System,

1. WIN STRIKE RATE
Consider only runners with a win strike rate of 20 percent or more.

2. DAYS SINCE
A horse must have had its last run within the previous 10 days.

3. FORM
It must have finished 1st, 2nd or 3rd in at least one of its last 2 races.

4. BEATEN MARGIN
If 2nd or 3rd last start, it must have finished 5 lengths or less behind the winner.

5. WIN STRIKE RATE
If more than one qualifier, select the horse with the highest win strike rate.