MLB lines refer to the betting odds set by sportsbooks for Major League Baseball games. These lines indicate the expected outcome of a matchup, including moneyline odds, run lines, and over/under totals. Bettors use these lines to gauge the perceived strength of teams and make informed wagers. Factors influencing MLB lines include team performance, player injuries, weather conditions, and historical matchups. Understanding these lines is crucial for fans and bettors alike, as they provide insight into the dynamics of each game and the potential for profit.