Is 339,000 yards per hour as fast as Secretariat?
It's about five times as fast as Secretariat
The speed of Secretariat is about 66,100 yards per hour.
(at Belmont Stakes, 1973)
Setting a record finish, Secretariat ran the Belmont Stakes — a 12 furlong race length — in 2:24, for an average speed of 66,100 yards per hour in 1973. His margin of victory in the race, also a record-setter, was 31 lengths.
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