Riding a Heater
Sports Betting 101
advanced10 min read

Prop Betting Strategy: Finding Soft Lines in Player Props

Player props are where the sharpest edges hide. Here's how to build a model and find value.

Why Props Offer Value

Player props are one of the softest markets in sports betting. Here's why:

  1. Less attention from sharps — Most sharp money focuses on sides and totals
  2. Lower limits — Books accept less action, so they spend less time pricing them
  3. More props = more inefficiency — A single NFL game might have 200+ props
  4. Correlation opportunities — Props can be correlated with game outcomes

Building a Prop Model

Step 1: Collect Data

Gather the player's recent stats (last 5-10 games), season averages, and matchup data.

Step 2: Adjust for Context

  • Opponent's defense ranking against that stat category
  • Home/away splits
  • Pace of play
  • Weather (for outdoor sports)
  • Rest days

Step 3: Project a Number

Create your own projection for the player's stat line.

Step 4: Compare to the Line

If your projection differs significantly from the sportsbook's line, you may have found value.

Example

Patrick Mahomes passing yards: O/U 285.5

Your analysis:

  • Season average: 278 yards/game
  • Opponent allows 295 yards/game to QBs (5th worst)
  • Home game (Mahomes averages 290 at home)
  • Your projection: 292 yards

The over at 285.5 looks like value because your projection (292) is well above the line.

Common Prop Markets

SportPopular Props
NFLPassing yards, rushing yards, receptions, TDs
NBAPoints, rebounds, assists, 3-pointers
MLBStrikeouts, hits, total bases
NHLShots on goal, points, saves

Tips

  1. Specialize — Focus on one sport and one stat category
  2. Track your results — By sport, stat type, and book
  3. Shop aggressively — Prop lines vary wildly across books
  4. Beware of correlation — Don't double-count factors

Powered by the MIT Triple Stack

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