CLV Calculator
Track your Closing Line Value—the best predictor of long-term betting success. Are you beating the closing line?
Calculate Closing Line Value
What Is Closing Line Value?
CLV measures whether you got better odds than the market's final price. The closing line is considered the most accurate odds because it incorporates all available information and sharp money.
📐 Why CLV Matters
Beating the closing line consistently = long-term profit.
Studies show CLV is a better predictor of betting success than actual win rate in small samples.
How It Works
If you bet a team at -105 and it closes at -115, you got better odds than the final market price. The market moved against you—which means you likely had an edge. Positive CLV over time = profitable betting.
Interpreting Your CLV
- Positive CLV (+1% or more): You're beating the market—strong indicator of skill
- Around 0%: Breaking even with market efficiency
- Negative CLV: You're consistently getting worse odds—review your process
⚠️ Sample Size Required
Track CLV over 200+ bets minimum. Short-term CLV can be noisy. Long-term positive CLV is the gold standard for measuring betting skill.