BRIS speed ratings

[Tom]

Thanks light.
I hadn't noticed the pars changing.

[Big Bill]

Tom,

Click here for a link to a 2005 thread (http://www.paceadvantage.com/forum/s...439#post214439) that might contain the info you are looking for.

Big Bill

[Secretariat]

Maybe this is simplistic but the time difference between the two is .9. The point differential is 6 points. Therefore in this scenario the value of a Bris point is .9/6 or .15 seconds per Bris point.

Your question interests me though as Bris has spoken in generalities about this for years. For example does BOTH lengths and a fifth of a second equate to the formula (10/distance) for Bris points? Or is it only for lengths?

I have wanted to take a few Bris result charts run on the same day with their final lengths provided by Bris, and their reported horse Bris times, and see if the actual relationship of the (10/distance) formula is equal for a fifth of a second and a length universally. Has anyone done that?

[Secretariat]

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

[Tom]

Hey Sec!
Where you been, guy?

Thanks for the input.

[Tom]

Seems to work on every race I have tried it out on so far. You get a 1 point error every so often, probably due to rounding the figs. But it does work.
As far as pace, 1 pace point = 1/10 of a second.

[Secretariat]

Was just working on the 2nd race from DEL on 07/11/15 which was a 6F race.

There were four horses who had run in the same race against each other on 06/27 again at 6F and at DEL.

Do Ya Wanna had a 72 Bris and was one length back in that race.
Ebony Two Star turned in a 69 Bris and was two lengths back.
Vanna Go's Point had a 66 Bris and was four lengths back
Frosty Whirl turned in a 56 Bris and was ten lengths back.

Now the speeds and lengths:

72-1
69-2
66-4
56-10

Using the top speed horse and the speed length differentials we get this.
0-0
3-1 or (3 Bris points behind and one length back of the 72 speed horse)
6-3 or (6 Bris points behind and 3 lengths back of the 72 speed horse)
16-9 or (16 Bris points behind and 9 lengths back of 72 speed horse)

So for the horse who had a 69 he lost "3" points per length
The horse who had the 66 lost (6/3) or "2" points per length
Lastly, the horse who had a 56 lost (16/9 )or "1.78" points per length.

This kind of wide discrepancy in their beaten lengths is frankly inexcusable. The place doesn't even post a beaten length chart, and I've been told by them that the formula of 10/(distance in furlongs) for beaten lengths is not correct. Apparently Churchill bought Bris and the communication between the old and the new is lacking. Very reticent at this point to rely too much on these figures.