Closing Line Value (CLV)
Whether you got better odds than the final line at game time. The best predictor of long-term profit.
Full Definition
Closing Line Value measures whether the odds you bet are better than the closing odds (the final line when the game starts). Consistently beating the closing line is the single best predictor of long-term betting success because closing lines incorporate the most information. If you bet a prop at -115 and it closes at -140, you captured CLV. Sharp bettors focus on CLV because even a 1-2% edge over closing lines compounds into significant profit over hundreds of bets.
What's a good Closing Line Value?
Consistently beating closing lines by 2%+ implied probability indicates sharp, profitable betting.
Related terms
Expected Value (EV)
The average amount you expect to win or lose per bet over time, based on probability and odds.
Implied Probability
The probability of an outcome as implied by the betting odds, including the sportsbook's margin.
Vig / Juice
The sportsbook's built-in commission on every bet, typically around 4.5-10%.
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