Is 647.740 chains as long as The Kentucky Derby?
It's about six-and-a-half times as long as The Kentucky Derby
The length of The Kentucky Derby is about 100 chains.
(Churchill Downs, Louisville, Kentucky) (total race length)
The total race length of the Kentucky Derby run at Churchill Downs is 100 chains. First run in 1864, the Kentucky Derby is one of the oldest continuously-running sporting events in America, almost two years older than the Westminster Kennel Club Dog Show
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