Converting calculators for English to Metric systems are available free on Internet. Here is an alphabetic listing of the most important conversions.

The poles along the track mark half furlongs such as the 3/16th pole. Imagine the troubles a latin jockey has!

In the US, works go from 1/4 mile even to over a mile by f with breezing 3/8ths in about 36 s the commonest. When 12 s is used these distances by 1/8ths are: 24. 36, 48 s, 1 min, 1:12, 1:24, 1:36 min. The entire mathematics of many many people is just these numbers ! The speed--most obviously--is decreasing linearly as the distance lengthens. What is happening to the HR during these journeys?