It does – seem a lot easier than it is I mean.
There are a avriety of factors to look at. Laying a horse you believe will drift is one method of trying to eke a profit. That way you can lay off the bet by backing it at higher odds than you’ve laid it at, locking in a profit whatever happens.
Another method is, obviously, top identify horses whose chance has been overestimated by the market (i.e. their price is too short). Some people find this easier than idetifying horses who are too long. You can have good winning streaks with this but, depending on the prices you are operating at, wins can quickly be wiped out when you hit a bad run.
Personally I look for horses whose recent form is below their best and who appear to be trading at a price which refelects their best rather than most recent form. You have to be careful (i.e. look closely at recent runs to ensure it wasn’t trip/ground that caused the bad run – they might be back at their optimum today) but if you are happy that they have def been out of sorts a little then they are usually good targets.
It is tricky though and laying horses is no easy route to riches.