Stale Line
Odds that have not been updated to reflect new information such as injury news, lineup changes, or weather, creating temporary +EV opportunities.
Like finding a store that has not updated its prices after a sale ended -- a brief window of value.
Why it matters
Stale lines are the easiest edge in sports betting. Books that are slow to update create windows of mispricing.
How DMP uses this
DMP monitors line movements across books to identify when specific sportsbooks are stale relative to the sharp consensus.
Common mistake
Thinking stale lines last long -- they are usually corrected within minutes to hours as books catch up.