Odds Boost & Promo Value Calculator

How to Evaluate Odds Boosts

Sportsbooks offer odds boosts as promotions, but not all boosts are created equal. The key to evaluating any boost is calculating the Expected Value (EV) - the average profit you'd make if you could bet the same boost infinitely. A positive EV (+EV) boost means you have a mathematical edge over the sportsbook.

Understanding Fair Odds

The "fair odds" represent what the odds would be with zero house edge (no vig). You can estimate fair odds by:

• Pinnacle method: Use sharp sportsbook lines as a benchmark
• No-vig calculator: Remove the juice from current market odds
• Consensus: Average odds across multiple sportsbooks
• Your model: If you have your own probability estimates

Promo Conversion Tips

"Bet $5, Get $150 in Bonus Bets" sounds amazing, but the actual value depends on the bonus type. Bonus bets typically convert at 70-80% of face value because the stake isn't returned on wins. Cash bonuses are worth 100%, while site credit falls somewhere in between.

Red Flags to Watch

• High rollover requirements: 10x+ rollover destroys bonus value
• Boosted parlays with correlation: Sportsbooks boost what's already overpriced
• Short expiration: Forces suboptimal bets
• Max bet limits: $10 max on a +500% EV boost = $50 total value