[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"term-betting-vigorish-en":3,"related-vigorish-en":39,"mdc--1eoytl-key":57},{"id":4,"slug":5,"status":6,"section":7,"category":8,"difficulty":9,"aliases":10,"related_terms":16,"related_calculators":21,"term":27,"definition":28,"content":29,"example":30,"faq":31,"availableLocales":32},"3f9ca269-6756-4aa2-90e8-99f355ba1871","vigorish","published","betting","fundamentals","beginner",[11,12,13,14,15],"Vig","Juice","Overround","Bookmaker Margin","House Edge",[17,18,19,20,15],"Margin","Implied Probability","Odds","Expected Value",[22,23,24,25,26],"\u002Fbetting\u002Fmargin-calculator","\u002Fbetting\u002Fodds-converter","\u002Fbetting\u002Fimplied-probability","\u002Fbetting\u002Fvalue-bet-calculator","\u002Fbetting\u002Farbitrage-calculator","Vigorish","The commission or fee charged by bookmakers built into betting odds, representing the bookmaker's margin and the bettor's cost of wagering.","## What is Vigorish?\n\nYou bet $110 to win $100 on the Chiefs. Your friend bets $110 to win $100 on the Eagles (opposite outcome). One of you wins $100, the other loses $110.\n\n**The math:** Combined you put in $220, combined you take back $210 ($110 stake + $100 win). **The bookmaker keeps $10 risk-free.**\n\nThat $10 is the **vigorish** - the hidden tax on every bet you make.\n\n> **In plain English:** Vigorish (vig) is how bookmakers guarantee profit regardless of who wins. It's built into the odds, making every bet slightly unfair in the house's favor.\n\n## TL;DR - Quick Reference\n\n| Term | Meaning |\n|------|---------|\n| **Vigorish (Vig)** | Bookmaker's commission\u002Fprofit built into odds |\n| **Typical amount** | 4.5% - 10% depending on market |\n| **How it's hidden** | Odds are worse than fair (1.91 instead of 2.00) |\n| **Your cost** | Need 52.4% win rate to break even at -110 odds |\n| **To beat it** | Find [value bets](\u002Fen\u002Fglossary\u002Fbetting\u002Fvalue-betting) where true probability > [implied probability](\u002Fen\u002Fglossary\u002Fbetting\u002Fimplied-probability) |\n| **Synonym** | Margin, Juice, Overround, House Edge |\n\n**Bottom line:** Every bet includes a hidden fee. Understanding vig is the first step to profitable betting.\n\n---\n\n## For Beginners: The Bookmaker Tax\n\nThink of vigorish as a **sales tax on betting**. When you buy something for $10 with 10% tax, you pay $11. With betting, the \"tax\" is hidden inside the odds.\n\n### The Fair Coin Flip Example\n\n**Fair odds (no vig):**\n- Heads: 2.00 [decimal odds](\u002Fen\u002Fglossary\u002Fbetting\u002Fdecimal-odds) (50% probability)\n- Tails: 2.00 [decimal odds](\u002Fen\u002Fglossary\u002Fbetting\u002Fdecimal-odds) (50% probability)\n- Total implied probability: 50% + 50% = **100%** (fair)\n\n**Bookmaker odds (with vig):**\n- Heads: 1.91 decimal odds (52.4% implied probability)\n- Tails: 1.91 decimal odds (52.4% implied probability)\n- Total implied probability: 52.4% + 52.4% = **104.8%**\n\n**That extra 4.8% is the vig.** The bookmaker priced both outcomes as if they're more likely than 50%, guaranteeing profit. This is known as [overround](\u002Fen\u002Fglossary\u002Fbetting\u002Foverround).\n\n### Why \"110 to Win 100\"?