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See also: | Drivers, Teams, Entrants, Car Models, Car Manufacturers, Engine Manufacturers, Lubricant Manufacturers, Car Numbers, Sponsors, Sponsor Industries, Designers |
12th Place Finish Ratio
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until 1950 Swiss GP
Ignore Indy 500 races
Include non-championship races
Pos | Tyre Manufacturer | 12th Place Finish Ratio | 12th Place Finishes | Entries |
1 | Firestone | 3.03% | 1 | 33 |
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