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| Date | Saturday 3 March 1973 |
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| Start time | 14:00 |
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| Event | South African GP |
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| Circuit | Kyalami |
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| Event Format | Race of 79 laps |
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| Race | 5 of 29 |
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| Championship race | 223 |
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| Laps | 79 |
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| Circuit Perimeter | 4104 m |
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| Race Distance | 4104 × 79 = 324.216 km |
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| Grid Format | 3-2-3-2 |
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| Pole Position | Left |
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| First Corner | Right |
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| Track Direction | Clockwise |
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| Weather | Dry |
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| Entries | 25 |
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| Qualifiers | 25 |
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| Finishers | 11 |
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| Championship Debutants |
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| Milestones | Car 23 - 75th Race Entry (Car Number)
Denny Hulme - 1st Pole Position (Driver)
Howden Ganley - 25th Race Entry (Driver)
Marlboro BRM - 50th Race Entry (Entrant)
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| Records Broken |
1. Most 11th Place Finishes – Lotus (17),
2. Most 23rd Place Qualifications –  Mike Beuttler (4)
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| Records Extended |
1. Most Drivers' Championship Points Scores – Ferrari (298),
2. Most Retirements – Lotus (265),
3. Most Constructors' Championship Points Scores – Ferrari (166),
4. Most Podium Finishes – Jackie Stewart (38),
5. Most 4th Place Finishes – Ferrari (52),
6. Most Races Led – Jackie Stewart (46),
7. Most Race Entries – Ferrari (632),
8. Most 10th Place Qualifications – BRM (28),
9. Most 13th Place Qualifications – Lotus (34),
10. Most 20th Place Qualifications –  Andrea de Adamich (7)
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