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All betting terms

Betting Glossary

Underdog (Dog)

Definition

The team or outcome the market expects to lose, priced with positive odds (e.g. +130) or getting points on the spread. Underdogs pay more than even money because they win less often.

Related terms

  • Favorite — The side the market expects to win — priced with negative odds (e.g. −150) or laying points. Bigger negative = stronger favorite.
  • Moneyline — A bet on which team wins outright, no point spread. Favorites carry negative odds, underdogs positive odds.

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