Surebets: The Ultimate Guide to Arbitrage Betting

Introduction: Is There Really Such a Thing as Risk-Free Sports Betting?

Many people view sports betting as a form of gambling. But there’s a special approach that goes far beyond luck and gut feeling – namely the so-called arbitrage bet, also known as a surebet. This is a strategy that lets you bet on every possible outcome of a sports event – with a guaranteed profit.

This method isn’t based on tips or insider knowledge, but on pure mathematics and market observation. Surebets arise when two or more bookmakers offer different odds for one and the same match, creating a mathematically guaranteed opportunity to profit.

In this comprehensive guide, you’ll learn what surebets really are, how they work, how to calculate your stakes correctly, which tools you need, and what risks and opportunities this strategy brings. By the end of this article, you’ll know exactly how to get started with arbitrage betting yourself – realistically, legally, and with a plan.

What Exactly Is a Surebet?

The term “surebet” combines the English words “sure” and “bet.” It refers to a betting situation in which – with the right stake distribution – you are guaranteed to make a profit no matter what happens. This fundamentally distinguishes surebets from classic sports betting, where you bet on one outcome and risk a total loss.

A typical example is a tennis match with two possible outcomes: player A wins or player B wins. If bookmaker A offers odds of 2.10 on player A and bookmaker B offers odds of 2.05 on player B, smart stake distribution creates a situation where you always get back more than you staked.

What Causes These Odds Differences?

• Different risk assessments: Bookmakers assess probabilities differently.
• Market movement: Large bets on one side shift odds in the short term.
• Delayed updates: Some bookmakers adjust odds more slowly.
• Own limits & target audiences: Some providers focus on certain sports or regions.

How Does a Surebet Actually Work?

A surebet only works when the odds are distributed so that the sum of the reciprocals (1/odds) is less than 1. This formula is the basis of every arbitrage bet.

Example:

• Odds on player A: 2.10 → 1 / 2.10 = 0.4762
• Odds on player B: 2.05 → 1 / 2.05 = 0.4878

0.4762 + 0.4878 = 0.964 < 1 → Surebet exists!

Profit Calculation:

Total stake: €200

Distributing stakes proportionally to the odds weighting:

• Stake on player A = (0.4762 / 0.964) * 200 ≈ €98.8
• Stake on player B = (0.4878 / 0.964) * 200 ≈ €101.2

Payout either way: approx. €207 → Net profit: €7

What Is an “Arbitrage Margin”?

The arbitrage margin describes the theoretical profit margin of a surebet – in other words, how many percent profit you make with correct stake distribution. The smaller the sum of the reciprocals, the larger this margin.

Example Calculation with Margin:

Sum of reciprocals: 0.964 → Arbitrage margin = (1 – 0.964) * 100 = 3.6%

This means: You can achieve a 3.6% profit – guaranteed, provided everything is placed correctly.

3-Way Surebets: Football as a Special Case

In sports like football, there are three possible match outcomes: home win, draw, away win. Here, a surebet is a bit more complex, since you have to bet on three different outcomes, ideally at three different bookmakers.

Example odds (realistic, at three different bookmakers):

• Bookmaker A: Home win @ 3.10
• Bookmaker B: Draw @ 3.05
• Bookmaker C: Away win @ 3.15

Calculation: 1 / 3.10 + 1 / 3.05 + 1 / 3.15 = 0.323 + 0.328 + 0.317 = 0.968 → Surebet exists, margin approx. 3.2%.

Odds this close together are much more realistic in 3-way markets than large differences of several tenths of a point – real 3-way surebets usually arise exactly this way: minimal deviations between several bookmakers, not a single extreme outlier. Profit margins on 3-way bets tend to run lower than on 2-way bets – but they show up more often.

When Do These 3-Way Surebets Occur?

• Often in international leagues with high betting frequency
• Around kickoff, when odds jump
• When one bookmaker backs an underdog while others stay more conservative

Tools for Finding Surebets

Finding surebets used to be a tedious, manual process. Today, specialized tools do this for you – with live scans across hundreds of bookmakers. These software solutions show you not only the available arbitrage bets, but also the optimal stake distribution.

1. RebelBetting

• Standout feature: Beginner-friendly, clean interface
• Features: Live surebets, pre-match, ROI calculation, alert function
• Price: currently from around €70/month, professional packages significantly more (pricing changes frequently, check the provider’s website)
• Advantage: Easy to understand, good community
• Disadvantage: No app, mainly designed for desktop

2. BetBurger

• Standout feature: Very detailed, suitable for professionals
• Features: Filter by odds, margin, sport, bookmaker
• Price: currently from around €80/month (pre-match only), live betting packages significantly more expensive (pricing changes frequently, check the provider’s website)
• Advantage: Precise hits, even for smaller bookmakers
• Disadvantage: Cluttered interface, steep learning curve

3. OddsPortal

• Standout feature: Manual comparison possible
• Features: Bookmaker comparison, odds history
• Price: free
• Advantage: Ideal for learning and following along
• Disadvantage: No automatic detection

4. SureBet.com (Free)

• Standout feature: Usable for free with limited access
• Feature: List of current surebets, manual entry required
• Price: basic version free, premium plans paid (check current prices on the provider’s website)

Pro tip: Combine tools. For example, use BetBurger to find surebets & RebelBetting for an overview & stake calculation.

Bankroll Management: The Underrated Key

Your bankroll determines your scalability. The typical profit margin per surebet is 0.5–3%. That means: the more you stake, the more you can earn. Sounds simple – but is demanding in practice.

