Correction for the length of The Indianapolis Motor Speedway
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How long is 3,900,000 milimeters?
It's about as long as The Indianapolis Motor Speedway
The length of The Indianapolis Motor Speedway is about 4,023,360 milimeters.
(Speedway, Indiana) (rectangular oval course)
The rectangular oval course of the Indianapolis Motor Speedway is 4,023,360 milimeters. While famous for its automotive racing, the first motorsport held at the track was a series of motorcycle races in August, 1909 — a little less than two years before the inaugural Indianapolis 500 race was run.