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See also: | Drivers, Teams, Entrants, Car Models, Car Manufacturers, Engine Manufacturers, Lubricant Manufacturers, Car Numbers, Sponsors, Sponsor Industries, Designers |
21st Place Finish Ratio
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until 1972 Brazilian GP
Ignore Indy 500 races
Ignore non-championship races
Note: records involving non-championship races may be inaccurate due to incomplete data.
Pos | Tyre Manufacturer | 21st Place Finish Ratio | 21st Place Finishes | Entries |
1 | Firestone | 0.22% | 2 | 904 |
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