Defensive Shift

A defensive shift is the strategic repositioning of fielders based on data about where a batter typically hits the ball. Teams move fielders to locations where the batter is most likely to hit, sacrificing coverage elsewhere.

Types of Shifts

Traditional Infield Shift

• Three infielders on one side
• Shortstop moves to normal second base area
• Second baseman moves to shallow right field
• Used against extreme pull hitters

Four-Man Outfield

• Four outfielders, three infielders
• Used in specific late-game situations
• Sacrifice infield coverage

Partial Shifts

• Less extreme repositioning
• Shade fielders without full shift
• More balanced coverage

Why Shifts Work

Based on data showing:

• Some hitters pull 70%+ of ground balls
• Predictable spray charts
• Analytics identify patterns

2023 Rule Changes

MLB implemented restrictions:

• Two infielders on each side of second base
• Infielders must be on the infield dirt
• Aim to restore traditional offense

Beating the Shift

Hitters can counter by:

• Bunting toward the open side
• Going opposite field
• Adjusting approach based on shift
• Hitting the ball in the air (over the shift)

Historical Context

Shifts were used selectively for decades (Lou Boudreau shifted against Ted Williams in 1946). The analytics era made them nearly universal before restrictions.