What is Arbitrage Betting?
Arbitrage betting (also called “arbing” or “sure bets”) is a strategy where you bet on all possible outcomes of a sporting event across different sportsbooks to guarantee a profit regardless of the result. It works because different sportsbooks sometimes disagree on the odds for the same event.
Here’s the simple version: when one sportsbook has the favorite at better odds than another sportsbook has the underdog, you can bet both sides and pocket the difference. It’s not gambling in the traditional sense—it’s math.
Example: Book A has Team X at +150. Book B has Team Y at +150. If you bet $100 on each, you’ll get $250 back from the winner (your $100 stake plus $150 profit), spending $200 total. That’s a guaranteed $50 profit no matter who wins.
Sports betting is regulated at the state level. For information about legal sports betting in your state, visit your state’s gaming commission website or the American Gaming Association’s state gaming map.
Sound too good to be true? It’s real—but it’s not easy. Let’s break down exactly how to find and execute arbitrage bets in 2026.
Why Arbitrage Opportunities Exist
You might wonder: why would sportsbooks let this happen? A few reasons:
- Different customer bases: Some books shade lines based on their customers’ betting patterns
- Timing differences: News (injuries, lineup changes) hits books at different speeds
- Market inefficiencies: With 30+ legal US sportsbooks, someone’s always off
- Promotional pricing: Boosted odds and promos create artificial arb opportunities
The catch? These opportunities are fleeting. Most arbs last minutes, not hours. You need the right tools and accounts set up before you start hunting.
What You Need to Get Started
Multiple Sportsbook Accounts
The more books you have, the more arbs you’ll find. At minimum, you’ll want accounts at:
- Sharp books: Pinnacle, Circa, Bookmaker (these set the “real” lines)
- Retail books: DraftKings, FanDuel, BetMGM, Caesars (often have softer lines)
- Regional books: Barstool, PointsBet, BetRivers, SuperBook
Realistically, you want 8-12 funded accounts to find consistent opportunities. Each book should have enough bankroll to place meaningful bets quickly.
Arbitrage Betting Software
Manually comparing odds across 12 sportsbooks is theoretically possible but practically insane. You need software. The three major options in 2026:
AVO (Arbs vs Odds) — Built specifically for arbitrage betting. Clean interface, fast alerts, US-focused. Great for beginners and serious arbers alike. Offers a free tier to test it out.
OddsJam — The industry standard. Comprehensive coverage, +EV and arbitrage tools combined, excellent education. More expensive but feature-rich. Check out our full OddsJam review.
Outlier — Newer player focused on +EV betting, but includes arb features. Lower price point, solid for those starting out. See our Outlier review for details.
For a head-to-head comparison, read our OddsJam vs AVO vs Outlier breakdown.
How to Find Arbitrage Bets: Step-by-Step
Step 1: Set Up Your Tools
Choose an arb finder (AVO, OddsJam, or Outlier) and configure it with the sportsbooks you have accounts at. Most tools let you filter by:
- Minimum arb percentage (start at 1%+)
- Sports you want to bet
- Books you have funded
Step 2: Fund Your Accounts
This is where most people underestimate. You need sufficient bankroll at each book to capitalize on opportunities. If an arb requires $500 on each side and you only have $100 at one book, you can’t execute it.
General guideline: $500-1000 minimum per book for casual arbing, $2000+ per book for serious arbing.
Step 3: Act Fast
When your tool alerts you to an arb:
- Verify the odds are still live at both books (they move fast)
- Calculate your bet sizes using the arb calculator (most tools have this built in)
- Place the bets simultaneously—open both books in separate tabs
- Confirm both bets went through at the expected odds
Speed matters. The best arbs disappear in seconds. Have your accounts logged in and ready to bet. Don’t overthink—if the math works, execute.
Step 4: Track Everything
Keep a spreadsheet or use your tool’s tracking features to log:
- Date and event
- Books used
- Stakes and odds
- Expected vs actual profit
- Any issues (odds changed, bet limited, etc.)
This data helps you identify which books are most profitable and which are limiting you fastest.
