Is 730 yards per second as fast as Secretariat?
It's about forty times as fast as Secretariat
The speed of Secretariat is about 18.40 yards per second.
(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 18.30 yards per second in 1973. His margin of victory in the race, also a record-setter, was 31 lengths.
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