Here are a couple of basis things I utilize:

F/A Ratio .0+
One calculates the F/A (For & Against) Ratio for each team by dividing the Runs For / Runs Against.
For example, a past game between the Texas Rangers and Detroit Tigers looked like follows:

TEX - RF = 5.42
TEX - RA = 6.48

DET - RF = 4.74
DET - RA = 5.19

TEX 5.42/6.48 = 0.82
DET 4.74/5.19 = 0.91

In the second step, one subtracts the results for both teams:

TEX: 0.82-0.91 = -0.09; DET: 0.91-0.82 = +0.09.

A team that has a value of >0 and which Money Line is not lower than -150, you have a play. (for this calculation's purpose: -160 is less than -150)

F/A Median 1.5+
This serves as an additional criteria. The calculation goes at follows: (RunsAgainst – 4.70) + (Runs For – 4.80).
If the value is 1.50 or higher this is a play.
Again, the Money Line should be -150 or better.
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Total of 10 or more, Bet the over where the ML for the home team is between +125 and -125
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HH-games (HH = higher/higher) are games where both teams' defense has allowed more runs than the opposition's offense has scored.
Last year, the "HH"-dogs scored +58.87 units.
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