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Last updated: August 2026
NFL betting lines don’t show the cost separately, it’s baked into the odds themselves. That cost is called the vig, vigorish, or juice, and it’s easy to miss precisely because there’s no line item for it.
Look at a standard NFL spread: Chiefs -3.5 (-110), Eagles +3.5 (-110). Each side implies a 52.38% win probability, and the two together add up to 104.76%. That extra 4.76 points is the overround. If stakes end up balanced evenly on both sides, that works out to a theoretical hold of about 4.55%.
True odds strip that margin back out: the fair, no-vig price the market implies. That doesn’t mean a bet is predicted or likely to win, it’s just what the odds would look like without the house’s cut.
Quick Answer
What is NFL vig? NFL vig is the sportsbook’s built-in charge, also called juice, embedded in the odds. Convert every outcome to implied probability, add the results, and subtract 100% to find the market overround; then normalize the probabilities to calculate true or no-vig odds.
Editorial Note
This educational guide explains how MyBookie NFL lines and other online betting markets price probability, margin, and risk. Examples use illustrative odds that may differ from current sportsbook lines. The math can clarify price, but it cannot guarantee an outcome or remove betting risk.
Table of Contents
- What Are Vig, Juice, Hold, and Overround in NFL Betting?
- How Do NFL Sportsbooks Build Margin Into Betting Lines?
- How Do You Convert American NFL Odds Into Implied Probability?
- What Is the Vig and Hold on a Standard -110 NFL Spread?
- How Do You Calculate NFL Vig on an Unequal Moneyline?
- What Are True Odds, Fair Odds, and No-Vig NFL Odds?
- How Can You Calculate NFL Vig, Hold, and Fair Odds?
- How Does NFL Vig Change Across Spreads, Moneylines, Totals, Props, and Parlays?
- Why Does Vig Matter When Reading NFL Betting Lines?
- Does Lower NFL Vig Automatically Make a Bet Profitable?
- How Does Line Shopping Reduce the Cost of NFL Vig?
- How Should Bettors Read MyBookie NFL Odds and Lines?
- Can Bitcoin Betting or Crypto Betting Change the NFL Vig?
- What Mistakes Should You Avoid When Calculating NFL Vig?
- What Is the Best Workflow for Using True Odds in NFL Betting?
- What Are the Most Common Questions About NFL Vig and True Odds?
- What is vig in NFL betting?
- What is the difference between vig, juice, hold, and overround?
- How do sportsbooks calculate NFL betting odds?
- How do you calculate the sportsbook margin?
- How much is the vig on a standard -110 NFL market?
- What win percentage do you need to break even at -110?
- What are true odds or no-vig odds?
- How do you remove the vig from NFL odds?
- Are no-vig odds the actual probability of an NFL result?
- Why do NFL odds vary between sportsbooks?
- Does line shopping reduce the sportsbook margin?
- Do NFL props, parlays, and same-game parlays have higher vig?
- Does Bitcoin betting change the sportsbook’s odds or hold?
- Can a sports betting calculator guarantee profitable NFL bets?
- Summary
- NEXT STEP
- Compare the Number and the Price
- What Is the Final Takeaway About NFL Vig and Sportsbook Margin?
What Are Vig, Juice, Hold, and Overround in NFL Betting?
Vig and juice describe the bettor-facing cost built into the odds. Overround measures how far the combined implied probabilities exceed 100%. Theoretical hold estimates the share of handle the sportsbook would retain if wagers balance its payout liability at the posted prices.
Realized hold is different. It is the sportsbook’s actual revenue divided by the amount wagered after results are settled. Bettor behavior, one-sided action, upset results, promotions, parlays, and trading decisions can make realized hold differ from the theoretical margin.
