Line movement is the change in betting odds or handicap lines caused by betting activity, new information, or market adjustments.

It reflects how the market reacts before an event starts.

How it works

• Odds move when large amounts of money are placed

• Injuries, weather, or lineup news can shift lines

• Sharp (professional) action often triggers early movement

Example

• Opening odds: 2.10

• Heavy betting on one side

• Closing odds: 1.85

Key characteristics

• Indicates market sentiment and information flow

• Used to evaluate Closing Line Value (CLV)

• Strong movement often signals informed betting

Important note
Not all line movement is “smart money”—public betting can also move lines.