The Current Rule
Foul balls count as strikes for the first two strikes but not thereafter. A batter with two strikes can foul off pitches indefinitely without striking out. The sole exception: a foul bunt with two strikes is a strikeout, preventing batters from bunting fouls as a stalling tactic.
When Fouls Didn't Count at All
In 19th-century baseball, foul balls were not counted as strikes. Batters could foul off pitches endlessly while waiting for their preferred pitch, producing interminable at-bats. The National League introduced the foul-strike rule in 1901, counting fouls as strikes for the first two. The American League followed in 1903. The change dramatically reduced batting averages as batters could no longer use fouls to wait indefinitely.
Why the Third-Strike Foul Wasn't Made an Out
When the foul-strike rule was adopted, making a third-strike foul an automatic out was considered too harsh. The reasoning: a foul represents a batter who made contact, a better outcome than a swing and miss. Penalizing contact as severely as a whiff seemed unjust. This value judgment, that fouling is superior to missing, underlies the current rule. Critics note that some fouls are deliberately aimed at foul territory as a stalling tactic rather than genuine hitting attempts.
The Art of Fouling Off Pitches
Fouling off pitches with two strikes is a valued NPB skill demonstrating plate discipline and bat control. Batters who force pitchers to throw 10 or more pitches per at-bat inflict cumulative damage on pitch counts. A single 15-pitch at-bat significantly impacts a starter's ability to pitch deep into a game. Fouling is not merely survival but a strategic weapon affecting the entire game's pitching economy.
Should Fouls Have a Limit?
Proposals to cap two-strike fouls occasionally surface in game-length discussions. A rule like 'the sixth foul after two strikes is a strikeout' would accelerate pace but faces fierce opposition. The principle that a batter who keeps making contact cannot be called out is considered fundamental to baseball's identity. While pitch clocks and other pace-of-play measures have been adopted, foul limits remain outside the realm of serious consideration.
The Foul Ball as Incomplete Hitting
A foul ball is an incomplete act of hitting: the bat met the ball, but the result was not a fair ball. Baseball treats this incompleteness as a do-over. Through two strikes, do-overs carry a penalty. After two strikes, do-overs are unlimited. This generosity distinguishes a baseball at-bat from scoring opportunities in other sports. Tennis allows one serve redo. Basketball allows none. Baseball allows infinite redos as long as bat meets ball. This infinite patience creates drama within a single plate appearance. Each foul extends the tension, and the eventual fair ball carries the accumulated weight of every foul that preceded it.