Thanks UB for that addition of No. of races where the qualifiers came from.
Its brilliant.

Here's something I came across that showing potential.
That others may like to peruse further.

RULES
Target races with 12-13 runners only.

Priced 14.00-100.00

Bet them all to win.

7 days a week.

RESULT
10% POT
SR 23%




There were 9610 selections for the System
There were 1657 races for the System
There were 389 Winners for the System for a strike rate of 4.05%
There were $10560.18 returned for WIN (after 5% commission) which means a Profit or loss of $950.18 or a percentage profit/loss of 9.89%

The Rules used were : WinPrice >= 14 and WinPrice <=100 and runners >= 12 and runners <=13

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Cheers.