Hi KV!
I may be way off here, but I think I did the same as Woof, Looked at all the races where the sectionals were available, and created a table where the relationship of finishing positions to sectional positions were written as a percentage of occurance, like how many pos. 5 at 800m and at pos. 3 at 400 m finished first, sec. etc. etc.

Then I did the same including the class of race as well.
I examined the results, but sadly they led nowhere.
Then I gave it away.
As they say, if you don't succed for a couple times give it a rest! No use flogging a dead horse.
Cheers