Hi Oz
I'm not sure that you understood what I meant regarding "How long is a Race" think about it that when the winner crosses the finishline the race is over.

You really don't want to know what each runner took to run the allotted distance, you need to find out how far they ran in the winning time and this this is the 2nd step.

The first step is you need to change the measure of each race, a good starting point is to multiply the race distance by the Track record, I'm not going to disclose everything but that should get you thinking.

Then you will progress to "how far is a length" the answer to that is located in the above two steps.

Cheers