SRSport Rules
Baseball

The pitch clock is a timing rule with real penalties.

The MLB pitch timer changed baseball because delay can now change the count. To understand the rule, track who is responsible for being ready, whether runners are on base, and whether the pitcher used a disengagement.

Quick ruling: the pitcher must begin the delivery before the pitch timer expires. A pitcher violation is an automatic ball. A batter who is not in the box and alert by the required point is charged with an automatic strike.
Decision path

How umpires check the timer

  1. Start the timer for the situation: between batters, bases empty, or runners on base.
  2. Watch whether the batter is in the box and alert to the pitcher by the required mark.
  3. Watch whether the pitcher begins the motion to deliver before the timer expires.
  4. With runners on base, count disengagements such as step-offs and pickoff attempts.
  5. If the pitcher, batter, or runner-related limit is violated, apply the automatic ball, automatic strike, or base award.
Timer lengths

The clock changes by situation

In MLB, the pitch timer uses a 30-second timer between batters, a shorter timer with the bases empty, and a longer timer when runners are on base. The current MLB glossary describes 15 seconds with the bases empty and 18 seconds with runners on base.

Batter readiness

The hitter has a deadline too

The batter cannot wait until the final instant. MLB requires the batter to be in the box and alert to the pitcher by the 8-second mark. If the batter violates that requirement, the penalty is an automatic strike.

Pitcher violations

What creates an automatic ball

The pitcher must begin the motion to deliver before the timer expires. If the pitcher is late, the umpire adds an automatic ball to the count. That can create a walk, so a timer violation can directly put a batter on base.

Disengagements

Pickoffs and step-offs are limited

With runners on base, a pitcher can reset the timer by stepping off or attempting a pickoff, but those disengagements are limited. MLB generally allows two disengagements per plate appearance, with the limit reset if runners advance. A third pickoff attempt must succeed, or the runner is awarded the next base.

Common arguments

Misunderstandings to avoid

  • "The pitch clock just speeds things up" understates it. The penalty changes the count.
  • "Only pitchers can violate it" is wrong. Batters have readiness requirements.
  • "Every step-off is free" is wrong with runners on base. Disengagements are tracked.
  • "The clock is always the same" is wrong. The timer depends on base state and between-batter timing.