Matched betting is a method that lets you turn bookmaker promotions and free bets into real profit with little to no risk. You can make money by placing two opposite bets that cover all possible outcomes of a sports match, which guarantees a profit regardless of who wins. This isn't gambling in the traditional sense because you're not relying on luck.
Most people who try matched betting can make their first profit within a few hours of starting. The strategy works because bookmakers offer free bets and bonuses to attract new customers. You use these promotional offers along with betting exchanges to create situations where you win money no matter what happens in the game.
This guide will walk you through everything you need to know about matched betting. You'll learn the basic terms, see real examples of how bets work, and discover the tools that make the process easier. By the end, you'll understand how to start making tax-free profits from bookmaker offers.
Key Takeaways
- Matched betting uses bookmaker free bets and promotions to guarantee profit by covering all outcomes of an event
- You need to understand basic betting terms, odds, and how to use betting exchanges alongside traditional bookmakers
- The right tools and strategies help you find profitable offers and manage your bets for long-term success
What Is Matched Betting?
Matched betting is a method that uses bookmaker promotions to make guaranteed profits by placing opposing bets on all possible outcomes of a sports event. This approach removes the gambling element from sports betting by using mathematical calculations to ensure you profit regardless of which team wins or loses.
Key Principles of Matched Betting
The core principle involves placing two opposite bets on the same event. You place a back bet at a bookmaker (betting for an outcome to happen) and a lay bet at a betting exchange (betting against that same outcome).
When you cover all possible outcomes, you eliminate risk. Your back bet and lay bet work together so that one always wins enough to offset the other's loss.
The two-phase process works like this:
- Qualifying bet - You place matched bets to unlock a free bet offer (results in a small loss of €/$0.50-€/$2.00)
- Free bet - You use the free bet with matched bets to extract €/$20-€/$50 in profit
The math guarantees your profit. You're not predicting outcomes or relying on luck. Instead, you're using bookmaker promotions as your profit source while betting exchanges let you cover the opposite outcome.
Most free bets are "Stake Not Returned" (SNR), meaning you only receive the winnings, not the stake back. This affects your calculations but still ensures profit.
Benefits Compared to Traditional Betting
Traditional sports betting means you risk losing your money on incorrect predictions. Matched betting removes this risk completely.
| Traditional Betting | Matched Betting |
|---|---|
| Win or lose based on results | Guaranteed profit every time |
| Gambling with risk of loss | Mathematical strategy with no risk |
| Taxable in some regions | Tax-free in the UK |
| Relies on luck or skill | Relies on calculations |
You keep your bankroll safe because you're covering all outcomes. Your initial deposit doesn't disappear through losses. It simply moves between your bookmaker and exchange accounts as you complete offers.
Is matched betting legal? Yes, matched betting is completely legal in the UK and most countries. You're simply using bookmaker promotions as intended and placing standard bets. Bookmakers may limit your accounts if they notice the pattern, but this isn't illegal.
The profits are consistent and predictable. You can reasonably expect €/$500-€/$1,000 in your first month from welcome offers alone.
Common Myths and Misconceptions
"It's too good to be true" - Many people think guaranteed profit sounds like a scam. Matched betting works because bookmakers spend millions on promotions to attract customers. You're extracting value from their marketing budgets through math.
"You need to be good at betting" - You don't need any sports knowledge or betting experience. The strategy works regardless of which team is better. You're not making predictions.
"It's gambling" - Matched betting is not gambling because there's no risk when done correctly. You're not hoping for a particular outcome. Both outcomes are covered and both result in profit.
"Bookmakers will ban you immediately" - While bookmakers can restrict accounts over time, most people complete 20-30 welcome offers before facing any limitations. Even then, reload offers from your remaining accounts continue generating profit.
"You need thousands to start" - You can start with €/$500, though €/$1,000-€/$2,000 gives you more flexibility. This money isn't at risk. It's working capital that cycles through your accounts.
How Matched Betting Works
Matched betting uses a specific two-step process where you place opposing bets to guarantee profit regardless of the outcome. You'll use both traditional bookmakers and betting exchanges to create risk-free bets that turn promotional offers into cash.
The Two-Part Betting Process
The matched betting process requires two separate bets on the same event. First, you place a qualifying bet at a bookmaker to unlock their promotional offer. This bet uses your own money and helps you meet the requirements for receiving a free bet or bonus.
Second, you place another bet using your earned free bet. You cover all possible outcomes in both steps by betting on opposite results. This means you'll either break even or make a small loss on the qualifying bet, then extract profit when using your free bet.
The process repeats for each bookmaker promotion you complete. You can work through multiple offers from different bookmakers to build your profits over time.
Opposing Bets: Back and Lay Explained
A back bet is a standard bet you place at a bookmaker. You're betting that something will happen, like a specific team winning a match. When you win a back bet, you receive your stake plus your winnings.
