I had the best season in any sport I have ever bet on in baseball this past year; and I'll more than happily share the process.
baseball is all about maths. It does not matter which team is playing which, who is hitting, who is not. It comes down to starting pitchers and their ERA.
My formula, was if the starting pitcher of TEAM A's ERA was 2.00 higher, or more than TEAM B's starting pitcher, then I would bet on TEAM B -1.5.
I swear it hit 85 - 90% of the games I bet on. It was ridiculous. Use that as your starting point and then factor in the other stuff, like streaks, weather and cappers, and you'll be laughing.
All the best mate. Merry Xmas / Happy Channukah.