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-   -   Systems Fear (http://forums.ozmium.com.au/showthread.php?t=23491)

Mark 7th March 2012 02:28 PM

Quote:
Originally Posted by Mark
I will add that midweek I don't even look at our races until R5, don't bet omn maidens, and don't bet unless at least 30% of favs have won in the races run before the first R5 is run.


4 races run at wyong & sandown, 2 at Bris......I make it 9 favs from 10.
Get stuck in !!!!!

And yes I would believe.

Mark 7th March 2012 02:43 PM

Wyong R5....a bolter......who would have thought.
Love it when a plan comes together.

Mark 7th March 2012 02:46 PM

To circumvent any misunderstanding, I won't be on Bris until R5.

jose 7th March 2012 03:36 PM

Mumble mumble....something about horses and water..........mumble mumble.

Chrome Prince 7th March 2012 05:11 PM

I must admit, I never go on what happened in previous races, only previous days, and then only if it was a massive deviation from the average expectation.
However, the trouble comes when it goes on for days at a time, not so common here, but quite frequent in the UK.

Vortech 13th March 2012 11:21 AM

Another note or debate on the side of this topic is in relation to confidence levels.

If you have a system with 50 selections and you manage to get 30 winners (60% SR) with an average return of $3.00 you have a profit of $40.00

Now using any interval calculator http://www.surveysystem.com/sscalc.htm you have an interval of 17.87. Meaning the Strike rate can range from 42.13% to 77.87% with a 99% confidence.

Based on this, at worst you have 42.13% strike rate @ $3.00 average winner is still a 26.39% profit.

Is this logical in racing terms?

Chrome Prince 13th March 2012 12:46 PM

Quote:
Originally Posted by Chrome Prince
However, the trouble comes when it goes on for days at a time, not so common here, but quite frequent in the UK.


I should have added the USA!!!
Been making very good money on both UK and AUS the last week, but USA has hit hard :(

Mark 13th March 2012 01:02 PM

Agreed, the US was very hard going this morning.
I worked 10 races for 5 favs, 3 2nd favs, a 3rd fav and 1 result.

norisk 13th March 2012 01:42 PM

Quote:
Originally Posted by Vortech
If you have a system with 50 selections and you manage to get 30 winners (60% SR) with an average return of $3.00 you have a profit of $40.00




Reckon you need a much bigger sample Vortech, to go forward with any confidence.

Chrome Prince 13th March 2012 02:04 PM

Quote:
Originally Posted by Mark
Agreed, the US was very hard going this morning.
I worked 10 races for 5 favs, 3 2nd favs, a 3rd fav and 1 result.


Today was not extraordinary for the USA, this has been going on steady for the last week. I wonder if it's the average small field size.
At this stage I'm praying for rain, as that's when we get the nice results in the mud there ;)

To give you some yardstick:
AUS profit 25.32 units after commission
USA loss of 14 units after commission

Head above water, but USA is definitely on a sustained run of short winners.


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