OZmium Sports Betting and Horse Racing Forums - Betfair

#21

20th February 2007, 04:13 AM

jfc

Member

Join Date: Jan 1970

Location: Sydney

Posts: 402

Quote:

Originally Posted by Chrome Prince

....
I did an exercise in the thousands of manually comparing the movements of TAB IAS and Betfair on favourites. I also tried two approaches in real time over a thousand bets (at the start of this thread).
What got me started was the Betfair Advantage Tool, and realising that the price comparison was to a degree flawed, I wanted to compare the best and worst prices and the actual fluctuations rather than just the final price available on Betfair.

As this data is not available in Betfair's historical data, I had to do it all manually (ugh).

But I did only record various prices, not every price (that would be near impossible).
....

http://data.betfair.com/

Assuming you meet their stringent 100 point turnover requirements, this free data includes Australia.

It has every matched price with volume and time range.

While hardly ideal it can be converted to market movements.

#22

20th February 2007, 04:32 AM

Chrome Prince Chrome Prince is offline

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Join Date: Jan 1970

Posts: 4,426

jfc,

I downloaded it and it only had US and UK races.
Can you confirm Australian races are there now?

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#23

20th February 2007, 04:36 AM

jfc

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Join Date: Jan 1970

Location: Sydney

Posts: 402

Quote:

Originally Posted by Chrome Prince

jfc,

I downloaded it and it only had US and UK races.
Can you confirm Australian races are there now?

Yes.

For example the latest file has Randwick February 7 races.

#24

20th February 2007, 07:23 AM

Chrome Prince Chrome Prince is offline

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Join Date: Jan 1970

Posts: 4,426

Thanks jfc,

I downloaded two files and am delighted to find that on almost every race a market lay percentage of 120% exists and is readily available.

Time to get some sleep, and start attacking from a different angle all over again.

Mark had said it was there, and it is

For the punters, a back market percentage of around 80% also exists.

WIN WIN (oops now I sound like Haychee)

Last edited by Chrome Prince : 20th February 2007 at 07:31 AM.

#25

13th March 2007, 02:41 AM

zeditave

Member

Join Date: Jan 1970

Posts: 38

there's plenty of data in those historical files... you could be delving through them for months to find an edge unless you have a plan to begin with!

found a few other places for Betfair trading articles:

betfair dot info slash knowledge
laytheodds dot com
racingtraders dot com

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