Calculator of Harness Racing-(Cop-U-Trot)

[Sparky13]

Anyone using this old hand held calculator for Harness Racing? How do you use Comparative Speed Ratings from track to track? Do you add or subtract the difference between tracks from any form of a rating number?

[Ray2000]

Pandy's chart in DRF is still about as good as it gets.
http://www.drf.com/news/pandolfo-harness-par-times

If you're rating a shipper today from a different track in last, you'd adjust its last race time faster if shipping in from a slower track and vice versa.

Yonkers in last to Pokie today, = 1:57-2 -> 1:55-2 or a 2 second difference.