Definition: The difference in money lines between the favorite's lay price and underdog's take back. In direct correlation to the type of line you are getting (i.e. with a 20-cent line, the favorite would be -200 and the underdog +180). In baseball, the better online sportsbooks offer a dime line, while the less player friendly books stick with the higher juiced 20-cent line. Generally, the smaller the differential, the better line value you are getting.

Example: When researching boxing odds at different sportsbooks, it's important to factor in the dog/fav money line differential to make sure you get the best price on your wager.