A lay bet works in the opposite way. You place this at a betting exchange, where you bet that something won't happen. If you lay a team to win, you're covering both the draw and the opposing team winning.
| Bet Type | Where to Place | What You're Betting |
|---|---|---|
| Back Bet | Bookmaker | Outcome will happen |
| Lay Bet | Betting Exchange | Outcome won't happen |
You need both bet types to create matched bets. The back bet at the bookmaker and the lay bet at the exchange cancel each other out, leaving you with minimal risk.
Overview of Free Bets and Qualifying Bets
A qualifying bet is your first bet placed to meet a bookmaker's promotion requirements. You must follow specific conditions like minimum odds (often 2.00 or higher) and minimum stake amounts. This bet typically results in a small loss of a few cents or dollars because the odds won't match perfectly between the bookmaker and exchange.
Free bets are the promotional rewards you receive after completing your qualifying bet. These have no cash value until you convert them through matched betting. When you use a free bet, you don't get your stake back, only the winnings.
You can typically extract 75-80% of a free bet's value as profit. A €/$10 free bet converts to roughly €/$7.50-€/$8 in your pocket. The conversion happens by placing your free bet at a bookmaker and your lay bet at an exchange, just like you did with your qualifying bet.
Foundational Terms and Concepts
Matched betting relies on placing opposing bets to guarantee profit from bookmaker promotions. You need to understand how back and lay bets work together, why small qualifying losses lead to larger guaranteed profits, and how odds and stake amounts determine your returns.
Understanding Back Bets
A back bet is a standard bet you place with a bookmaker on an outcome to happen. When you back a team to win, you're betting that specific result will occur. If your selection wins, the bookmaker pays you based on the odds you took.
Back bets use your own money when qualifying for promotions. You place them at bookmakers who offer odds in decimal format, which shows your total return including your stake. For example, backing at odds of 3.0 with a €/$10 stake returns €/$30 if you win (€/$20 profit plus your €/$10 stake back).
Every matched betting strategy starts with a back bet. You'll place these at traditional bookmakers to trigger free bet offers or meet promotion requirements.
Understanding Lay Bets
A lay bet is the opposite of a back bet. You place it on a betting exchange, betting against an outcome. When you lay a team to win, you're saying they will not win (they'll either lose or draw).
Lay bets require you to have liability in your exchange account. This liability is what you pay out if the outcome you laid against actually happens. The lay odds determine your liability amount.
For example, laying at odds of 3.0 with a €/$10 stake means your liability is €/$20. If the team you laid wins, you lose €/$20. If they don't win, you keep the €/$10 stake from the person who bet against you. Exchanges like Betfair and Smarkets let you place lay bets.
Qualifying Loss and Guaranteed Profit
A qualifying loss is the small amount you lose when placing your first bet to unlock a free bet offer. This loss happens because back and lay odds never match exactly. The difference between these odds creates a tiny loss, usually 2-5% of your stake.
You accept this small loss because it gives you access to a free bet worth much more. If you lose €/$2 to qualify for a €/$20 free bet, you'll make around €/$16 profit overall.
Guaranteed profit comes when you use the free bet. Free bets are typically stake not returned, meaning you only get the winnings, not your stake back. By backing with your free bet and laying the same outcome on an exchange, you lock in profit regardless of which bet wins. The profit amount depends on the odds you find.
The Role of Odds and Stake
Odds determine how much you win or lose on each bet. Decimal odds show your total return per €/$1 staked. Higher odds mean bigger potential returns but also higher liability when laying.
Your stake is the amount you bet on an outcome. The stake on your back bet and the stake on your lay bet need to be calculated precisely to balance your positions. A matched betting calculator tells you exactly how much to lay based on your back odds, lay odds, and stake amount.
Close odds between bookmaker and exchange reduce your qualifying loss. The tighter the odds match, the less you lose on qualifying bets. For free bets, higher odds increase your guaranteed profit because you extract more value from the stake not returned nature of the promotion.
Matched Betting Step-by-Step Example
A matched betting example shows how you use both back and lay bets to extract profit from bookmaker promotions. The process involves placing a qualifying bet to unlock a free bet, then using that free bet to guarantee profit through careful stake calculations.
Placing the Qualifying Bet
Your first step is placing a qualifying bet to unlock the bookmaker's free bet offer. Let's say a bookmaker offers a €/$20 free bet when you bet €/$20 of your own money.
You need to find a close odds match using a matched betting calculator. Search for an event where the back odds at the bookmaker and lay odds at the exchange are similar. For example, you find a football match where Team A has back odds of 2.5 at the bookmaker and lay odds of 2.52 at the betting exchange.
You place €/$20 on Team A to win at the bookmaker. Then you lay the same outcome at the exchange for €/$20.16 (calculated using your matched betting calculator). Your liability will be around €/$30.64.
This qualifying bet will result in a small loss of about 40p regardless of the outcome. This is called your qualifying loss. You accept this small cost because it unlocks the €/$20 free bet.
