Professional and college baseball games are both scheduled for nine innings. Softball and high school baseball games, as well as some minor league baseball doubleheaders and, beginning with the 2020 season, all Major League Baseball doubleheaders, are scheduled for seven innings. In addition to being scheduled for nine and seven hours, professional baseball games also vary in how they are played. While most major league games are played over three days, with a night game on each of the first two days, many two-game series are won or lost in one day. These "one-run" games can be very intense as the winning team tries to score more runs than the losing team during their final at-bat. In contrast, softball and high school baseball games usually take place over four or five days and include several breaks for food or water. The number of innings per game is the same as for pro ball but since there are fewer total games played, each inning is longer. For example, a typical high school game will last about five hours instead of three days in the pros. That means each player has more time to get into a batting stance and hit against better pitchers/defenses. Minor league baseball teams often play two games on the same day. These are called "doubleheaders" and they are an important part of how this level of baseball is managed.