Chrome, after reading your comments about yesterday's faves I decided to check the results from other days.

I looked at nine random days and the results are:

39 qualifying races.
Outlay of $172 ($1 S.P. bets)
Return of $175.50.

Merriguy, I haven't checked results from any other tipping agencies, neurals etc, but could do so one day.

As the above results are break-even I might reconsider the method.