Dingo,

I have a scanner, it scans the markets and it can be set to look for parameters, then print those races if those parameters are found.
More than one set of parameters can be forward tested at the same time.

Basicaly it does what one would calculate using a calculator.
There is a every 5 minutes sometimes.

So what is here is not a database of past events, it is going to happen.
Selecting in this method is one of many the scanner can do.

But you asked what will happen if you omit the fav and bet on the next 3,4 or whatever, and this scanner can be set to do just that.
Like I mentioned earlier, hedging/dutch betting is easy.
All is on test, but if you want to add real $$, be my guest.
Are you confident to invest 7500 ?
I use the figure of 7500 cos when it losses, it needs about that amount to chase losses.
I no longer use this favourite method myself, but if we must test it for what it's worth, save you the trouble at least if ya new here.