Runline betting on baseball is the worst thing you can do:
Picture this, if you get the Home Team run line -1.5 runs and they are winning by 1 at the end of the top of the ninth, what happens, the dont play the bottom of 9th, meaning you are starting with 3 less outs.
Baseball always take the money lines, odds are not for baseball, odds are for futures, baseball you bet on your pitcher and take the moneyline, disregarding how heavy it may be.
I have bet -400 favorites on baseball $400 to win $100 straight up, and eventhough as heavy, they only win by 1...baseball is way to tricky to take 0.5 more runs against you, no matter the odds, one single bat can screw you LOL