In-play betting, also known as in-running or live betting, is betting while the event is actually taking place. For example, placing a bet on a horserace while the race is being run, or on a football match whilst it is being played. This form of betting takes place most often on sporting events.
What is the Runline? The runline is baseball's version of the point spread. When betting on the runline, the favorite is -1.5 runs on the spread, with the underdog at +1.5 runs. Betting on the favorite requires your team to win its game by two or more runs.