Originally Posted by Dale

Here's an example of the benefits of filtering to field size from a system im currently testing-

All races =
714 bets-201 wins -$700.40 return - 0.019% loss on turnover

Races with 7 starters or less =
104 bets - 33 wins -$72.40 return - 0.303% loss on turnover

Races with 8 starters or more =
610 bets - 168 wins - $628 return -0.029% profit on turnover


* so weve taken a losing system and turned it into a profitable one by simply ignoring races with less than 8 starters.

This is from well fancied horses,the situation is exagerated even more with longer priced horses.

Cheers