Ask the Experts

General Category => Ask the Experts => Topic started by: TGJB on August 26, 2015, 09:32:48 AM

Title: On Line Travers Day Seminar
Post by: TGJB on August 26, 2015, 09:32:48 AM
Doing one.
Title: Re: On Line Travers Day Seminar
Post by: alydar61 on August 26, 2015, 12:00:11 PM
Great! Looking forward to it.
Title: Re: On Line Travers Day Seminar
Post by: Paolo on August 26, 2015, 12:59:59 PM
1-5 that JB takes a stand against AP!
Title: Re: On Line Travers Day Seminar
Post by: johnnym on August 26, 2015, 01:59:00 PM
No bet
Title: Re: On Line Travers Day Seminar
Post by: P-Dub on August 26, 2015, 02:34:54 PM
Paolo Wrote:
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> 1-5 that JB takes a stand against AP!


I\'ll lay 1-5 that Collmus continues to do Durkin impressions.

Can someone please tell him to stop it already??
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 26, 2015, 02:46:19 PM
Yeah, we were talking about that up there last weekend. Don\'t know if it\'s conscious, but it\'s there.
Title: Re: On Line Travers Day Seminar
Post by: miff on August 26, 2015, 02:52:03 PM
Another weak NYRA hire!
Title: Re: On Line Travers Day Seminar
Post by: FrankD. on August 26, 2015, 02:56:21 PM
Miff for racing Czar!!!
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 26, 2015, 02:57:07 PM
There are very few situations where a horse really should be 1/5, when you consider all the things that can happen. And very few odds on favorites in big races, where more of the money comes from the general public, that aren\'t good bet againsts.
Title: Re: On Line Travers Day Seminar
Post by: Mathcapper on August 26, 2015, 04:19:05 PM
I\'m starting to think it\'s conscious myself.

\"..Jess\'s Dream..is a reality!!\"
Title: Re: On Line Travers Day Seminar
Post by: Chas04 on August 26, 2015, 06:43:05 PM
You really think deep down with a gun towards your heard AP can lose????  

Any intelligent person knows anything can happen in life and we equate for that.........

But AP can\'t lose unless he gets hurt or eased. Its that simple.
Title: Re: On Line Travers Day Seminar
Post by: Strike on August 26, 2015, 07:29:38 PM
Chas04 Wrote:
-------------------------------------------------------
> You really think deep down with a gun towards your
> heard AP can lose????  
>
> Any intelligent person knows anything can happen
> in life and we equate for that.........
>
> But AP can\'t lose unless he gets hurt or eased.
> Its that simple.


Or, -- he breaks bad; some horse/jockey \"Bayern\'s\" him; he throws a shoe; the last incredible work out gassed him; he is fatigued from cross country trip; Espinoza does something stupid; Espinoza doesn\'t feel well; and many more... .

Impossible to bet \"for\" at the odds. Very hard to bet against with any confidence.
Title: Re: On Line Travers Day Seminar
Post by: miff on August 27, 2015, 05:43:01 AM
\"But AP can\'t lose unless he gets hurt or eased. Its that simple\"

Chas,

On paper,he looks 70-80% perhaps depending on ones take but they don\'t run races on paper.AP needs to \"show up\" on Sat to win, there are a few in there that can beat him if he runs subpar.

AP certainly appears ready to fire judging from his eager gallop this am over the SPA surface.

Mike
Title: Re: On Line Travers Day Seminar
Post by: jerry on August 27, 2015, 05:50:57 AM
They all have a bad day now and then.
Title: Re: On Line Travers Day Seminar
Post by: heatherk on August 27, 2015, 06:18:33 AM
TGJB or TGAB in my haste/excitement to download seminar I downloaded thoroquick and mini thoroquick, please credit my account. I don\'t need both. Thanks.
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 27, 2015, 09:39:52 AM
Wait, 70 and 100 aren\'t the same thing?
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 27, 2015, 10:28:00 AM
Still trying to understand this. So if I take 1/5 100 times, and win 70, that means I\'m going to think I\'m really smart 70 times, right? What\'s wrong with that?
Title: Re: On Line Travers Day Seminar
Post by: miff on August 27, 2015, 10:44:37 AM
Guess you know,you need to win 84 out of 100 to break even @ 1-5. Since you like stats, 1-5 shots underperform vs their mathematical probability and do not produce break even(unfiltered,of course,large sample size done 7-8 years back)
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 27, 2015, 11:04:49 AM
I don\'t especially like stats, except when the results are extreme, and I agree that everything has to be taken in context. (The place they really go nuts with taking stats out of context is the commercial breeding industry. Total BS). Stats are one data point, among many.

But I\'m not shocked about the 1/5 shots-- I would say anyone who\'s been betting horses for a while wouldn\'t be, and wouldn\'t need a study.

The \"gun to your head\" guy was great. Yes, if it\'s a binary choice, 1/5 shots are more likely to win than lose, and bullet or no bullet is pretty binary. Pari-mutuel betting offers many more choices, and corresponding odds.
Title: Re: On Line Travers Day Seminar
Post by: miff on August 27, 2015, 11:18:47 AM
The mistake people make is assuming that AP is 100% to show up and run his best and that no other horse will run faster than it ever did before and beat AP.Very speculative to start putting probabilities on those two possibilities which are contradictory to the present pp\'s of the field.

Stick to my take that the only conceivable reason to try to beat AP is a risk/reward prop vs a creative racing reason.
Title: Re: On Line Travers Day Seminar
Post by: TGJB on August 27, 2015, 11:31:56 AM
They\'re always risk/reward questions.
Title: Re: On Line Travers Day Seminar
Post by: Mathcapper on August 27, 2015, 12:08:30 PM
miff Wrote:
-------------------------------------------------------
> 1-5 shots underperform vs their mathematical
> probability and do not produce break even
> (unfiltered,of course,large sample size done 7-8 years back)

Not sure if you\'r referring to this, but Steve Klein did the definitive study on odds-based ROI about 10 years ago in his book, The Power of Early Speed, covering 8 years worth of races and over 1.6 million horses: Summary results from The Power of Early Speed (https://twitter.com/Mathcapper/status/636970262697803776)

He found that heavy chalks (1-9 to 1/2) actually outperform their mathematical probabilities, although as you noted, not by a large enough degree to break even. On average, they produce an ROI of around -13% as compared to an average track take/breakage of around -18.5%.

The pools have gotten more efficient since then, so not sure how pronounced the fave/longshot bias still is in the win pools today.

The other notable thing, and the focus of Klein\'s book, was the incredible ROI produced by early leaders, at any odds, as I\'m sure any past-posters can attest to.

fwiw

Rocky R
Title: Re: On Line Travers Day Seminar
Post by: miff on August 27, 2015, 12:19:53 PM
Thanks Rocky,

Believe what I saw came out of some British stat geeks. Recall that, as you noted, longshots performed worse than odds on horses vs probability.

Mike