What Is "Good" CLV & Common Causes of Negative CLV
There is no universal benchmark for CLV because it depends on the sport, market efficiency, and bet type. However, here are general guidelines based on expert consensus and empirical data.
CLV Benchmarks: Percentage of Bets Beating the Closing Line
| CLV % | Assessment | Meaning |
|---|---|---|
| Below 50% | Consistently overpaying | Long-term losses are almost certain |
| 50-52% | Break-even territory | Not losing to CLV, but not gaining edge either |
| 53-55% | Solid | Beating the market more often than not |
| 56-60% | Very good | Clear, repeatable edge |
| 60%+ | Elite | Consistently identifying value before market corrects |
CLV Benchmarks: Average CLV Per Bet (Implied Probability)
| Average CLV | Assessment | Notes |
|---|---|---|
| +1% to +2% | Good | You are likely a profitable bettor |
| +3% to +5% | Excellent | Consistently finding significant edges |
| +5%+ | Exceptional | Rare; indicates elite market timing or information advantage |
Key Insight
Even small, consistent positive CLV compounds over time. A bettor with +2% average CLV over 1,000 bets will significantly outperform a bettor with -1% CLV, even if their short-term win rates are similar.
CLV and ROI: The Proven Correlation
The relationship between CLV and ROI (Return on Investment) is one of the most well-documented findings in sports betting research.
Data from professional bettors and academic studies consistently shows:
- ✅ Bettors with positive CLV have positive ROI over large samples
- ✅ Bettors with negative CLV have negative ROI over large samples
- ✅ The magnitude of CLV correlates with the magnitude of ROI
Note
Betting expert Joseph Buchdahl analyzed thousands of bets and found that CLV provides a much faster signal of skill than profit and loss. While it might take 2,000-3,000 bets to prove statistical significance through wins and losses, consistent positive CLV can show significance in as few as 50-100 bets.
Why This Matters
Because CLV measures your process, not your results. Results are noisy in the short term due to variance. Process is consistent. If your process is sound (positive CLV), the results will follow over time.
CLV is a leading indicator. ROI is a lagging indicator.
Five Common Causes of Negative CLV
If you are consistently getting negative CLV, you are making one or more of these mistakes:
1. Chasing Steam
Steam is when a line moves sharply due to heavy betting action. Recreational bettors see the line move and think, "The sharps are on this, I should bet it too!"
But by the time you see the move, the value is gone. You are buying high.
Warning
The Steam Trap: You see Tatum's points line move from 26.5 to 28.5 in 30 minutes. You bet Over 28.5 thinking the sharps know something. But the edge was at 26.5—you're just paying retail for stale information.
2. Betting Too Close to Game Time
The closer you get to game time, the sharper the line becomes. If you are betting 10 minutes before tip-off, you are betting into the most efficient price. The edge has already been squeezed out.
| Timing | Line Efficiency |
|---|---|
| 48+ hours before | Softest—opening lines |
| 24 hours before | Sharp money moving lines |
| 6 hours before | Most corrections complete |
| 1 hour before | Near-maximum efficiency |
| 10 minutes before | Closing line territory |
3. Betting Recreational Favorites
The public loves betting on:
- ⭐ Stars (name recognition over analysis)
- 📈 Overs (more fun to root for points)
- 🏆 Favorites (feels safer)
Sportsbooks know this and shade lines accordingly. If you are always betting the popular side, you are consistently overpaying.
Tip
This doesn't mean you should blindly fade the public. It means you should be aware that popular bets often carry extra vig baked into the line.
4. Not Line Shopping
If you only have one sportsbook account, you are leaving money on the table. The difference between -110 and -105 might seem small, but over hundreds of bets, it is the difference between profit and loss.
Example of poor process:
| Book | Odds | You Bet |
|---|---|---|
| DraftKings | -115 | ✓ (your only account) |
| FanDuel | -108 | Available |
| BetMGM | -105 | Available |
| Caesars | -110 | Available |
You paid -115 when -105 was available. That's a 1.5% edge you gave away on a single bet.
5. Impulse Betting
Betting because you are bored, because you want action, or because you "have a feeling" is a guaranteed way to get negative CLV.
Signs of impulse betting:
- Betting without checking the closing line later
- Betting games you haven't researched
- Betting to "get even" after a loss
- Betting because a game is on TV
Key Insight
Negative CLV is not bad luck. It is bad process. If your CLV is consistently negative, you do not have a betting problem—you have a discipline problem.
Self-Assessment: Negative CLV Checklist
Use this checklist to identify your negative CLV patterns:
| Behavior | Frequency | Impact |
|---|---|---|
| Betting after seeing line movement | Often / Sometimes / Rarely | High |
| Betting within 1 hour of game time | Often / Sometimes / Rarely | High |
| Using only 1-2 sportsbooks | Yes / No | Medium-High |
| Betting popular players/overs without analysis | Often / Sometimes / Rarely | Medium |
| Betting for entertainment without tracking | Often / Sometimes / Rarely | Medium |
| Betting to recover losses | Often / Sometimes / Rarely | Very High |
If you answered "Often" to multiple items, your negative CLV pattern is likely systemic, not random.
📝 Exercise
Instructions
Test your understanding of CLV benchmarks and negative CLV causes.
A bettor beats the closing line on 58% of their bets with an average CLV of +2.3%. Their current win rate over 200 bets is 49%. What should they do?
Which of the following is the MOST harmful to CLV over time?