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Posting something from further investigation using the Bris PP Past Performance Generator.
A race in which the winner ran a 72.2 second 6F race
A horse 4.5 lengths back from the same race ran a 73.05 second 6F race.
Both of these are as displayed using the Bris PP Past Performance Generator not my own calculations.
The winner scored an 82 Bris. The horse 4.5 lengths back scored a 75 Bris.
A 7 point Bris differential. The difference in time was 73.05-72.2 or 0.85. If one takes the .85 time difference divided by the 7 point Bris differential one gets .85/7 or approximately .12 seconds per Bris point at this 6F difference.
My investigation was not based on a formula, but the actual reported numbers in the Bris PP Generator. However, the result kind of matches the chart posted before here on the board which rises .01 per increase in each half furlong. (so a 4.5F race would be .09 and a 12 f race would be .24)
5f = .10
5.5f= .11
6f = .12
6.5f= .13f
7f = .14
7.5f= .15
8f = .16
8.3f=.1667
8.5f=.17
9fr =.18
9.5f=.19
10f =.20
Last edited by Secretariat; 06-15-2015 at 04:10 AM.
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