\n\nAmerican odds of **-110** are standard vig for spread betting:\n- You risk $110 to win $100\n- If you win: Get back $210 ($110 stake + $100 profit)\n- If you lose: Lose $110\n- **The extra $10 you risk is the vig**\n\nTo break even at -110 odds:\n$$Breakeven = \\frac{110}{110 + 100} = \\frac{110}{210} = 52.38\\%$$\n\n**You need 52.4% win rate just to break even**, not 50%. That 2.4% difference is the vig eating your profits.\n\n---\n\n## The Math Behind Vig\n\n::chart-vig-impact\n::\n\n### Calculating Vig from Decimal Odds\n\n**Formula:**\n$$Vig = \\left(\\frac{1}{Odds_A} + \\frac{1}{Odds_B}\\right) - 1$$\n\n**Example:** Tennis match Djokovic vs. Alcaraz\n- Djokovic: 1.85\n- Alcaraz: 2.10\n\n$$Vig = \\left(\\frac{1}{1.85} + \\frac{1}{2.10}\\right) - 1 = (0.541 + 0.476) - 1 = 0.017 = 1.7\\%$$\n\n**Implied probabilities:**\n- Djokovic: 1\u002F1.85 = 54.1%\n- Alcaraz: 1\u002F2.10 = 47.6%\n- **Total: 101.7%**\n\nThe probabilities add up to more than 100% because the bookmaker built in 1.7% profit margin.\n\n### Converting Vig to Fair Odds\n\nTo find the **fair odds** (no vig), remove the overround:\n\n**Fair Probability = Implied Probability \u002F (1 + Vig)**\n\nUsing the tennis example:\n- Djokovic fair probability: 54.1% \u002F 1.017 = 53.2%\n- Alcaraz fair probability: 47.6% \u002F 1.017 = 46.8%\n- Now adds to 100% ✓\n\n**Fair odds:**\n- Djokovic: 1\u002F0.532 = 1.88 (was 1.85)\n- Alcaraz: 1\u002F0.468 = 2.14 (was 2.10)\n\nThe bookmaker shaved about **0.03-0.04 odds** from each side. That's the vig.\n\n---\n\n## Vig Across Different Markets\n\n::chart-vig-comparison\n::\n\n| Market Type | Typical Vig | Example | Why Different? |\n|-------------|-------------|---------|----------------|\n| **NFL Point Spreads** | 4.5% | -110\u002F-110 | High liquidity, sharp market |\n| **NBA Moneylines** | 5-6% | -105\u002F-115 | High volume, competitive |\n| **Soccer 1X2** | 6-8% | 2.80\u002F3.20\u002F2.50 | Three outcomes, less efficient |\n| **Tennis** | 3-5% | 1.85\u002F2.10 | Two outcomes, sharp bettors |\n| **Horse Racing** | 15-20% | 10.0\u002F15.0\u002F8.0 | Many outcomes, recreational |\n| **Esports** | 5-10% | 1.80\u002F2.20 | Growing market, variable |\n| **Parlays** | 10-20%+ | Compounds! | Vig multiplies with each leg |\n| **Live Betting** | 8-15% | Varies | Real-time pricing, less efficient |\n| **Prop Bets** | 10-25% | 1.70\u002F2.30 | Low limits, recreational focus |\n\n### Why Vig Varies\n\n**Lower vig markets:**\n- High betting volume (NFL, NBA)\n- Sharp bettor participation\n- Competitive bookmaker landscape\n- Main markets (moneyline, spread)\n\n**Higher vig markets:**\n- Low liquidity (niche sports)\n- Recreational bettor focus\n- Many possible outcomes\n- Exotic bets (props, parlays)\n\n---\n\n## How Vig Destroys Your ROI\n\nEven a \"small\" vig has massive long-term impact.\n\n### Example: 1000 Bets at -110 Odds\n\n**Scenario:** You're a skilled bettor with **55% win rate** (excellent!)\n\n**At fair odds (no vig):**\n- 550 wins × $100 profit = $55,000\n- 450 losses × $100 loss = -$45,000\n- **Net profit: $10,000**\n- **ROI: +10%**\n\n**At -110 odds (4.5% vig):**\n- 550 wins × $100 profit = $55,000\n- 450 losses × $110 loss = -$49,500\n- **Net profit: $5,500**\n- **ROI: +5%**\n\n**The vig cut your profit in HALF** - from $10,000 to $5,500.