Best Tools and Software for Arbing Sharp vs. Soft Books
Arbitrage betting, or “arbing,” is the practice of placing bets on all possible outcomes of a sporting event across
Arbitrage betting, or “arbing,” is the practice of placing bets on all possible outcomes of a sporting event across different sportsbooks to guarantee a profit—thanks to pricing discrepancies. While it’s not a get-rich-quick scheme (margins are usually slim), it’s a proven method for disciplined bettors who are willing to hunt value and move fast.
In the U.S. market, the presence of both regulated sportsbooks and offshore sharp books creates the perfect storm for finding arbitrage opportunities. This guide outlines the best tools and software to help you identify and act on those opportunities effectively—without getting banned or slowed down.
Why Arbitrage Works in the U.S.
- Dozens of regulated books across states (DraftKings, FanDuel, BetMGM, etc.)
- Offshore books with sharper lines (Pinnacle, Circa, BetOnline, Bet105)
- State-by-state pricing differences due to local action and exposure
- Slower line movement at soft books creates windows of opportunity
Bettors in legal states can compare odds at their local books versus offshore platforms and find arbitrage plays across everything from moneylines and totals to props and live betting.
Top Arbitrage Tools for U.S. Bettors
1. RebelBetting
Best for: Automated and manual arbing
Platform: Web + Desktop
RebelBetting is one of the most well-known arbitrage tools, providing:
- Real-time arbitrage alerts across hundreds of sportsbooks
- Smart filters (sports, ROI %, markets, book list)
- ROI projections per arb
- Integration with offshore books like BetOnline and Pinnacle
✅ Excellent for beginners and pros
🚫 Monthly subscription starts around $89—an investment only worthwhile if you’re active
2. OddsJam
Best for: U.S.-focused arbing, value betting, and EV tracking
Platform: Web
OddsJam scans both regulated and offshore books to find:
- Arbitrage opportunities across major leagues (NFL, NBA, MLB, NCAAF)
- Mispriced markets between FanDuel, DraftKings, BetRivers vs. BetOnline, Pinnacle, etc.
- Positive EV bets and middling opportunities
Unique to OddsJam is its integration of U.S.-regulated sportsbooks at the state level. That means you’ll find local arbs that only exist for bettors in, say, Colorado or New Jersey.
✅ Excellent U.S. coverage
🚫 Doesn’t support all offshore books (some need to be added manually)
3. Betslayer
Best for: Beginners wanting plug-and-play arbitrage
Platform: Web + Mobile
Betslayer focuses on simple, clean arbitrage alerts with:
- Mobile push notifications
- Auto-refreshing arb lists
- Profit calculators with stake sizing
- U.S. and international sportsbook support
While it lacks some of the customization and EV betting tools of OddsJam or RebelBetting, it’s a solid starter tool.
✅ Fast setup, mobile-friendly
🚫 May miss more advanced opportunities
4. BreakingOdds.com (Free Tool)
Best for: Casual bettors and manual arbers
Platform: Web
This free odds comparison site is one of the few that still includes offshore sportsbooks alongside U.S. regulated ones. It’s great for:
- Spotting manual arbitrage across moneylines
- Comparing spreads and totals
- Live betting and line movement
✅ No cost to use
🚫 No alerts or automation—fully manual
Key Offshores to Pair with Arbing Tools
To capitalize on sharp vs. soft line differences, you need at least one offshore account. Here’s a quick look at popular options:
| Sportsbook | Highlights |
|---|---|
| Pinnacle | Sharpest lines in the industry, ideal for anchoring arbs |
| Circa Sports | Similar sharp model, available in NV, CO, and now more states |
| BetOnline | Strong liquidity, crypto-friendly, good alternative to Pinnacle |
| BetAnySports | Offers reduced juice (-105), ideal for small arbs |
| Cloudbet | Crypto-first, privacy focused, solid odds |
| Bet105 | Reduced juice, no KYC, sharp pricing—ideal for serious arbers |
⚠️ Pro Tip: Avoid arbing between two sharp books. You’ll find fewer edges and may get limited faster. Focus instead on sharp vs. soft pairs like:
- Bet105 vs. FanDuel
- Pinnacle vs. BetMGM
- Circa vs. Caesars
Practical Tips for Arbing Without Getting Limited
Don’t Always Bet Max
Betting the exact max allowed repeatedly is a red flag. Keep your bet sizes random and natural-looking.
Round Your Stakes
Instead of betting $82.33, round to $80 or $85. You want to blend in, not stand out.
Bet Different Markets
Mix up your betting: totals, spreads, moneylines, even props. Avoid repetitive patterns.
Use Multiple Devices
If your soft book tracks device IDs or browser fingerprints, consider using different devices or profiles.
Conclusion: Software + Strategy = Edge
Arbitrage betting isn’t glamorous, and the margins aren’t huge—but it’s one of the few mathematically guaranteed strategies in sports betting. When you pair the right software (OddsJam, RebelBetting, etc.) with access to sharp books like Bet105 or Pinnacle, you can exploit inefficiencies that others miss.
The U.S. market—with its fragmented pricing across legal states and offshore competition—is a goldmine for savvy bettors who know how to spot and execute these plays efficiently. Just remember: discipline and stealth are just as important as the tools themselves.
