Another laying idea using R and S stats
 

Just an idea to test out which seems to have gone well recently.

Using Racing and Sports Speed maps.

1. Only select horses which are Backmakers or Off Midfield.
Reason : These horse have the disadvantage in that they need to overtake the horses in front of them to win. Any holdup , interference or track bias could hurt their chances.

2. Only select horses in the $5 to $20 range on betfair (lay odds).
Reason: These horses are being seen at less then a 20% chance of winning, but the odds are not huge and/or overlays hopefully.

3. The horse must have raced at least 5 times already.
Reason: Can't have a speed map based on too few runs. You need a speed map that at least has had a few races to analyse the horses likely position.

Doing this I came up with the following:
27th July - 25 selections - 1 winner at $11
28th July - 15 selections - 0 winners
29th July - 12 selections - 0 winners (so far)

Over three days that is 52 selections - 1 winner for $11.

Might be worth following in the future.

Good Luck

I can see this working especially well in 1200m & less races.
Also
Barriers 1-3 (squeeze box situation) would also potentially work well because they would not normally have the pace to get out from a potential squeeze which naturally happens with these barriers.