\n\n### The Breakeven Trap\n\nWithout vig, you need 50% win rate to break even. With standard -110 vig:\n\n$$Breakeven = 52.38\\%$$\n\n**What this means:**\n- 51% win rate at -110 = **LOSING MONEY**\n- 52% win rate at -110 = **LOSING MONEY**\n- 53% win rate at -110 = **Barely profitable** (0.6% ROI)\n\nYou need to be **4.8% better than a coin flip** just to break even. That's hard.\n\n---\n\n## Vig in Parlays: The Silent Killer\n\nParlays are vig death traps because **vig compounds** with each leg.\n\n### Two-Leg Parlay Example\n\n**Individual bets:**\n- Game 1: -110 (4.5% vig)\n- Game 2: -110 (4.5% vig)\n\n**Combined parlay:**\n- Fair odds: 4.00 (two 50-50 events)\n- Actual odds: ~3.64\n- **Total vig: ~9.5%** (not 4.5%!)\n\nThe vig doubles! Every added leg multiplies the bookmaker's edge.\n\n**5-leg parlay at -110 per leg:**\n- Individual vig: 4.5% per leg\n- **Combined vig: ~20-25%**\n\nThis is why parlays feel exciting but rarely win long-term. The vig compounds exponentially.\n\n---\n\n## Beating the Vig: Strategies\n\nYou **cannot eliminate vig** (it's built into odds), but you can minimize its impact:\n\n### 1. Line Shopping\n\n**Compare odds across 5+ bookmakers.** [Line shopping](\u002Fen\u002Fglossary\u002Fbetting\u002Fline-shopping) is essential for minimizing vig impact.\n\n**Example:** NFL Chiefs -3\n- Bookmaker A: -110\n- Bookmaker B: -108\n- Bookmaker C: -105\n- **Savings: 5¢ = ~2% better ROI**\n\nOver 1000 bets at $100, that 2% = **$2,000 extra profit**.\n\nUse the [Odds Converter](\u002Fbetting\u002Fodds-converter) to quickly compare.\n\n### 2. Avoid High-Vig Markets\n\n**Stick to low-vig markets:**\n✅ NFL\u002FNBA spreads (4-5% vig)\n✅ Major tennis matches (3-5% vig)\n✅ Soccer main markets (6-8% vig)\n\n**Avoid high-vig traps:**\n❌ Horse racing (15-20% vig)\n❌ Parlays (10-25% vig)\n❌ Prop bets (10-25% vig)\n❌ Live betting (8-15% vig)\n\n### 3. Use Betting Exchanges\n\n**Exchanges vs. Bookmakers:**\n\n| Type | Model | Typical Vig |\n|------|-------|-------------|\n| **Bookmaker** | Sets odds | 4-10% vig |\n| **Exchange** | Peer-to-peer | 2-5% commission |\n\nExchanges (Betfair, etc.) charge **2% commission** on net winnings vs. 5-10% bookmaker vig. That's 50-80% less cost.\n\n**Downside:** Lower limits for winning players, less liquidity in niche markets.\n\n### 4. Focus on Value, Not Wins\n\n**The vig rule:** You must find bets where true probability **significantly exceeds** implied probability.\n\n**Example:**\n- Bookmaker odds: 2.00 (50% implied probability with vig removed = ~48% true implied)\n- Your calculated true probability: 55%\n- **Edge: 55% - 48% = 7%** (worth betting!)\n\nUse the [Value Bet Calculator](\u002Fbetting\u002Fvalue-bet-calculator) to identify +EV opportunities.\n\n### 5. Arbitrage (Risk-Free)\n\n**[Arbitrage](\u002Fen\u002Fglossary\u002Fbetting\u002Farbitrage)** exploits vig differences across bookmakers to guarantee profit.\n\n**Example:**\n- Bookmaker A: Team A at 2.10\n- Bookmaker B: Team B at 2.10\n- Combined implied: 47.6% + 47.6% = **95.2%** (under 100%!)\n\nBet both sides, profit regardless of outcome.\n\nUse the [Arbitrage Calculator](\u002Fbetting\u002Farbitrage-calculator) to find opportunities.