Well, it smells to me like a betselector system, which by it's very nature is retrofitting.
Incidentally if you leave out the irrevelant factors like:
-
Age 4
Race Field Size: 5-16
Track Condition: G,D
Career Starts: 7-26
Barrier Position: 1-10
TAB Number:1-13
Weight to Carry:52.0-58.0
Max Distance Rise_Drop:+200-400
Weight Change Min_Max:-4.0- + 5.5
Max Last Start Margin: 6.3 Lngs
days since last start:5-56
-
you probably would get the same or near enough results.
Not having the said software I cannot verify but my hunch is that I am not far off.

As Crash used to say, and I am in total agreement with him on this, "why not learn to use "RATINGS" and treat every race on it's merit"?

But if it returns a profit!? some say?

My reply to that is that if you can rate your races-horses properly you don't have to look around for a measly, extra, 1 or 2 % and miss the race altogether for lack of time.
The fact in racing is, that there is rake (charge) by the bookie, TAB or whatever, and that is mostly compensated for by the price available.
I tried Betfair, sure, you can get a better price, IN THEORY only, because there is no guarantee of acceptance.
Still, if it works for you, by all means use it and Good luck.