About OddsAnchor
OddsAnchor gives you the knowledge, tools, and coaching to understand sports betting arbitrage and execute it with confidence.
Sports Betting Arbitrage
Sports betting arbitrage is a strategy where you place bets on both sides of a game across different sportsbooks, guaranteeing a profit regardless of the result. It works because sportsbooks price odds independently, and those differences create windows where the combined payouts across books exceed your total stake.
Example: Eagles vs. Cowboys. You bet $1,200 on Eagles ML at -140 on DraftKings, and $808 on Cowboys at +155 on Pinnacle. No matter who wins, you profit around $50.
Live Arbitrage (In-Game)
Live arbitrage is arbitrage betting done while a game is in progress. Unlike pre-game markets, odds shift constantly as events unfold, creating pricing gaps across books in real time.
- More frequent inefficiencies: Books don't always adjust at the same speed mid-game, creating more pricing gaps than you'd typically see pre-game.
- Potentially higher edges: Rapid line movement means the gaps that do appear are often larger, translating to stronger profit margins.
- Account longevity benefits: Betting into high-volume live markets looks far less suspicious than consistently targeting pre-game arbs.
- Increased difficulty: Windows are short and lines move fast, so execution needs to be quick and precise.
This is what makes up the bulk of profit in our coaching program. Visit our coaching service to learn more.
How OddsAnchor Works
OddsAnchor brings together everything you need in one place. Use the odds page to compare lines across books, our calculators to size your bets and analyze returns, and our articles and coaching to build and refine your strategy.
Tools & Features
- MLB Odds Dashboard to compare prices across sportsbooks.
- Arbitrage Calculator to size your bets and calculate guaranteed profit.
- Free/Bonus Bet Calculator to convert promos into cash efficiently.
- Expected Value Calculator to quantify long-term profitability.
- Odds Converter to switch between American, Decimal, Fractional, and implied probability.
- Parlay Calculator to calculate combined odds and payouts across multiple legs.
- No-Vig Calculator to strip the sportsbook margin and find the true fair odds.
- Vig Calculator to measure the margin built into any set of odds.
- Prediction Market Converter to translate prediction market prices into standard betting odds.
- Articles covering strategy, concepts, and guides for sports bettors.
- 1-on-1 Coaching for a structured approach to profitable sports betting.
Glossary of Betting Terms
| Term | Meaning |
|---|---|
| Arbitrage (Arb) | Offsetting bets at different books to lock in profit from price discrepancies. |
| Live Arbitrage (In-Game) | Arbitrage performed while the game is in progress, leveraging rapid price changes. |
| Hedge | A bet taken to reduce or eliminate risk on an existing position. |
| Middle | Holding both sides at different numbers to win both if the result lands in the “middle.” |
| Closing Line Value (CLV) | Difference between your bet’s odds and the market’s closing odds; a key signal of edge. |
| Expected Value (EV) | Average profit/loss per bet over time based on true probability and price. Try our EV Calculator. |
| Implied Probability | A percentage representation of how likely a sportsbook's odds suggest an outcome is to occur. Convert with our Odds Converter. |
| Juice / Vig | The sportsbook’s commission embedded in the odds. Measure it with our Vig Calculator or strip it with the No-Vig Calculator. |
| Hold | The book’s theoretical margin on a market, derived from all sides’ implied probabilities. |
| Moneyline | Bet on which team wins outright. |
| Run Line / Spread | Handicap applied to the final score (e.g., −1.5 / +1.5 in MLB). |
| Totals (Over/Under) | Bet on combined runs versus a posted number. |
| Prop (Proposition) Bet | Wager on a specific outcome (e.g., player hits, strikeouts). |
| Unit | Standardized bet size for tracking (e.g., 1 unit = 1% of bankroll). |
| Bankroll | Total funds set aside for wagering. |
| Exposure | Total amount at risk across open bets. |
| Limit (Bet Limit) | Maximum stake a sportsbook will accept. |
| Slippage | Getting a worse price than intended due to movement or execution delay. |
| Stale Line | An outdated price that hasn’t adjusted to new information yet. |
| Odds Boost / Price Boost | Promotional enhancement that increases the payout on a selection. |
| Bonus Bet / Free Bet | Promotional stake where the bet amount isn’t returned on a win; see our Free/Bonus Bet Calculator. |
| Rollover / Wagering Requirement | Amount that must be wagered before bonus funds can be withdrawn. |
| Push | A tie; stake typically returned. |
| Cash Out | Book’s offer to settle your bet early at an adjusted price. |
| Prediction Markets | Platforms where users bet on the probability of real-world events, with prices reflecting the crowd’s implied odds. See our article or use the Prediction Market Converter. |
(e.g., −1.5 / +1.5 in MLB).
(e.g., player hits, strikeouts).
(e.g., 1 unit = 1% of bankroll).
See our Free/Bonus Bet Calculator.
Frequently Asked Questions
How do I get started?
Start by familiarizing yourself with the fundamentals on this page, then use our calculators to practice sizing bets before putting real money down. When you're ready to execute, you'll need accounts on multiple sportsbooks to compare lines and place bets on both sides. For a structured approach with a proven system, check out our coaching program.
Is sports betting arbitrage legal?
Yes. You’re simply taking advantage of differences in sportsbook pricing.
Do I need accounts on multiple sportsbooks?
Yes. Arbitrage depends on comparing odds across different books.
How much can I make?
Returns depend on strategy, bankroll, limits, timing, and available sports. With our live arbitrage coaching program, a high volume of wagers, and a moderate-sized starting bankroll, you can target 5–10k/month profit. Those with larger bankrolls and more time commitment can exceed 20k+/month profit.
Client-reported results. No guarantee of profit. Past performance does not predict future results.
Can sportsbooks limit or ban arbitrage bettors?
They can limit the wager size of accounts they suspect of consistently profiting. Sticking to large markets (e.g., major sports leagues and moneyline/spread/totals) and using live arbitrage instead of pre-game can help reduce attention.
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