\n\n---\n\n## Vig vs. Margin vs. House Edge\n\nThese terms are often used interchangeably, but have subtle differences:\n\n| Term | Context | Definition |\n|------|---------|------------|\n| **Vigorish (Vig)** | Sports betting | Bookmaker's commission built into odds |\n| **Juice** | American sports betting | Same as vig (slang) |\n| **Margin** | European betting | Bookmaker's profit margin (same as vig) |\n| **Overround** | Horse racing | Total implied probability > 100% |\n| **[House Edge](\u002Fen\u002Fglossary\u002Fcasino\u002Fhouse-edge)** | Casino gambling | Casino's mathematical advantage |\n\n**They all mean the same thing:** The built-in cost that ensures the house profits long-term.\n\n**Use the [Margin Calculator](\u002Fbetting\u002Fmargin-calculator)** to calculate vig\u002Fmargin for any set of odds.\n\n---\n\n## Related Concepts\n\n- **[Margin](\u002Fbetting\u002Fmargin):** Another name for vig, common in European betting. Margin and vig are identical concepts.\n\n- **[Implied Probability](\u002Fbetting\u002Fimplied-probability):** The probability suggested by odds. Vig inflates implied probabilities above true probabilities.\n\n- **[Expected Value (EV)](\u002Fen\u002Fglossary\u002Fbetting\u002Fexpected-value):** Vig reduces EV of every bet. A break-even bet at fair odds becomes negative EV with vig.\n\n- **[Value Betting](\u002Fbetting\u002Fvalue-betting):** To beat the vig, you must find odds where true probability > implied probability by enough to overcome vig.\n\n- **[Odds](\u002Fbetting\u002Fodds):** Vig is built into all odds. Use [Odds Converter](\u002Fbetting\u002Fodds-converter) to compare different formats.\n\n---\n\n## Practical Tools\n\n### Calculators for Vig Analysis\n\n1. **[Margin Calculator](\u002Fbetting\u002Fmargin-calculator)** - Calculate exact vig from any set of odds\n2. **[Odds Converter](\u002Fbetting\u002Fodds-converter)** - Compare odds across formats and remove vig\n3. **[Implied Probability](\u002Fbetting\u002Fimplied-probability)** - See true vs. implied probability\n4. **[Value Bet Calculator](\u002Fbetting\u002Fvalue-bet-calculator)** - Find bets with edge > vig\n5. **[Arbitrage Calculator](\u002Fbetting\u002Farbitrage-calculator)** - Exploit vig differences for guaranteed profit\n\n---\n\n## Key Takeaways\n\n- ✅ **Vig is inevitable** - Every bet includes bookmaker commission (3-25% depending on market)\n- ✅ **Breakeven increases** - At -110 odds, you need 52.4% win rate (not 50%) to break even\n- ✅ **ROI gets cut** - Vig can reduce your profit by 50%+ compared to fair odds\n- ✅ **Parlays compound vig** - Multi-leg parlays have 10-25% total vig\n- ✅ **Line shop always** - Finding better odds = free money\n- ✅ **Focus on low-vig markets** - NFL spreads (4.5%) better than props (25%)\n\n**Remember:** The vig is a tax on every bet. Minimize it through line shopping, exchanges, and smart market selection. Ignore it at your financial peril.\n\n---\n\n## FAQ\n\n### What's a typical vig percentage?\n\n**It varies by market:**\n- **Best:** Tennis, NFL spreads (3-5% vig)\n- **Average:** Soccer, NBA (5-8% vig)\n- **Worst:** Horse racing, parlays, props (15-25% vig)\n\n**Rule of thumb:** If odds are -110\u002F-110, vig is ~4.5%. If you see -115\u002F-115 or worse, vig is 6%+.\n\nUse the [Margin Calculator](\u002Fbetting\u002Fmargin-calculator) to check exact vig for any odds.