17th December 2011, 11:02 AM
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Member
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Join Date: Jan 1970
Posts: 4,425
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One thing you have to be very careful of with impact values in days since last start, is the age of the horse, the last distance of the race, and training has changed since the old days.
We don't know whether the horse had a barrier trial, had a hit out on a private track (Freedman Hayes et al).
But as a guide it's useful.
I believe Biggs did a very intesive study of a number of factors.
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