Somebody more modern than me purported not to know what a hundred yards was. I said that it was a hundred metres minus three hundred inches.
Nah! Three hundred inches? What's that?
Look, I said - most men in the UK stand a few inches shy of six feet or seventy-two inches. Take four men like that and lay them end to end. Add a midget.
Subtract that measure from your known measure of a hundred metres and you've got a hundred yards.
I hope it helped.