\n\n### How does vig affect my breakeven win rate?\n\n**Formula:**\n$$Breakeven = \\frac{Risk}{Risk + Win}$$\n\n**Examples:**\n- **-110 odds:** 110\u002F(110+100) = 52.4% breakeven\n- **-120 odds:** 120\u002F(120+100) = 54.5% breakeven\n- **+100 odds:** 100\u002F(100+100) = 50% breakeven (fair odds)\n\nThe higher the vig, the higher your required win rate.\n\n### Is vig the same as house edge?\n\n**Similar concept, different contexts:**\n- **Vig:** Sports betting term for bookmaker's margin\n- **House Edge:** Casino term for mathematical advantage\n\n**Both mean:** The built-in cost that ensures the house profits.\n\n**Key difference:** Casino house edge is fixed (e.g., roulette is always 2.7%). Betting vig varies by market (3-25%).\n\n### Can I avoid vig completely?\n\n**No, but you can minimize it:**\n\n1. **Use betting exchanges** - 2% commission vs. 5-10% bookmaker vig\n2. **Line shop** - Save 1-3% by finding best odds\n3. **Stick to low-vig markets** - NFL spreads (4.5%) vs. parlays (20%)\n4. **Arbitrage** - Exploit vig differences for guaranteed profit\n\n**Reality:** Even professionals pay 2-5% vig. The key is finding +EV bets where edge > vig.\n\n### Why is parlay vig so high?\n\n**Vig compounds** with each leg.\n\n**Example:** 3-leg parlay at -110 per leg\n- Leg 1 vig: 4.5%\n- Leg 2 vig: 4.5%\n- Leg 3 vig: 4.5%\n- **Total vig: ~13-15%** (not 4.5%!)\n\n**The math:** Each leg's vig multiplies. Two -110 bets individually have 4.5% vig each, but combined parlay has ~9% vig.\n\n**Avoid parlays** unless you enjoy recreational betting. The vig makes them -EV long-term.\n\n### How do I calculate vig from American odds?\n\n**For two-outcome markets (spread, moneyline):**\n\n1. Convert both sides to decimal:\n   - -110 → 1.909\n   - -110 → 1.909\n\n2. Calculate implied probabilities:\n   - 1\u002F1.909 = 52.4%\n   - 1\u002F1.909 = 52.4%\n\n3. Add them:\n   - 52.4% + 52.4% = 104.8%\n\n4. Vig = Total - 100%:\n   - **Vig = 4.8%**\n\n**Shortcut:** If both sides are -110, vig is always ~4.5%.\n\nUse the [Margin Calculator](\u002Fbetting\u002Fmargin-calculator) to do this instantly.\n\n---\n\n**Final Word:** Understanding vig is the foundation of profitable betting. Every successful bettor knows: it's not about winning bets, it's about finding bets where your edge exceeds the vig. Master this, and you're ahead of 95% of recreational bettors.",null,[],[33,34,35,36,37,38],"en","ru","es","pt","tr","de",[40,45,51,54],{"slug":41,"section":7,"category":42,"difficulty":9,"term":43,"definition":44},"decimal-odds","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":46,"section":7,"category":47,"difficulty":48,"term":49,"definition":50},"expected-value","strategies","intermediate","Expected Value (EV)","The average profit or loss you can expect from a bet over the long run, calculated by multiplying each outcome's value by its probability — the single most important number that separates winning bettors from everyone else.",{"slug":52,"section":7,"category":8,"difficulty":9,"term":18,"definition":53},"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":55,"section":7,"category":42,"difficulty":48,"term":17,"definition":56},"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%. A typical margin of 5% means the bookmaker expects to keep $5 of every $100 wagered over time.",{"data":58,"body":59},{},{"type":60,"children":61},"root",[62,71,439,765,776,790,796,933,943,947,953,1057,1064,1072,1112,1120,1143,1161,1167,1179,1346,1818,1828,1831,1837,1841,1847,2431,2441,2454,3039,3047,3068,3073,3079,3091,3099,3104,3122,3130,3143,3155,3158,3164,3168,3434,3440,3448,3471,3479,3502,3505,3511,3516,3522,3539,3547,3797,3805,4047,4144,4150,4155,4306,4314,4348,4360,4363,4369,4381,4387,4395,4408,4416,4439,4444,4452,4468,4473,4476,4482,4494,4500,4518,4527,4553,4658,4670,4676,4686,4696,4702,4710,4778,4790,4800,4806,4823,4830,4853,4864,4870,4884,4891,4916,4921,4932,4935,4941,4946,5076,5086,5100,5103,5109,5189,5192,5198,5204,5268,5271,5277,5347,5357,5360,5366,5372,5380,5413,5423,5433,5439,5784,5792,5825,5830,5836,5844,5867,5877,5887,5893,5901,5942,5952,5958,5967,5976,6003,6012,6022,6028,6036,6102,6112,6122,6125],{"type":63,"tag":64,"props":65,"children":67},"element","h2",{"id":66},"what-is-vigorish",[68],{"type":69,"value":70},"text","What is Vigorish?",{"type":63,"tag":72,"props":73,"children":74},"p",{},[75,77,186,188,270,272,437],{"type":69,"value":76},"You bet ",{"type":63,"tag":78,"props":79,"children":82},"span",{"className":80},[81],"katex",[83,140],{"type":63,"tag":78,"props":84,"children":87},{"className":85},[86],"katex-mathml",[88],{"type":63,"tag":89,"props":90,"children":92},"math",{"xmlns":91},"http:\u002F\u002Fwww.w3.org\u002F1998\u002FMath\u002FMathML",[93],{"type":63,"tag":94,"props":95,"children":96},"semantics",{},[97,133],{"type":63,"tag":98,"props":99,"children":100},"mrow",{},[101,107,113,118,123,128],{"type":63,"tag":102,"props":103,"children":104},"mn",{},[105],{"type":69,"value":106},"110",{"type":63,"tag":108,"props":109,"children":110},"mi",{},[111],{"type":69,"value":112},"t",{"type":63,"tag":108,"props":114,"children":115},{},[116],{"type":69,"value":117},"o",{"type":63,"tag":108,"props":119,"children":120},{},[121],{"type":69,"value":122},"w",{"type":63,"tag":108,"props":124,"children":125},{},[126],{"type":69,"value":127},"i",{"type":63,"tag":108,"props":129,"children":130},{},[131],{"type":69,"value":132},"n",{"type":63,"tag":134,"props":135,"children":137},"annotation",{"encoding":136},"application\u002Fx-tex",[138],{"type":69,"value":139},"110 to win ",{"type":63,"tag":78,"props":141,"children":145},{"className":142,"ariaHidden":144},[143],"katex-html","true",[146],{"type":63,"tag":78,"props":147,"children":150},{"className":148},[149],"base",[151,157,163,169,174,180],{"type":63,"tag":78,"props":152,"children":156},{"className":153,"style":155},[154],"strut","height:0.6595em;",[],{"type":63,"tag":78,"props":158,"children":161},{"className":159},[160],"mord",[162],{"type":69,"value":106},{"type":63,"tag":78,"props":164,"children":167},{"className":165},[160,166],"mathnormal",[168],{"type":69,"value":112},{"type":63,"tag":78,"props":170,"children":172},{"className":171},[160,166],[173],{"type":69,"value":117},{"type":63,"tag":78,"props":175,"children":178},{"className":176,"style":177},[160,166],"margin-right:0.0269em;",[179],{"type":69,"value":122},{"type":63,"tag":78,"props":181,"children":183},{"className":182},[160,166],[184],{"type":69,"value":185},"in",{"type":69,"value":187},"100 on the Chiefs. 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