Baseball odds are expressed as 3-digit money line. All money lines are based onR$100. The minus (-) on the electronic wagering display and wagering sheets next to the starting pitcher indicates the favorite. The plus (+) indicates the underdog.

When betting on an MLB run line, +1.5 means that the underdog team must either win the game outright or lose the game by one run or less in order for the bet to be successful. With a run line, also called against the spread,  the spread is almost always 1.5 runs.