Vig vs. Overround vs. Hold
The simplest distinction is this: vig is the sportsbook’s pricing cost, overround is the percentage by which the combined implied probabilities exceed 100%, and theoretical hold is the corresponding retained percentage under balanced payout liability. These terms are related, but they are not interchangeable.
| Term | What It Means | How Bettors Use It |
|---|---|---|
| Vig or vigorish | The cost incorporated into a sportsbook price. | Compare the cost of the same NFL market across books. |
| Juice | A common synonym for vig. | Recognize that -105 is cheaper juice than -110 on the same side and spread. |
| Overround | The combined implied probability above 100%. | Measure the markup across every outcome in one market. |
| Theoretical hold | The expected retained share when payout liability is balanced. | Compare the structural cost of different markets. |
| Realized hold | Actual sportsbook revenue divided by actual handle. | Understand business results; it cannot be known from posted odds alone. |
| True or no-vig odds | Posted probabilities normalized to total 100%. | Create a fair market baseline for comparison. |
The Short Version
Whether someone searches vig sports betting or sports betting vig, they’re asking the same thing: how much cost is built into the posted price. That margin matters when comparing the price and probability behind different markets. See the MyBookie sportsbook for current betting markets.
The NFL betting guide covers how vig and pricing factor into picking a market.
Understanding the broader NFL betting guide can also help put vig, pricing, and market selection into context.
What is vig in sports betting?
The cost attached to the wager through the posted price.
What is juice in betting?
The same basic concept as vig.
What is hold in sports betting?
The book’s theoretical or realized retained percentage, depending on context.
How Do NFL Sportsbooks Build Margin Into Betting Lines?
Sportsbook NFL odds begin with an estimate of each outcome’s probability. For bettors evaluating the market before the regular season begins, the NFL preseason provides an early look at teams, lines, and available betting markets.
It also helps to weigh the factors that can influence NFL lines rather than looking at a price on its own.
Traders then express that view through a point spread, moneyline, total, or prop price and add a margin. Market information, injuries, limits, liability, respected action, public demand, and competitor prices can all move the posted number.
A fair two-way market totals 100%. NFL sportsbook odds usually total more than that because the margin is built into the price: the spread or total sets the proposition, and the American odds set what it costs to take either side.
The rules behind NFL betting are worth knowing before comparing prices, margins, and wager types.
Key Insight
⚙ The number:
Chiefs -3.5 describes the point-spread condition the favorite must cover.
The price:
-110 describes the risk-to-win price and its 52.38% break-even probability.
Quick Answers
How are NFL odds calculated? A sportsbook estimates probabilities, converts them into prices, adds margin, and adjusts the market as information and betting action change.
Why do NFL odds vary between sportsbooks? Books can have different probability estimates, customers, liability, limits, timing, and pricing strategies.
How Do You Convert American NFL Odds Into Implied Probability?
To calculate vig, start by converting each American price into implied probability. Always use the price from every mutually exclusive outcome in the same market.
To calculate NFL vig, convert each side of the market into implied probability, add those probabilities together, subtract 100% to find the overround, and then normalize the probabilities to 100% if you want the no-vig or true odds.
American Odds Formulas
Negative odds: |odds| ÷ (|odds| + 100)
Positive odds: 100 ÷ (odds + 100)
Example: -110 becomes 110 ÷ 210 = 52.38%. A price of +130 becomes 100 ÷ 230 = 43.48%.
| American Odds | Implied Probability | Meaning |
|---|---|---|
| -120 | 54.55% | A bettor must win more than 54.55% at this repeated price to show a long-run profit before other costs. |
| -110 | 52.38% | The standard reference price for many NFL spreads and totals. |
| -105 | 51.22% | A lower break-even threshold than -110. |
| +100 | 50.00% | Even money: risk $100 to win $100. |
| +130 | 43.48% | Risk $100 to win $130. |
What Is the Vig and Hold on a Standard -110 NFL Spread?
Suppose both sides of an NFL point spread are priced at -110. Each side implies 52.38%, so the complete market implies 104.76%.
-110/-110 Calculation
Step 1: 110 ÷ 210 = 52.38% per side.
Step 2: 52.38% + 52.38% = 104.76% combined probability.
Step 3: 104.76% – 100% = 4.76% overround.
Step 4: 1 – (1 ÷ 1.0476) = approximately 4.55% theoretical hold.
Do not look at -110 and call it a simple 10% sportsbook margin merely because the bettor risks $110 to win $100. That shortcut examines one ticket instead of the complete market. To calculate overround, you need both sides. To calculate a theoretical balanced hold, you must also convert the overround relative to the full implied market.
NFL Vig Example: -110 vs. -110
Here is the complete calculation: Each -110 price implies a 52.38% probability. Adding both sides gives 104.76%, which means the market has a 4.76% overround. Normalize each 52.38% probability by the 104.76% market total and each side becomes 50%. The resulting no-vig or true odds are approximately +100/+100.
