I was looking to start some place backing systems but I think place laying is probably going to be more fruitful.
No hard and fast stats at the moment but try to limit your liability to say 5/1 and this will work (so selections 20/1 etc to win)
A few will obviously come in but many many more won't.
Make sure you do the homework on these as well as quite frankly some selections do not have a chance of getting placed due to going/draw/class etc.
So be selective and patient but given that there was about 50 flat races yesterday opportunities will arise.
I know a few people doing this quite successfully. but liquidity is a bit of a problem.
This is a brillaint site but the one failing is a lack of system builders or a suitable method to get the raw ratings into excel etc, which means that we all have to start afresh with our databases.
I have asked for support from other formites but they appear to be a really tight lot on here, whereas you go to ukhorseracing and everyone shares any info or work that they have done.