9-Way Arbitrage Calculator. Surebet
9-Way Arbitrage: A Complex Strategy for Maximizing Betting Profits
What is 9-Way Arbitrage?
9-Way Arbitrage is an advanced form of arbitrage betting where a bettor places wagers on all nine possible outcomes of a betting market, ensuring a profit regardless of which outcome occurs. This strategy is typically used in markets with nine potential results, such as specific sports events, niche markets, or highly complex betting scenarios.
How Does 9-Way Arbitrage Work?
The concept behind 9-Way Arbitrage is similar to other arbitrage strategies: by placing calculated bets on all outcomes of an event, a bettor ensures that their total stake is less than the total return.
To calculate the arbitrage opportunity, the formula is:
(1 / Odds 1) + (1 / Odds 2) + (1 / Odds 3) + … + (1 / Odds 9) < 1
If the sum of the inverses of the odds for all nine outcomes is less than 1, an arbitrage opportunity exists. This guarantees a profit no matter which outcome happens.
Example Calculation
Let’s consider an event with nine possible outcomes. The odds for each outcome are as follows:
- Outcome 1 → 2.50
- Outcome 2 → 3.00
- Outcome 3 → 3.50
- Outcome 4 → 4.00
- Outcome 5 → 4.50
- Outcome 6 → 5.00
- Outcome 7 → 5.50
- Outcome 8 → 6.00
- Outcome 9 → 6.50
Step 1: Check for Arbitrage
(1 / 2.50) + (1 / 3.00) + (1 / 3.50) + (1 / 4.00) + (1 / 4.50) + (1 / 5.00) + (1 / 5.50) + (1 / 6.00) + (1 / 6.50) = 0.980 → Arbitrage opportunity exists.
Step 2: Calculate Stakes (for a $100 total bet)
- Outcome 1: $40.00
- Outcome 2: $33.33
- Outcome 3: $28.57
- Outcome 4: $25.00
- Outcome 5: $22.22
- Outcome 6: $20.00
- Outcome 7: $18.18
- Outcome 8: $16.67
- Outcome 9: $15.38
Step 3: Calculate Profit
- No matter which outcome occurs, the bettor will receive a return of approximately $102-$104, yielding a $2-$4 profit.
Pros & Risks
✅ Pros:
- Guarantees a profit by covering all nine outcomes.
- Provides a way to take advantage of pricing inefficiencies across multiple bookmakers.
- Higher potential returns compared to simpler arbitrage strategies.
⚠️ Risks:
- Requires substantial capital to place bets on all nine outcomes.
- Odds can change quickly, making it difficult to lock in the arbitrage opportunity.
- Frequent arbitrage betting can lead to account restrictions or limits by bookmakers.