[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"term-betting-vig-en":3,"related-vig-en":48,"mdc--czbiha-key":66},{"id":4,"slug":5,"status":6,"section":7,"category":8,"difficulty":9,"aliases":10,"related_terms":16,"related_calculators":22,"term":26,"definition":27,"content":28,"example":29,"faq":30,"availableLocales":43},"6ed2af47-00b4-4cd2-bbea-86fab380e36e","vig","published","betting","mechanics","beginner",[11,12,13,14,15],"vigorish","juice","overround","bookmaker margin","house cut",[17,18,19,20,21],"no-vig","odds","implied-probability","kelly-criterion","margin",[23,24,25],"\u002Fbetting\u002Fno-vig","\u002Fbetting\u002Fmargin-calculator","\u002Fbetting\u002Fkelly-calculator","Vig","Vig (vigorish, juice) is the hidden commission a sportsbook charges by shifting odds so that implied probabilities sum to more than 100%. Standard NFL spreads run 4.5% vig, props can hit 12%, parlays compound to 20%+. The vig is why most bettors lose long-term even with 50% win rates.","# Vig (Vigorish)\n\nYou bet $110 on the Lakers to cover the spread at -110. They cover. You win $100. That extra $10 you risked to win $100? That's the **vig** working its way through your bankroll. Every time you place a bet at a sportsbook, the vig is the cut the book takes, baked into the odds before you even click confirm. Sharp bettors obsess over it because it's the single biggest reason most casual bettors lose long-term even when they hit 50% of their picks.\n\n## What vig actually is\n\nVig (short for vigorish, also called \"juice\" or \"the cut\") is the commission a sportsbook charges for accepting your bet. It's not a separate fee. It's hidden inside the odds.\n\nWhen both sides of a coin-flip bet pay the same amount, that's a fair game with 0% vig. Real sportsbooks never offer fair games. They shift the odds so the implied probability of all outcomes adds up to more than 100%, and the excess is their guaranteed profit.\n\nThe classic American football line: Lakers -3 (-110), Warriors +3 (-110). If you bet $110 to win $100 on either side, the book always wins $10 when an equal amount comes in on both sides. That equal-money scenario almost never happens in real life, but the vig structure is how they price for it.\n\n## How to calculate vig from odds\n\nHere's the math. Take any two-way market (Team A vs Team B with no draw). Convert each side's odds to implied probability:\n\nFor American odds:\n- Negative odds (-110): probability = 110 \u002F (110 + 100) = 52.38%\n- Positive odds (+100): probability = 100 \u002F (100 + 100) = 50.00%\n\nAdd both implied probabilities. If they sum to more than 100%, the excess is the **overround**, and the vig is the overround divided by the total.\n\nExample with standard -110\u002F-110:\n- Side A: 52.38%\n- Side B: 52.38%\n- Total: 104.76%\n- Overround: 4.76%\n- Vig: 4.76 \u002F 104.76 = 4.54%\n\nThat 4.54% is what the book is taking out of the pool. Means even if you call coin flips perfectly (50% accuracy), you lose 4.54% of every dollar wagered over enough bets. You need to hit 52.38% to break even.\n\nFor decimal odds (1.91\u002F1.91):\n- Side A: 1 \u002F 1.91 = 52.36%\n- Side B: 1 \u002F 1.91 = 52.36%\n- Total: 104.72%\n- Vig: 4.51%\n\nIf you want to skip the math, our [no-vig calculator](\u002Fbetting\u002Fno-vig) strips this out automatically. Feed it the two-sided odds and it tells you the \"fair\" odds with vig removed.\n\n## Vig varies hugely by sportsbook\n\nNot all books charge the same vig. This matters more than most casual bettors realize:\n\n| Sportsbook | Typical NFL spread vig | Typical NBA spread vig |\n|---|---|---|\n| Pinnacle | 2-3% | 2-3% |\n| Circa Sports | 3-4% | 3-4% |\n| DraftKings | 4.5-5% | 4.5-5% |\n| FanDuel | 4.5-5% | 4.5-5% |\n| BetMGM | 4.5-5.5% | 5-6% |\n| Most US books | 4.5-5% | 5-6% |\n\nPinnacle famously runs lean vig because their model is high-volume, low-margin. They take sharp action other books refuse. DraftKings and FanDuel charge nearly double Pinnacle's vig on standard markets because they target recreational bettors who don't shop lines.\n\nThe difference is huge over a season. Bet $10,000 across a season at 4.5% vig vs 2.5% vig, and you save $200 in expected loss just by line-shopping. Most casual bettors leave that money on the table.\n\n## Vig is much higher in alternate markets\n\nStandard sides and totals run 4-5% vig. Props and parlays explode much higher:\n\n- Player props: 8-12% vig is common\n- Same-game parlays: 15-25% effective vig (because of correlation)\n- Long-shot futures (championship winner): 15-30% vig spread across all teams\n- In-game live betting: 6-10% vig on standard markets\n\nThe book widens the margin where they think you have less information. You think you know if LeBron hits over 25.5 points? The book is pricing it with double the vig of a standard spread because they assume you're guessing.\n\n## How sharps fight vig\n\nThere's no way to make vig disappear, but sharp bettors minimize its impact:\n\n**Line shopping.** Different books post different lines. Sometimes you can take Lakers -3 at -105 instead of -110. Saves you $5 per $100 bet. Over a year, that's hundreds of dollars.\n\n**Reduced juice promos.** Some books occasionally offer -105 instead of -110. Pounce on these.\n\n**Bet the better side of off-market lines.