A runline is MLB baseball's version of a point spread. In NFL and NBA point spreads, the betting odds are usually at a standard of -110, and the spread itself is typically moved to balance action. In baseball, the spread itself is fixed at -1.5 runs, and the attached odds are changed to balance action. Baseball run lines are typically listed as the favorite -1.5 runs or the underdog +1.5 runs. In other words, the favorite has to win the game by at least 2 runs rather than just winning the…