To be honest I have never FULLY tracked a season. I usually get lazy but I am going to try to do it this year. That said, only betting 1-2 games/day I be happy to make 50 units. My units are quite large though so instead of saying every game is 10 units value I just make them all one unit.
I don't always bet 1st 5 innings, just the way they happened to fall so far.