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| Date | Sunday 23 June 1985 |
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| Start time | 14:00 |
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| Event |  Detroit GP |
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| Circuit | Detroit |
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| Event Format | Race of 63 laps |
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| Championship | World Championship |
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| Race number | #6 of 16 in 1985
#410 (of all time) |
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| Laps | 63 |
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| Circuit Perimeter | 4023 m |
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| Race Distance | 4023 × 63 = 253.449 km |
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| Grid Format | 2-2-2-2 (staggered) |
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| Pole Position | Left |
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| First Corner | Left |
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| Track Direction | Anti-clockwise |
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| Weather | Sunny, Hot, Dry |
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| Entries | 25 |
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| Qualifiers | 25 |
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| Finishers | 12 |
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| Debutants | None |
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| Milestones | Canon Williams Honda Team – 1st Win (Entrant)
Castrol – 200th Race Entry (Lubricant Manufacturer)
TAG – 50th Race Entry (Engine Manufacturer)
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| Records Broken |
1. Most 5th Place Finishes –  Elio de Angelis (13),
2. Most 22nd Place Qualifications in a Season – Piercarlo Ghinzani (4)
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| Records Extended |
1. Most Podium Finishes – Ferrari (310),
2. Most Constructors' Championship Points Scores – Ferrari (343),
3. Most Retirements –  Lotus (449),
4. Most Drivers' Championship Points Scores – Ferrari (475),
5. Most 2nd Place Finishes – Ferrari (123),
6. Most 3rd Place Finishes – Ferrari (96),
7. Most Race Entries – Lotus (1024),
8. Most 3rd Place Qualifications – Ferrari (97),
9. Most 9th Place Qualifications – Ferrari (47)
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