rizzo
Brownlow Medallist
- Sep 11, 2003
- 14,342
- 1,037
- AFL Club
- Geelong
- Other Teams
- Everton, Melbourne Heart, Raptors
Looking forward to seeing your thoughts on race 8 at shep oaks 
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Thanks mate
As i said the dog shouldn't be those odds but you can kind of expect it with his current form. Nice little chaser who has had a heap of problems
Hopefully Cyan lorian does the right thing over in Adelaide tonight
In There running in the final at Shep tonight. Box 6 is a worry, needs to jump bloody well.
He is also an emergency for Sandown on Thursday![]()
Hey All,
Question for the greyhound guys so I figured here was as good a place as any - does anyone know where I can find the distances for the first section at the various tracks?
I'm playing around with a spreadsheet and I need them to get a more complete picture.
Cheers
The following is a basic computations for acceleration. (i had posted at another site)
There is nothing new here
Acceleration constants for a greyhound can be computed to be 3.9 minus .9 minus 1.89 = 1.11 which is the maximum speed constant.
How relevant can these numbers be one would ask?
Using Sandown Park 515 as our base track, we can apply a few known numbers to confirm our acceleration constants.
Track Record (29.38) minus 1.11= 28.27 ( this rids us of the standing start)
Distance (515) divided by 28.27 = (18.22) Max speed
Maximum Time (29.38) minus 3.9 = 25.48
Maximum Dist 18.22 multiplied 25.48 = 464.17
Acceleration Dist ( 515)minus 464.17 = 50.83
Now to apply the acceleration constants for Proof to find what the first sectional distance would be at Sandown Park we do the following
.9 multiplied 18.22 (maximum speed) = 16.40
1.89 Multiplied 18.22 = 34.43
3.90 minus the known split record is 4.99 = 1.09 multiplied by 18.22 = 19.86
Now we add the following 16.40 + 34.43 + 19.86 = 70.69 metres is the approx. length of the first timed sectional for the 515 distance.
If you looked at all short straight splits, they will all be linear and too a confidence level of .999
Where a split takes in a turn, you need to add a centripetal force formula.
It starts to get a little complicated, as you need to adjust the spped in relation to the radius of the turns, for this you need to use a centripetal formula and constant.
Sounds complicated but its not really.
I compile Track variants, plus I delete outliers in data.
The major difference in those two tracks for me is from a wagering aspect, check the average price of a winner at both, this has a big bearing in how you will construct wagers. ie dropping dogs out of your exotics etc.
2 7 $3.725
1 2 $2.702
1 7 $2.104
2 8 $1.333
2 4 $1.193
7 8 $1.036
4 7 $0.928
2 6 $0.773
1 8 $0.748
1 4 $0.670
1 3 $2.438
3 1 $1.894
1 4 $1.378
1 5 $1.203
1 6 $1.048
4 1 $0.965
5 1 $0.829
6 1 $0.713
1 8 $0.683
3 4 $0.565
8 3 4 10.89% $2.18
8 3 2 8.81% $1.76
3 8 4 7.12% $1.42
8 3 6 5.79% $1.16
3 8 2 5.77% $1.15
8 4 3 5.06% $1.01
8 2 3 3.97% $0.79
8 3 7 3.80% $0.76
3 8 6 3.79% $0.76
4 8 3 2.54% $0.51