** When Pinnacle has Lakers at -2.5 and DraftKings has them at -3, the Lakers bet at -2.5 has lower implied vig.\n\n**Skip high-vig markets.** SGPs and player props are usually -EV unless you have specific information edges. Most pros stick to standard sides and totals.\n\n**Use rebates.** Some offshore books and exchanges (Betfair, ProphetX) refund a percentage of losses, effectively reducing vig.\n\n## Common mistakes around vig\n\n**Mistake 1: Thinking 50% win rate means break-even.** At -110\u002F-110, you need 52.4% to break even. Hitting \"around half\" your bets is a slow bleed.\n\n**Mistake 2: Not factoring vig into prediction accuracy claims.** A tout brags about 53% win rate. Sounds good. But at standard vig, that's about +0.5 units per 100 bets after juice. Almost nothing.\n\n**Mistake 3: Ignoring vig on parlays.** A 4-team parlay at standard odds compounds the vig of each leg. The book's effective edge can hit 20% even though each leg looks \"only\" 4.5%.\n\n**Mistake 4: Shopping odds but not lines.** Getting -108 on the Lakers -3 is fine, but if another book has them at -2.5 -110, the half-point is worth more than the price difference.\n\n## Why this matters for your bankroll\n\nVig is the reason most bettors lose money long-term even when they win half their bets. The book doesn't need you to be wrong. The book just needs you to keep playing through their juice.\n\nIf you take nothing else from this page: when you compare bets, always think in terms of true probability after stripping vig, not the odds on the screen. The [no-vig calculator](\u002Fbetting\u002Fno-vig) does the work for you.\n\nFor the bigger picture on managing the long-term math, see our [Kelly criterion calculator](\u002Fbetting\u002Fkelly-calculator) which factors vig into optimal bet sizing.\n",null,[31,34,37,40],{"answer":32,"question":33},"They're the same concept under different names. House edge is the casino term, vig is the sportsbook term. Both describe the percentage of every dollar wagered that the operator expects to keep over time. A 4.5% vig means the book wins 4.5 cents of every dollar bet across a balanced book.","What's the difference between vig and house edge?",{"answer":35,"question":36},"Pinnacle is famous for the lowest vig in the industry (2-3% on standard markets), but they're not legal in many US states. Circa Sports in Vegas runs around 3-4%. DraftKings, FanDuel, and BetMGM all sit at 4.5-5.5% for standard sides and totals. Compare odds across 3-4 books before every bet to find the best line.","How do I find the lowest-vig sportsbook?",{"answer":38,"question":39},"Not at traditional sportsbooks. The only ways to bet without paying vig are betting exchanges like Betfair (where you pay commission only on winnings) or peer-to-peer platforms like Sporttrade. Even these have some friction (commission rates of 2-5%) but it's structurally different from sportsbook vig.","Is no-vig betting actually possible?",{"answer":41,"question":42},"Each leg of a parlay carries its own vig, and the legs multiply. A 4-leg parlay at standard -110 odds has an implied book edge of around 20-25%, not 4.5%. Same-game parlays are even worse because of correlation (the book widens margins to account for the fact that legs are not independent). This is why pros mostly avoid parlays.","Why is parlay vig so much higher than single-bet vig?",[44,45,46,47],"en","ru","de","tr",[49,53,57,62],{"slug":50,"section":7,"category":18,"difficulty":9,"term":51,"definition":52},"decimal-odds","Decimal Odds","Decimal odds (European odds) represent the total return per unit staked, including the original stake. A decimal odd of 2.50 means a $1 bet returns $2.50 total ($1.50 profit plus $1 stake). This is the most intuitive odds format, used predominantly in Europe, Australia, and by most online bookmakers. Decimal odds are simply calculated as 1 divided by implied probability.",{"slug":19,"section":7,"category":54,"difficulty":9,"term":55,"definition":56},"fundamentals","Implied Probability","Implied probability is the conversion of betting odds into a percentage that represents the bookmaker's assessed likelihood of an outcome occurring. It answers the question: according to these odds, how often does this outcome need to happen for the bet to break even? Implied probability includes the bookmaker's margin (vig), so the sum of all implied probabilities in a market exceeds 100%.",{"slug":20,"section":7,"category":58,"difficulty":59,"term":60,"definition":61},"strategies","advanced","Kelly Criterion","The Kelly Criterion is a mathematical formula that calculates the optimal percentage of your bankroll to wager on a bet based on your edge and the odds offered. Developed by John Kelly at Bell Labs in 1956, it maximizes long-term bankroll growth while minimizing the risk of ruin. Professional bettors use fractional Kelly (25-50%) to reduce volatility.",{"slug":21,"section":7,"category":18,"difficulty":63,"term":64,"definition":65},"intermediate","Margin","Bookmaker margin (also called vig, vigorish, juice, or overround) is the built-in profit percentage that bookmakers add to odds, ensuring they profit regardless of the outcome. It's calculated as the sum of implied probabilities minus 100%. 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