnier	Gérard Larrousse Reine Wisell	Lola T280	106
					Ford Cosworth DFV 3.0L V8
17 DNF	S3.0	6	Autodelta SpA	Toine Hezemans Rolf Stommelen	Alfa Romeo 33TT3	71
					Alfa Romeo 3.0L V8
18 DNF	S3.0	4	Autodelta SpA	Andrea de Adamich Nanni Galli	Alfa Romeo 33TT3	60
					Alfa Romeo 3.0L V8
19 DNF	S2.0	24	Abarth-Osella	Dieter Quester Alex Soler-Roig	Abarth 2000SP/71	60
					Abarth 2.0L I4
20 DNF	S2.0	22	Abarth-Osella	Arturo Merzario Spartaco Dini	Abarth 2000SP/71	47
					Abarth 2.0L I4
21 DNF	S2.0	20	Ecurie Bonnier	Hughes de Fierlandt Jorge Cupeiro	Lola T212	13
					Ford Cosworth FVC 2.0L I4
22 DNF	S2.0	46	Ecurie Bino	Wilson Fittipaldi José Renato Catapani	Lola T212	8
					Ford Cosworth FVC 2.0L I4
23 DNF	S2.0	44	Grand Prix Motor Racing Org.	José Carlos Pace Angel Monguzzi	AMS 1300	4
					Ford Cosworth FVC 2.0L I4
DNS	S3.0	48	Oreste Berta	Nestor García-Veiga Rubén Luis di Palma	Berta LR	-
					Ford Cosworth DFV 3.0L V8

• Pole Position - #30 SpA Ferrari SEFAC - 1:58.59
• Fastest Lap - #12 Ecurie Bonnier - 1:58.39
• Average Speed - 173.886 km/h