I don't know how to interpret gambling lines for baseball, what does that mean? Basically -116 means you have to bet $116 to win $100. So there's no spread, it's a flat win or lose deal? Mostly. You can bet spreads too, but they have lines like that attached. A straight spread would be .5 or 1 for nearly every game, and there wouldn't be enough nuance in the system. If you bet a spread, it is usually something exagerrated like -2.5 at +225 (have to win by three, but it pays 2.25 for every dollar your bet)