Example Scenario:

• Average margin: 2.2%
• Average stake: €500 per surebet
• Number of surebets per day: 10 (total stake thus 10 × €500 = €5,000)
• Daily profit: €5,000 × 2.2% = €110
• Monthly profit: €3,300 (with daily use)

Important Rules:

• Spread your bankroll across at least 5–10 bookmakers
• Keep sufficient balance in each account for spontaneous bets
• Use e-wallets like Skrill/Neteller for fast transfers
• Never put your entire bankroll into one surebet combination

Sample Bankroll Distribution Plan (Example with €5,000):

Bookmaker	Starting Capital	Target Odds (min)
Bookmaker A	€800	2.00
Bookmaker B	€700	2.00
Bookmaker C	€900	1.90
Bookmaker D	€1,200	3.00
Reserve	€1,400	–

How Bookmakers Detect (and Lock Out) Arbitrage Bettors

Although surebets are legal, bookmakers don’t like them. Many providers deliberately use tools to identify arbitrage bettors.

Typical Red Flags for Bookmakers:

• Always betting at the maximum odds
• Barely any betting history, but high stakes
• Betting behavior that deviates from the average customer
• Unusually many single bets, no combination bets

How Bookmakers React:

• Maximum stake is lowered (often to just a few euros)
• Account is suspended without warning
• Winnings are reviewed & potentially voided
• ⚠️ Bets placed on “mispriced odds” are reversed

How to Stay Under the Radar

• Don’t always bet at the maximum odds
• Occasionally place combination bets as well
• Delay your bets a little – don’t bet every 10 seconds
• Spread your activity across several bookmakers & devices
• Use browsers with separate sessions (e.g. Firefox & Chrome)

Risks of Surebetting

Even though the strategy is based on “certainty,” there are real risks:

• Odds change after the first bet is placed: The surebet is gone
• Technical error at bookmaker A: The bet isn’t accepted
• Bet gets cancelled: e.g. due to an “obvious pricing error”
• Deposit limits / withdrawal delays: Money gets stuck
• Sudden account suspension on just one leg of the surebet

Tip: Start with small amounts and first get to know how your preferred bookmakers behave. Only scale up after that!

Advanced Strategies for Arbitrage Betting

1. Combining Surebets and Value Bets

Once you’re familiar with surebets, it’s worth also using so-called value bets. These are bets with a positive expected value that can make you profitable over time – even though they’re not individually guaranteed to win. Surebets deliver stable, small profits – value bets occasionally bring bigger payoffs.

Many experienced sports bettors combine both strategies to pair safety-oriented income with growth potential. It’s important, however, to keep the two disciplined and separate, and never bring risk into a surebet.

2. Surebet Automation via API

Professionals rely on automated tools that communicate directly with betting accounts via APIs. Some surebet scanners (e.g. RebelBetting Pro) offer these interfaces. With them, you can place bets without manual clicking – which saves reaction time and allows for more surebets per day.

Note: Automation requires programming knowledge or third-party plugins. Make sure this is compatible with your bookmakers’ terms and conditions.

3. Spreading Capital Across Multiple Identities – Mind the Risk

Some professionals use several devices, IP addresses, or even “friends” to run new accounts at bookmakers where they’ve been banned. This can work – but: in many cases, this violates the terms and conditions and can lead to the complete closure of the account. If you want to be successful long-term, transparency is the more sustainable strategy.

Legal & Tax Aspects in Germany (and Internationally)

1. Is Arbitrage Betting Legal?

In Germany and most EU countries, arbitrage betting is legal, provided you bet with licensed bookmakers. There are no laws that prohibit arbitrage. However: many bookmakers dislike arbitrage and exclude it in their terms and conditions.

2. What Happens to My Winnings for Tax Purposes?

• Private individuals: Winnings from sports betting in Germany are tax-free if they are not carried out commercially.
• Commercial activity: If you bet systematically, regularly and with the intent to profit (e.g. full-time), the tax office may classify it as a commercial activity.
• Recommendation: Keep a log of your activities. If in doubt → ask a tax advisor!

3. Betting Tax in Germany

• 5% tax on the stake or winnings, depending on the bookmaker
• No bookmaker actually absorbs the tax themselves – some visibly deduct it from the stake, others only from the winnings, and others still build it invisibly into lower odds. Either way, the customer always ends up paying it.
• Important: The tax reduces your surebet margin → always factor it in!

Checklist: How to Get Started with Surebets

1. ✅ Set aside at least €1,000–2,000 in starting capital
2. ✅ Open accounts with 5–10 reputable bookmakers
3. ✅ Subscribe to a professional surebet scanner (RebelBetting or BetBurger)
4. ✅ Practice your calculation system for stake distribution
5. ✅ Prepare browser tabs & devices for fast placement
6. ✅ Document your bankroll distribution
7. ✅ Read up on taxes & bookmaker terms

Glossary: The Key Terms Explained

• Surebet: A bet where, through stake distribution across all outcomes, you’re guaranteed to win.
• Arbitrage: Exploiting price differences across different markets – here: odds
• Odds: The factor by which your stake is multiplied (e.g. 2.10)
• Betting tax: 5% statutory levy on sports betting in Germany
• Value bet: A bet with a positive expected value, even if not guaranteed to win
• API: A programming interface that allows automated bet placement

Conclusion: Is Surebetting Worth the Effort?

Yes – if you go about it in a structured and disciplined way.

Surebets are not magic and not a risk-free path to riches either. But they are a proven strategy that lets you achieve real, repeatable profits through smart stake distribution and odds differences.

With a good tool, clean stake planning, tidy bankroll management, and the willingness to invest time and patience, arbitrage betting is still a realistic way today to make sports betting profitable – without relying on luck.

Your next step: Choose 2–3 bookmakers, try out your first surebets with small amounts, and then scale your strategy systematically. The world of arbitrage betting is technical – but worthwhile.