| 1st | 4 | Paul Hawkins / John Love | Ferrari 330 P4 | Team Gunston | 1:26.3000 |
| 2nd | 3 | David Piper / Richard Attwood | Ferrari 412 P | D. Piper | 1:27.2000 |
| 3rd | 1 | David Hobbs / Jacky Ickx | Mirage M1 Ford | J. W. Automotive Engineering | 1:28.0000 |
| 4th | 6 | Mike De Udy / Frank Gardner | Lola T70 Mk.3 GT Chevrolet | M. de'Udy | 1:29.1000 |
| 5th | 14 | Peter Gethin / Peter Gough | Porsche 906 | A. G. Dean (Racing) Ltd. | 1:30.0000 |
| 6th | 2 | Doug Serrurier / Jackie Pretorius | Lola T70 Ford | L .D. Serrurier | 1:30.5000 |
| 7th | 12 | Tony Dean / Basil van Rooyen | Ferrari Dino 206 S | A. G. Dean (Racing) Ltd. | 1:31.5000 |
| 8th | 10 | Hans-Dieter Dechent / Hans Herrmann | Porsche 907 2.2 | Scuderia Lufthansa | 1:31.8000 |
| 9th | 7 | Malcolm Guthrie / Mike Hailwood | Ford GT40 | Frank Williams (Racing Cars) Ltd. | 1:31.8000 |
| 10th | 19 | Brian Redman / Tim Schenken | Chevron B8 BMW | Chevron Cars | 1:32.8000 |
| 11th | 20 | Derek Bennett / Digby Martland | Chevron B8 BMW | Chevron Cars | 1:33.4000 |
| 12th | 11 | Charles Lucas / Patrick McNally | Porsche 910 | C. Lucas | 1:33.5000 |
| 13th | 9 | Karl von Wendt / Serge Trosch | Alfa Romeo T33/2 2.5 | Racing Team VDS | 1:33.9000 |
| 14th | 5 | Jackie Epstein / Dave Charlton | Lola T70 Mk.3 GT Chevrolet | J. Epstein | 1:34.3000 |
| 15th | 16 | Garth McGillewie / Brian McKenzie | Elfin T300 Climax | Garths Motors | 1:34.4000 |
| 16th | 8 | Teddy Pilette / Rob Slotemaker | Alfa Romeo T33/2 2.5 | Racing Team VDS | 1:34.8000 |
| 17th | 15 | Clive van Buuren / Bruce van der Merwe | Porsche 906 | Lindsay Saker Motors | 1:38.1000 |
| 18th | 22 | Vic Walker / Peter Clarke | Lotus 47 | V. Walker | 1:42.6000 |
| 19th | 18 | John Truter / Keith Berrington-Smith | GSM Dart | Horner Bros. | 1:43.5000 |
| 20th | 23 | Joss Viljoen / Luki Botha | Elfin - Ford | J. Viljoen | 1:43.5000 |
| 21st | 21 | Ritchie Jute / Rodney Kinsey | Ecosse | J. Holme | 1:45.2000 |
| 22nd | 26 | Jack Holme / John Rowe | Lotus Elan | J. Holme | 1:45.6000 |
| 23rd | 31 | Scamp Porter / Chris Swanepoel | Renault 8 Gordini | Team Renault | 1:50.1000 |
| 24th | 25 | Nolly Limberis / Guy Tunmer / John McNicol | Mini Marcos | Power Filling Station | 1:50.5000 |
| 25th | 27 | Danny Alderton / Paddy Driver | Alfa Romeo 1300 GTA Junior | D. Alderton | 1:52.1000 |
| 26th | 32 | Phil Porter / Geoff Mortimer | Renault 8 Gordini | Team Renault | 1:52.2000 |
| 27th | 17 | Frank Rundel / Stan Taylor | Peco Lolette Spyder | Scuderia Los Amigos | 1:52.6000 |
| 28th | 35 | Arnold Chatz / Spencer Schultze | Volvo 122 S | M. A. Lawson | 1:52.9000 |
| 29th | 30 | Jan Hettema / Gene Bosman | Toyota GT5 Coupe | Toyota Sales Co. | 1:53.4000 |
| 30th | 36 | Dirk Marais / Frank Wingels | Volvo 122 S | Team Fourwill | 1:54.0000 |
| 31st | 33 | John Cooper / Fanie Viljoen | Mini Cooper S | J. D. van Tilburg | 1:54.5000 |
| 32nd | 29 | John Fritelli / Fred Cowell | Alfa Romeo GT Sprint | Fred Cowell Racing | 1:55.1000 |
| 33rd | 37 | Chris van der Heever / Steve Mellet | Alfa Romeo Giulia | Rays Racing Team | 1:59.0000 |