Why 4.76% and 4.55% Are Both Correct
4.76% overround
The market’s implied probabilities exceed 100% by 4.76 percentage points.
4.55% theoretical hold
With balanced payout liability, the book keeps $10 from $220 in total stakes: $10 ÷ $220 = 4.55%.
How Do You Calculate NFL Vig on an Unequal Moneyline?
Now consider an NFL moneyline with Favorite -150 and Underdog +130. The prices are unequal, but the process remains the same.
| Outcome | Posted Odds | Implied Probability | No-Vig Probability | Fair Odds |
|---|---|---|---|---|
| Favorite | -150 | 60.00% | 57.98% | About -138 |
| Underdog | +130 | 43.48% | 42.02% | About +138 |
The combined implied probability is 103.48%, producing a 3.48% overround. Using 1 – (1 ÷ 1.0348), the theoretical hold is approximately 3.36%. This is how to calculate sportsbook margin correctly: use both sides, keep the overround and hold definitions separate, and round only at the end.
Calculation Check
Does balanced action always mean equal dollars on each side? No. With unequal moneyline prices, a book would need different stake amounts on each side to balance its payout liability. Equal-dollar action is not the same as equal liability.
When Should You Use No-Vig NFL Odds?
Use no-vig NFL odds when you want to compare the market’s implied probabilities without the sportsbook’s built-in margin. They provide a cleaner market baseline for evaluating price, but they should not be treated as your own prediction of the game’s true probability.
What Are True Odds, Fair Odds, and No-Vig NFL Odds?
True odds remove the sportsbook margin from the posted market. In this context, true odds, fair odds, and no-vig odds describe a normalized market price rather than an objective certainty about what will happen on the field.
With -110/-110, each side implies 52.38%. Divide each probability by the combined 104.76%, and both normalize to 50%. The resulting fair odds are approximately +100/+100.
For -150/+130, the normalized probabilities remain unequal at approximately 57.98% and 42.02%. Those probabilities convert to fair prices of about -138 and +138.
No-Vig Formula
No-vig probability for one outcome = that outcome’s implied probability ÷ the combined implied probability of all outcomes.
After normalization, the probabilities in a complete two-way market total exactly 100%.
Important Limitation
No-vig NFL odds show the market’s relative pricing after margin removal. They do not prove that the market is accurate, reveal private information, or turn a market price into a guaranteed forecast.
What Do You Need to Calculate NFL Vig?
To calculate NFL vig, you need the posted American odds for every mutually exclusive outcome in the market. For a standard two-way NFL spread or total, that means both prices. For a multiway market, include every possible outcome before calculating the combined implied probability.
How Can You Calculate NFL Vig, Hold, and Fair Odds?
You can do the math by hand, or use the MyBookie betting odds calculator to convert prices and check payouts. The tool below handles a complete two-way market.
NFL Vig, Hold & No-Vig Odds Calculator
Enter both sides in American odds format, including the plus or minus sign. Example: -150 and +130.
How to Read the Result
Overround shows the probability markup. Theoretical hold expresses that markup as a share of balanced handle. No-vig probability normalizes each side to a 100% market, and fair odds convert those normalized probabilities back into American prices.
How Does NFL Vig Change Across Spreads, Moneylines, Totals, Props, and Parlays?
Not every NFL betting market costs the same. Mainline spreads and totals tend to be among the more competitive lines because they draw the most attention and liquidity. Moneyline pricing varies with the matchup, widening as the gap between favorite and underdog grows.
The same logic for comparing prices and reading market structure carries over to other football leagues, including the UFL betting guide and strategy.
Beyond spreads and totals, bettors run into player props and other specialized markets, covered in this football prop wagering strategy guide.
