[AusRace] Lengths per second score

[Steve]

Lindsay,
My opinion is the physical length of the horse is irrelevant when trying 
to do this
The margins these days are a function of time as you know, so that 
knowing the actual length of a horse is irrelevant in my opinion.
WA will use .16 seconds per lengths(6.25LPS) regardless of going, 
distance, speed,......................
SA(from long ago) will use who knows what, but I figured (from memory) 
it was anywhere between .15 and .17 seconds per length and no pattern 
could I find, to determine why they used which.
Did not know racing.com gave times, but just checked r8 yesterday and it 
appeared to be circa 5.7LPS(.175SPL).

Thus length margins are a pain in the arse, because they mean different 
things depending on where.
I spent weeks, years back studying this, looking for a pattern, so that 
I could transpose lengths back to times everywhere, but it was not to be
All because those geniuses at the data repository, had empty fields for 
the individual times(yes they had a field but it was unpopulated, or so 
I was told by the guy responsible!!)

Roughly....the shorter the distance then the more metres to a length.
 From WA data only where it is .16spl
1000M a length is about 2.64 metres when related to times
2400 its about 2.44m
the bigger the margin, then the smaller the length per metre value, 
except for the small margins <.5 where the errors are necessarily larger.

And all because they won't give accurate times, from which they derive 
the inaccurate margins.
They seem to think inaccurate margins is all the long suffering punters 
deserve!

SteveB

On 07/05/2017 12:19 PM, Race Stats wrote:
> Hi Tony,
> There are sites which list the times for all horses in a race, racing.com, rwwa etc.
> So you can actually work out if a horse is beaten a length, the time per length including sectionals.
> I know you accept that 2.75 metres is the average and industry standard, but the error margin is great when you break it down into age and size.
> We're looking at seconds, so it's critical that the horse's length is  accurate.
> In other words you could use your calculations to get raw figures and then compare them with the times at those sites to see the accuracy.
> Maybe you've already done that though ;)
> Not criticising your methods, just trying to open the discussion up a bit.
> Lindsay.
>
> -----Original Message-----
> From: Racing [mailto:racing-bounces at ausrace.com] On Behalf Of Tony Moffat
> Sent: Friday, 5 May 2017 5:01 PM
> To: racing at ausrace.com
> Subject: Re: [AusRace] Lengths per second score
>
>
>
> -----Original Message-----
> From: Tony Moffat [mailto:tonymoffat at bigpond.com]
> Sent: Friday, May 5, 2017 10:01 AM
> To: Racing <racing-bounces at ausrace.com>; Racing <racing-bounces at ausrace.com>
> Subject: Lengths per second score
>
> There has been some queries off the list regarding this.
> It was first mentioned in Sydney Cup re-run post.
>

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