What action does B1 take if he steps out of the batter's box without requesting time?

When a batter, in this case B1, steps out of the batter's box without requesting time, it can lead to various consequences based on the situation at hand. The rule is in place to maintain the pace of the game and ensure that batters do not unnecessarily delay play. If stepping out of the batter's box causes a delay, the umpire has the authority to call a strike against the batter. This action emphasizes the importance of the batter remaining engaged and ready to face the pitcher.

Maintaining the flow of the game is critical, and thus, if the action is perceived as a delay, it falls under the umpire's discretion to uphold the rules by calling a strike. This rule helps in discouraging batters from using unnecessary time out of the box, thereby optimizing the experience for players and spectators alike.