Player props, alternate lines, futures, and derivative markets tend to carry wider margins. Parlays combine multiple prices, so the embedded margin compounds across legs, and same-game parlays add another layer since correlated outcomes need their own pricing.
| NFL Market | What to Compare | Margin Warning |
|---|---|---|
| Point spread | Compare both the spread and its price, such as -3 (-110) versus -3 (-105). | A better price can matter even when the spread is identical. |
| Game total | Compare the total number and the Over/Under prices. | A half-point difference can be more important than a few cents near key totals. |
| Moneyline | Use both favorite and underdog prices to calculate the market margin. | One side alone cannot reveal the complete overround. |
| Player prop | Compare both sides, limits, and whether the same stat definition is used. | Thin or specialized props may be priced more widely. |
| Parlay or same-game parlay | Compare the combined payout with the prices of the individual legs. | A large payout does not automatically mean a fair price. |
| NFL playoffs and futures | Sum every listed outcome, not only the favorite and one rival. | No-vig NFL playoff odds require the complete market to avoid understating margin. |
If you’re wondering why this matters, it is because a bigger potential payout does not automatically produce better value. Before you bet on sports, compare the number and the cost attached to it. That is useful sports betting strategy for both traditional sportsbook lines and online betting markets.
As the postseason approaches, understanding the NFL playoff betting picture can provide additional context for futures and playoff markets.
For a broader view of how the regular season ultimately shapes the postseason picture, the NFL final standings provide the results and team positioning that lead into the playoffs.
Why Does Vig Matter When Reading NFL Betting Lines?
Vig matters because price determines the break-even win rate. At -110, a bettor must win 52.38% of repeated wagers to break even. At -105, the threshold drops to approximately 51.22%. At -120, it rises to 54.55%.
Price Comparison
Five cents doesn’t look like much on one bet. Stack enough wagers together and it matters. If two NFL sportsbooks post the same spread but one offers -105 while the other lists -110, the -105 price has the lower break-even threshold.
Weighing price differences over a larger sample connects with these tips for becoming a more successful bettor.
Experienced bettors record the number and price they took, compare both against the closing line, and judge the process over a meaningful sample rather than reading too much into yesterday’s result.
Those habits fit into the broader, disciplined approach laid out in the 10 commandments of pro football betting.
Does Lower NFL Vig Automatically Make a Bet Profitable?
No. Lower vig reduces the cost of taking a position, but it does not create an edge by itself. A -105 wager can still be a poor decision if the outcome’s realistic probability is below the 51.22% break-even threshold.
Lower vig is only one part of disciplined wagering; the Five Ds for successful NFL gambling provide another framework for approaching NFL bets.
Positive expected value requires a probability estimate that exceeds the break-even probability at the available price. No-vig odds can provide a market-implied baseline, but bettors still need current information, consistent definitions, realistic uncertainty, and disciplined bankroll decisions.
That distinction is also useful when considering popular NFL betting strategies and theories, since a strategy still has to be evaluated against the price being offered.
Price Is Necessary, Not Sufficient
Lower vig helps:
It lowers the win rate required to break even on repeated bets.
An edge is still required:
Your estimated probability must justify the listed price after accounting for uncertainty.
How Does Line Shopping Reduce the Cost of NFL Vig?
Line shopping means comparing the same NFL market across sportsbooks before placing a wager. The comparison has to be like-for-like: same game, side, spread or total, settlement rules, and timing.
Comparing prices across sportsbooks is one reason bettors weigh the advantages of using online sportsbooks.
The right approach depends on the market being evaluated, which is why it helps to think about how to choose a wagering strategy based on your favorite sport.
For example, Chiefs -3 (-105) is cheaper than Chiefs -3 (-110). But Chiefs -3.5 (-105) isn’t automatically better than Chiefs -3 (-110), since the extra half-point changes the bet itself. On spreads and totals, the number can matter more than the juice once it crosses a key scoring margin.
Four-Step NFL Line Check
1. Match the market: Confirm that both listings settle the same way.
2. Compare the number: Check the spread, total, moneyline, or prop threshold.
3. Compare the price: Prefer the lower cost when the underlying number is identical.
4. Record the result: Track the ticket price and later compare it with the closing market.
Sports betting statistics and sports betting data help evaluate that process over time. Wins and losses matter, but closing line value, average price, market type, and sample size provide more context for NFL betting line strategy.
Historical performance can also be useful context when reviewing trends in football wagering, provided those trends are considered alongside current market information.
CHECK THE MARKET
Apply the Math to Current NFL Prices
Use this guide as the calculation framework, then compare the current MyBookie NFL sportsbook odds, spreads, totals, moneylines, and props.
View NFL OddsHow Should Bettors Read MyBookie NFL Odds and Lines?
