Another day of placings..8 out of 13 selections...getting to the point where i want to pull my hair out..

Hi Mav!
Did you ever check if your selections and the favs in the races you select would be good enough for place betting?
That brings me to ask another question, (if it is not a state secret) why do you select certain races and not others?
What is the criteria?
Cheers Lou.