Currently I'm testing a system in which selects a strike rate of around 75% per race with multiple horses. Certain races appear to have 6-7 selections but on the odd occasion you have 1-2 picks which I want to back. Mainly 2 selections if they are paying over $3 each.

I've isolated the selections per venue/day and found that certain venues don't have much history behind them to get enough confidence.

So I thought maybe instead of by venue I just look at all the day of the week or maybe do it by distance for the whole week.

Instead of looking a horses in form, I'm basically applying rules to elimate horses that can't win a little like a quad.

Any thoughts?

PS: Anyone heard of the staking place using 1,2,3,4,5,6,7

Your stake is the 1st and the last number e.g. $8.
If it loses you then use 2 and 6, to be $8 again.
However if it wins you add the winning profit onto the sequence.
I overheard a gentleman on the weekend down at the races using it but couldn't gather all the information