🎓 Lesson 6: Arbitrage

🎯 Objectives

By the end of this lesson, you’ll be able to:

• Understand what arbitrage is
• Learn when and how to use it

🧭 Introduction

                 You’ve already learned that the best bets are those where the odds are in your favor that is, positive expected value bets. You also learned that bookmakers set their lines independently. This independence creates opportunities where two bookmakers may have different views on the same market.

When that happens, you can sometimes place bets on both sides of a market and, if you size them correctly, make money no matter which outcome wins.

This strategy is called Arbitrage ⚖️

📘 What Is an Arbitrage Bet?

                 An arbitrage bet (also called an “arb” or “sure bet”) is when you bet on all possible outcomes of an event using different bookmakers offering different odds.

When done correctly, whichever outcome occurs, you lock in a guaranteed profit.

🧮 Example: Tennis Arbitrage Bet

Let’s look at an arbitrage opportunity between two bookmakers Pinnacle and SportyBet shown on 🔗 OddsFantasy Arbitrage Tool.

The Event: Jeanjean, Leolia vs Hon, Priscilla
Market: Money Line

There’s something special about this market. With a $500 bankroll, you can size your bets so that, regardless of who wins, you make a profit of about $10.

📏 Calculating Stakes (Step-by-Step)

We’ll use the 🔗 OddsFantasy Arbitrage Calculator 🔢

Total staked: $268 + $232 = $500
Guaranteed payout: ≈ $510 ✅

💵 Result

No matter who wins:

• Jeanjean, Leolia wins → Payout = $511.61
• Hon, Priscilla wins → Payout = $510.40

Guaranteed profit ≈ $10, risk-free

🤔 Why Arbitrage Works

                 Arbitrage exploits differences in bookmakers’ odds. Because each bookmaker manages its risk and exposure independently, sharp discrepancies often appear, especially in:

• Niche markets
• Slow-moving lines
• Live betting situations

By sizing your stakes correctly, you lock in profit before odds adjust.

💡 Pro Tips

• Act fast — good arbs vanish quickly.
• Use multiple bookmaker accounts to increase opportunities.
• Arbitrage builds steady bankroll growth over time.
• It removes variance (noise) — unlike positive EV betting.
• Always use an arb calculator for proper stake sizing.

More arbitrage bets can be seen on the 🔗 OddsFantasy Arbitrage tool.

🔁 Recap

Let’s summarize:

• Arbitrage (Sure Betting) = betting both sides across different bookmakers to lock in profit
• It works because bookmakers have independent odds
• Proper stake sizing (with an arb calculator) is essential
• Great for steady, low-risk growth

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