Balk

A balk is an illegal motion by the pitcher that deceives the runner(s). When a balk is called, all runners advance one base. The rules are designed to prevent pitchers from tricking runners with deceptive movements.

Common Balk Situations

Pitchers commit balks when they:

• Start a pitch motion but don't deliver the pitch
• Make a pickoff throw without stepping toward the base
• Drop the ball while on the rubber
• Fake a throw to first base (from the set position)
• Don't come to a complete stop in the set position
• Make a quick pitch before the batter is ready
• Separate their hands after coming set, then don't throw

The Infamous Balk Rules

The balk rule (Rule 6.02) is notoriously complex. Here's the famous humorous summary:

"A balk is when you do a balk"

Joking aside, the core principle is: Don't deceive the runners.

Balk Penalty

• All runners advance one base
• If balk occurs during a pitch that's hit, offense chooses the result
• The pitch doesn't count against the batter

Famous Balk Moments

• Bob Shaw (1963): 5 balks in one game
• Steve Carlton (1979): 11 balks in one season
• 1988 "Year of the Balk": MLB strictly enforced balk rules, balks skyrocketed

In Youth Baseball

Balk rules are often relaxed in youth leagues to allow kids to learn pitching mechanics without excessive penalties.