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Prop Bet

sports betting

A bet on a specific occurrence within a game that doesn't directly relate to the final outcome, such as player stats or game events.

Key Takeaways

  • 1Props are bets on specific events within a game
  • 2Player props and game props are the most common
  • 3Props often have softer lines than sides and totals
  • 4Building your own models is key to finding prop value

What is a Prop Bet?

Proposition bets (props) are wagers on specific events within a game that don't necessarily relate to the final score or outcome. They've become one of the fastest-growing segments of sports betting.

Types of Props

Player Props:

  • Patrick Mahomes over/under 275.5 passing yards
  • LeBron James over/under 27.5 points
  • Aaron Judge over/under 1.5 hits

Game Props:

  • First team to score
  • Will there be overtime?
  • Total touchdowns in the first half

Novelty Props (Super Bowl):

  • Length of the national anthem
  • Color of Gatorade shower
  • Coin toss result

Finding Value in Props

Props often have softer lines than sides and totals because:

  1. Sportsbooks spend less time pricing them
  2. Lower betting limits mean less sharp action
  3. More props = more opportunities for inefficiency

Building Your Own Models

Serious prop bettors build statistical models to project player performances. Compare your projections to the sportsbook's lines to find value.

Powered by the MIT Triple Stack

Expected Value + Kelly Criterion + Monte Carlo — the same math from MIT and Bell Labs.