Realistic Profit Expectations
Let’s kill the fantasy: you’re not going to quit your job from arbitrage betting. Here’s what’s actually realistic:
- Arb margins: Typically 1-5% per bet (higher arbs are rare and get taken fast)
- Monthly ROI: 5-15% on deployed bankroll if you’re active daily
- Time investment: 1-4 hours daily to catch good opportunities
- Account longevity: Expect limits within 2-6 months at most books
With $10,000 across 10 books, expect $500-1500/month in profit—if you’re diligent and don’t get limited too quickly.
The Limiting Problem (And How to Deal With It)
Here’s the uncomfortable truth: sportsbooks don’t want winning bettors. When they identify you as an arber (and they will), they’ll limit your accounts. You might go from betting $500 to being capped at $20 per bet.
Signs you’re about to get limited:
- Bet sizes get restricted on specific markets
- Your maximum bet drops significantly
- Promos stop being offered to you
- Withdrawals get extra scrutiny
Strategies to Extend Account Life
- Bet recreational lines too: Don’t only bet arbs. Sprinkle in some “normal” bets
- Avoid max bets: Betting $497.32 (the exact arb amount) screams “calculator”
- Round your bet sizes: $500 looks more natural than $483.27
- Use promos naturally: Don’t just arb promos—use them as intended sometimes
- Don’t withdraw constantly: Leave money in accounts
Even with these tactics, expect limits eventually. That’s the game.
Arbitrage vs +EV Betting: Which is Better?
Arbitrage guarantees small profits. +EV (positive expected value) betting offers larger potential profits but with variance.
Choose arbitrage if:
- You want guaranteed returns
- You’re risk-averse
- You have significant bankroll across many books
- You can act fast when opportunities appear
Choose +EV betting if:
- You can handle variance (losing days/weeks)
- You want higher long-term ROI
- You’re okay with risk for higher reward
- You have fewer accounts or smaller bankroll
Many serious bettors do both. Arb when opportunities appear, +EV bet the rest of the time. Tools like OddsJam and AVO support both strategies.
Common Arbitrage Betting Mistakes
1. Betting the Wrong Side
In the rush to place bets, it’s easy to bet Team A at both books instead of Team A at one and Team B at the other. Double-check before confirming.
2. Ignoring Bet Limits
Your arb calculator says bet $800, but the book only allows $500 max. Now your arb is unbalanced and you have actual risk.
3. Forgetting About Free Bet Conversions
Some of the best “arbs” aren’t true arbs—they’re bonus bet conversions that guarantee 70-80% value from free bets.
4. Chasing Tiny Margins
A 0.5% arb on a $200 bet makes you $1. After the time spent, that’s not worth it. Set minimum thresholds (1.5%+ is reasonable).
5. Not Having Backup Plans
What happens when one leg of your arb gets voided or odds change mid-bet? Have a plan for these scenarios.
Is Arbitrage Betting Legal?
Yes, arbitrage betting is 100% legal. You’re just placing bets at different sportsbooks—nothing illegal about that.
However, it does violate most sportsbooks’ terms of service. They won’t arrest you, but they will limit or close your account. That’s their right as a private business.
Getting Started: Your First Week
Here’s a realistic first-week plan:
Day 1-2: Sign up for AVO or OddsJam. Explore the interface. Learn how to read arb alerts.
Day 3-4: Fund 4-5 sportsbook accounts with $200-500 each. Focus on books the tool shows frequent arbs on.
Day 5-7: Start small. Execute 2-3 arbs with minimal stakes. Focus on process, not profit. Track everything.
After week one, evaluate: Was it worth your time? Do you enjoy it? Scale up or move on based on your experience.
Tools and Resources
Everything you need to start arbitrage betting:
- AVO — Best for dedicated arbitrage betting
- OddsJam — Most comprehensive all-in-one tool
- Outlier — Budget-friendly option with solid features
- Best Betting Tools Guide — Full comparison of all options
- Bankroll Management Guide — Essential reading before risking real money
Final Thoughts
Arbitrage betting is real, legal, and profitable—for a while. The limiting problem means it’s not a forever strategy, but it can be excellent supplemental income if you have the time, bankroll, and discipline to execute properly.
Start with the right tools, set realistic expectations, and track everything. The math doesn’t lie, but the execution separates winners from people who just read articles about it.
Ready to start? Grab AVO or OddsJam and place your first arb this week.
