ABCs

[jwkniska]

one way to learn numbers are from race programs too. all the speed figures, times, etc.
also, good way to learn money and make change is from payouts.

I learned alot of the numbers from looking at point spreads for football/basketball games growing up.

[my miss storm cat]

U - Uttoxeter

V - Vichy

[scanman]

I had to go outside of the USA for these:

J - Jagersro (Sweden)
Q - Queanbeyan (Australia)
U - Uttoxeter (United Kingdom)
V - Varese (Italy)

And yes, I've been to all 4.

You'll be hard pressed to find a track that starts with X. I've been able to catelog 1172 tracks in 68 countries and couldn't find one.