View Full Version : How long's a length?
AngryPixie
17th February 2007, 10:08 AM
This should turn up a few variations. The average of the answers will probably be close to the mark.
When developing systems I've always used 2.4m (roughly 8 feet). What about you?
Anybody know the official distance?
crash
17th February 2007, 10:31 AM
Men do tend to exaggerate.
jfc
17th February 2007, 10:40 AM
This should turn up a few variations. The average of the answers will probably be close to the mark.
When developing systems I've always used 2.4m (roughly 8 feet). What about you?
Anybody know the official distance?
I went through this painful exercise before.
Once you think about it and look at enough official photos - which now are actually a composite of ~2,000 per second slits of the finishing post, it appears that a length is actually a fraction of a second.
That's the only thing that makes sense. Your beaten margin (hence position) is not determined by how far away you were from the winner when it nosed over the line, but by how many seconds after the winner your nose arrives.
The standard 6 Lengths = 1 second appears the closest.
AngryPixie
18th February 2007, 10:38 AM
JFC
That's an interesting twist. Let me ponder on it.
Pixie
Chrome Prince
18th February 2007, 01:18 PM
Not to confuse the issue further, but using that as a benchmark is fine and fairly accurate when measuring the distance between horses in the same race.
When you start to hypothesize about one race being 6 lengths better than the other, is when it all comes unravelled.
Every week the commentators ramble on about this winner being a second or half a second quicker than the previous. The only problem with that theory is that they ran at quite a different pace.
Invariably to upset the applecart further, you can back the odds on favourite next time because it had the quickest time of the day, and be left wondering why it struggled to run a place, while the horse that ran a slower time comes out and blitzes the field at 3/1.
You'd be a very rich man if you layed the horse with the fastest race time next time out.
crash
18th February 2007, 02:15 PM
Personally, I believe coming to terms with 'Pace' and understanding it on a whole of race basis, concerning an individual runner's pace requirements, is one of the last frontiers ventured into by most punters. It's also the most profitable area for deciding when a horse is likely to win and when it won't.
If a punter doesn't don't know what pace a race is going to be run at and even worse, what type of pace suits their race selection, that punter is relying on little more than favorable luck [regardless of other form study] in trying to make a quid from a race's outcome.
Chrome Prince
18th February 2007, 05:00 PM
Agreed Crash,
To be honest, that's something I've never been able to master.
Assessing speed maps or likely pace isn't too difficult, if you have the time, but assessing pace in past races has always proved difficult for me.
crash
18th February 2007, 05:42 PM
Difficult for me too quite often !
AngryPixie
18th February 2007, 10:56 PM
With 2000th/second accuracy you wonder why margins are still published in terms of distance.
So should punters bother considering the beaten margin in their analysis of a candidate selections form? Or does it depend on what the margin was and the state and geometry of the track?
Maybe I'll pick up one of those US books on speed and pace...
Chrome Prince
18th February 2007, 11:27 PM
AngryPixie,
Those books are a good read in terms of interpretation and application of the figures, however, be aware that it is almost wholly geared toward US dirt track racing which does not translate well to Aussie Turf.
The racing patterns are quite different as are the times a horse can run on turf and dirt.
As an example there are a few pacing races run on grass here each year, the race times are nowhere near the times on crushed shell grit tracks.
AngryPixie
19th February 2007, 01:38 AM
Those books are a good read in terms of interpretation and application of the figures, however, be aware that it is almost wholly geared toward US dirt track racing which does not translate well to Aussie Turf.
Hi Chrome
Yep thanks for the heads up. I know we're talking apples and oranges here http://www.propun.com.au/racing_forums/images/smilies/smile.gif It's the interpretation and application that interests me, mostly from an academic perspective only though.
I've almost completely convinced myself that the market fluctuations are the best indicator of a horses chances, but it's important to step outside the box every now and then. Would you believe I'm working on a betting system based in part on the method used to find a missing US nuclear submarine in the 1960's?
I know. I laughed at myself too. http://www.propun.com.au/racing_forums/images/smilies/eek.gif
Pixie.
PS: The idea may not hold water though.
Merriguy
19th February 2007, 08:15 AM
Oh! :rolleyes:
AngryPixie
19th February 2007, 09:44 AM
Oh! http://www.propun.com.au/racing_forums/images/smilies/rolleyes.gifYes diversity is the spice of life http://www.propun.com.au/racing_forums/images/smilies/wink.gif
There's some argument over the technique used to discover the wreck, but anyway I reckon finding a sub in the Atlantic and finding a winner are pretty similar http://www.propun.com.au/racing_forums/images/smilies/smile.gif
For those interested
http://en.wikipedia.org/wiki/USS_Scorpion_(SSN-589)
Pixie
Chrome Prince
19th February 2007, 09:55 PM
I've almost completely convinced myself that the market fluctuations are the best indicator of a horses chances, but it's important to step outside the box every now and then.
Very TRUE - good luck with it.
I'll try switching my sonar on, in the mounting yard :D
westwinners
23rd February 2007, 08:30 AM
Hey folks,
Chapter five in Beyer On Speed contains some wonderful musings on the 'Sartin methodology' which is all about converting times and lengths beaten to a velocity measurement (eg 56 feet per second). It is interesting reading, though I must admit it is a little over my head.
My measurement of a length is also time based: 1 length = 0.2 sec. A little simplistic you might think, but it does favour those runners who finished close to the winner in past performances. After all, these are the runners we are most interested in supporting next time.
Regards
Chops
AngryPixie
4th March 2007, 09:41 AM
1 Length = the time it takes to measure a piece of string
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