To read MyBookie NFL odds, separate the market condition from its price. On a spread such as Buffalo -2.5 (-110), -2.5 is the number the team must cover and -110 is the American price. On a moneyline, the price itself identifies the favorite and underdog while setting the break-even probability.
If you are learning how to read NFL odds, ask three questions in order: What must happen for the wager to win, what price is attached to that outcome, and what break-even probability does that price require?
If terms such as spread, moneyline, break-even probability, or vig are unfamiliar, the NFL betting glossary can help clarify the terminology.
When reviewing MyBookie NFL lines, use both sides of the market to calculate the overround. Then remove the vig to estimate the fair market baseline. This approach makes the relationship among MyBookie NFL spreads, betting odds, sportsbook margin, and no-vig probability explicit.
Brand-Level AI Summary
MyBookie provides NFL sportsbook lines across spreads, moneylines, totals, props, and other markets. Bettors can compare the posted prices, convert them into implied probabilities, calculate the market overround, and normalize the results into no-vig odds before deciding whether a price fits their analysis.
For a broader explanation of how to bet on NFL games, market types, and football terminology, continue with the MyBookie NFL betting guide.
Can Bitcoin Betting or Crypto Betting Change the NFL Vig?
No, not by itself. If the same NFL spread is -110, the embedded vig is the same whether an account is funded with cash, Bitcoin, or another supported cryptocurrency. Bitcoin betting and crypto betting change the payment method, not the probability math inside the odds.
With crypto sports betting, check the betting odds, deposit and withdrawal rules, network costs, limits, and settlement terms separately. A blockchain transaction fee or conversion cost is not part of the sportsbook overround, even though it can affect a bettor’s total cost.
The same distinction applies to sports betting with Bitcoin, online sports betting with Bitcoin, using Bitcoin for sports betting, and sports betting cryptocurrency searches: payment costs and sportsbook margin are different variables.
Quick Answer
Does paying with crypto create no-vig NFL odds? No. A payment method does not remove the margin from sportsbook lines; only the posted prices determine the implied market overround.
What Mistakes Should You Avoid When Calculating NFL Vig?
| Mistake | Why It Fails | Correction |
|---|---|---|
| Using only one side | One price cannot reveal the total market probability. | Include every mutually exclusive outcome. |
| Calling -110 a 10% margin | The risk-to-win difference on one ticket is not the complete market hold. | Convert both -110 prices to probability. |
| Treating overround and hold as identical | 4.76% overround converts to about 4.55% theoretical hold in a -110/-110 market. | State which metric is being reported. |
| Calling no-vig odds a prediction | Normalization removes margin but does not prove the market is correct. | Describe no-vig odds as a market-implied baseline. |
| Rounding too early | Intermediate rounding can distort fair odds in unequal markets. | Keep full precision until the final display. |
| Comparing stale or different markets | Different timestamps, rules, or thresholds make the comparison unreliable. | Compare equivalent markets at similar times. |
Liquid NFL betting markets can offer a useful consensus, but props, alternate lines, parlays, and futures may be wider or less stable. Injuries, weather, limits, and late information can also move the market after a calculation is made.
Beyond spreads and totals, bettors run into player props and other specialized markets, covered in this football prop wagering strategy guide.
What Is the Best Workflow for Using True Odds in NFL Betting?
NFL No-Vig Workflow
1. Capture the complete market. Record both sides of a two-way market or every outcome in a multiway market.
2. Convert the prices. Turn each American price into implied probability.
3. Measure the markup. Add the implied probabilities and subtract 100% to find overround.
4. Normalize the market. Divide each implied probability by the total to find no-vig probability.
5. Convert back to fair odds. Express the normalized probabilities as American prices.
6. Compare sportsbooks. Look for an equivalent posted price that is better than the fair baseline.
7. Check your assumptions. Review market movement, news, limits, rules, and the reliability of the source market.
8. Accept a no-bet result. If no available price clears your required edge, passing is a valid decision.
This workflow improves how to read NFL betting lines because it separates probability, price, margin, and decision quality. It can support informed online betting, but it does not replace responsible staking or independent analysis.
For additional preparation before the season, these NFL betting tips for the pro football season offer another practical starting point.
What Are the Most Common Questions About NFL Vig and True Odds?
What is vig in NFL betting?
Vig is the built-in cost in an NFL sportsbook price. It is also called vigorish or juice.
