How long is a marathon?

And they are never any longer?

26.1? 385 yd ÷ 1760 yd/mi = .22 Maybe you accidentally used 285 yd? Or 5280 ft?

And where did it come from? According to history, a man ran the distance in Greece, to advise of a battle victory from (or to) Marathon in Greece. Upon delivering the news, he collapsed and died of exhaustion.

Some of the super marathons are crazy long, going for days. Not a complaint, if people get joy from doing these, great.