They are my own, and used only for track to track comparison.
I printed charts to make track to track, distance to distance comparisons easier.
I make Hambleton pace figures from Sartin's book with pen and paper.
As an example-----
Belmont I have routes 88, Fairgrounds 76.
It's quick and easy for me to convert from one to the other.
A race a Belmont of 1:11 and 1:35.
The Hambleton figs I make would look like 90/95/185.
If that Belmont horse went to Fairgrounds it would be 83/90/173.
Gulfstream's mile is 88, 1 1/16 is 82 and 9f is 85.
So that Belmont race would be equal to GP's mile, 6 ticks slower at 8.5f (87/92/179) and 3 ticks slower at 9f (88/94/182).
Quick and easy.
And since no rating is perfect I allow a 5 tick difference in routes and 3 ticks in sprints as being close.
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