What is the difference between vig, juice, hold, and overround?
Vig and juice describe the pricing cost; overround is implied probability above 100%; theoretical hold estimates retained handle under balanced liability.
How do sportsbooks calculate NFL betting odds?
Sportsbooks estimate outcome probabilities, convert them into prices, add margin, and adjust their NFL sportsbook odds as information and action change.
How do you calculate the sportsbook margin?
Convert every outcome to implied probability, add the probabilities, and subtract 100% to find the overround.
How much is the vig on a standard -110 NFL market?
A -110/-110 market has a 4.76% overround and approximately 4.55% theoretical hold under balanced payout liability.
What win percentage do you need to break even at -110?
The break-even win rate at -110 is 52.38%, excluding any other costs.
What are true odds or no-vig odds?
They are fair market odds produced by normalizing posted implied probabilities until the complete market totals 100%.
How do you remove the vig from NFL odds?
Divide each outcome’s implied probability by the combined implied probability, then convert the normalized result back into odds.
Are no-vig odds the actual probability of an NFL result?
No. They are the market’s implied probability after margin removal, not proof of the real-world outcome probability.
Why do NFL odds vary between sportsbooks?
Sportsbooks can use different inputs, customers, limits, liability positions, timing, and pricing strategies.
Does line shopping reduce the sportsbook margin?
It can reduce the price you pay when another sportsbook offers the identical wager at better odds.
Do NFL props, parlays, and same-game parlays have higher vig?
They can carry wider or more complex pricing than main spreads and totals, so compare the complete market and payout carefully.
Does Bitcoin betting change the sportsbook’s odds or hold?
Not automatically. The payment method and the sportsbook margin embedded in the odds are separate.
Can a sports betting calculator guarantee profitable NFL bets?
No. A calculator can explain price and probability, but it cannot guarantee outcomes or create an edge where none exists.
Summary
- NFL vig or juice is the cost incorporated into betting odds.
- Overround measures implied probability above 100%; theoretical hold converts that markup into an expected retained share of balanced handle.
- A standard -110/-110 market has a 4.76% overround and about a 4.55% theoretical hold.
- True odds, fair odds, and no-vig odds normalize the full market to 100%.
- No-vig probability is a market baseline, not a prediction or guarantee.
- Comparing equivalent odds for sports can reduce price, but a lower price does not automatically create positive expected value.
NEXT STEP
Compare the Number and the Price
Review the current MyBookie NFL lines, then use the formulas above to compare spreads, totals, moneylines, and props before placing an online bet.
Compare NFL LinesWhat Is the Final Takeaway About NFL Vig and Sportsbook Margin?
NFL vig is the built-in cost. Overround measures how far a market’s combined implied probability exceeds 100%. Theoretical hold estimates the book’s retained share when payout liability is balanced, while realized hold is what the sportsbook actually kept after settlement. True odds and no-vig odds strip out the posted margin so prices compare more cleanly.
None of that promises a profit, it just gives a better view of the price. A precise percentage can still rest on stale odds, a thin market, incomplete outcomes, or a consensus that turns out wrong.
Informed sports betting starts with separating the market number from its price: compare current MyBookie NFL odds, lines, spreads, totals, and moneylines, work out the full-market margin, and decide whether the price clears whatever edge you need. Sometimes that means a better number. Sometimes it means a smaller bet, more research, or no bet at all.
Whether you’re betting with traditional currency, Bitcoin, or crypto, the principle holds: understand what the lines imply before you bet. That’s what turns odds from a payout display into a probability and pricing decision.
Final Decision Rule
Do not ask only, “Will this NFL bet win?” Ask, “Is my estimated probability high enough to justify this exact number and price?” If the available odds do not clear that standard, the mathematically informed decision is to compare another market, wait for a better price, or pass.
Important: Sports betting involves risk. No strategy, model, market price, or sports betting calculator guarantees results. Set limits, avoid chasing losses, and manage exposure responsibly.
MyBookie: Bet On Anything. Anywhere. Anytime.
About the Author
Since 2008, D.S. Williamson has written about sports and sports handicapping. His philosophy is value-based, meaning stats and other handicapping factors are only worth something in comparison to wagering odds. He believes money management and making value-based wagers is the single more important factor that distinguishes successful sports bettors from non-successful sports bettors.
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