BINGO ! I found a comprehensive listing of all Group and Listed Races.

It is actually last years but very helpful and it confirms the Ascot Handicap is a Listed Race and also shows up VRC Winter Championship today (Flemington Race 6 - which is indicated in todays form guides).
It also lists the Belmont Classic for the equivalent of todays date last year, but can't see that in the form guide.
If anyones interested its in PDF format at www.classicbloodstock.com.au

So I'll now have a look at CPs rules for Flem Race 6 - " so much to do and so little time "

Cheers