Unlocking and Using Free Bets
Once your qualifying bet settles, the bookmaker credits your account with the free bet. You now need to convert this free bet into real cash through free bet conversion.
Find a match with higher odds this time. Higher odds give you better free bet conversion rates. Look for back odds around 4.0 to 6.0 for optimal profit.
Let's say you find a match where Team B has back odds of 5.0 at the bookmaker and lay odds of 5.1 at the exchange. You place your €/$20 free bet on Team B.
Switch your matched betting calculator to "free bet" or "SNR" (stake not returned) mode. This is important because you don't get your stake back with free bets, only the winnings. The calculator shows you need a lay stake of €/$19.80 with a liability of approximately €/$81.18.
Balancing Outcomes and Calculating Profit
Understanding both possible outcomes helps you see how matched betting profit works. Your matched betting calculator shows you the profit for each scenario before you place any bets.
If Team B wins:
- Bookmaker profit: €/$80 (5.0 odds x €/$20, minus the stake which isn't returned)
- Exchange loss: €/$81.18 (your liability)
- Net result: -€/$1.18 before commission
If Team B doesn't win:
- Bookmaker loss: €/$0 (you only lose the free bet, not real money)
- Exchange profit: €/$18.81 (your lay stake minus 5% commission)
- Net result: €/$18.81
After commission, you guarantee around €/$16-€/$18 profit from this €/$20 free bet. This represents an 80-90% free bet conversion rate. Your total matched betting profit from this complete offer is around €/$16-€/$18, minus the 40p qualifying loss, giving you about €/$15.60-€/$17.60 overall.
You can repeat this process across different bookmakers. Most people work through 40-50 different sign-up offers to build their initial profits.
Betting Exchanges and Bookmakers
Matched betting requires accounts with both traditional bookmakers and betting exchanges. Bookmakers offer the promotions you'll use, while exchanges let you cover all outcomes to lock in profit.
What Is a Betting Exchange?
A betting exchange is a platform where you bet against other people instead of against a bookmaker. You can either back an outcome (bet for it to happen) or lay an outcome (bet against it happening). The lay bet is what makes matched betting work.
When you lay a bet, you act as the bookmaker. If someone bets that Manchester United will win, you can lay that bet, meaning you win if Manchester United loses or draws. This ability to bet against outcomes lets you cover both sides of a bet.
Betfair is the largest betting exchange, with the most users and best odds. Smarkets is another popular option with lower commission rates. Both platforms charge a small commission on your winnings, typically 2-5%.
Opening Accounts and Setting Up
You need to open accounts with multiple bookmakers and at least one betting exchange. Start with one exchange account at Betfair or Smarkets, then add bookmaker accounts based on available promotions.
Most betting sites require basic verification. You'll need to provide your name, address, date of birth, and payment details. Keep your information consistent across all accounts.
Use different payment methods for exchanges and bookmakers when possible. This helps keep your accounts organized and makes tracking profits easier. Set up e-wallets like PayPal or Skrill for faster withdrawals.
- You must be 18 or older
- One account per person per site
- Accurate personal information
- Valid payment method
Bookmaker Promotions Overview
Bookmakers offer free bets and bonuses to attract new customers and keep existing ones active. These promotions are the foundation of matched betting profits. A typical welcome offer gives you a free bet worth €/$10-€/$50 after you place your first real money bet.
- Matched free bets (bet €/$10, get €/$10 free)
- Risk-free bets (refund if you lose)
- Deposit bonuses (extra betting credits)
- Reload offers (for existing customers)
Each sportsbook has different terms and conditions. Some free bets return your stake plus winnings, while others only return winnings. Read the terms carefully before starting any offer to calculate your expected profit correctly.
Odds, Stake, and Liability Explained
Understanding how odds, stakes, and liability work together is essential for matched betting success. These three elements determine how much you risk and how much you can win on both your back and lay bets.
How Odds Affect Profit and Loss
Odds directly control your potential profit on back bets and your liability on lay bets. Higher back bet odds mean more profit when you win. For example, a €/$10 back bet at odds of 3.0 returns €/$30 total, giving you €/$20 profit.
Lay bet odds work differently. They determine how much you must pay if the outcome happens. At lay odds of 3.0 with a €/$10 stake, you keep the €/$10 if you win. But if you lose, you pay out €/$20 in liability.
The gap between your back and lay odds affects your profit. Smaller gaps mean less loss on the qualifying bet. Larger gaps reduce your guaranteed return when using free bets.
Minimum odds matter for bonus terms. Many bookmakers require you to place bets at odds of 1.8 or 2.0 to qualify for promotions. Always check these requirements before placing your bets.
Calculating Stake and Liability
Stake is the amount you place on a bet. For back bets, your stake is your maximum loss. For lay bets, you need to calculate liability separately. The liability formula is simple: Liability = Stake x (Lay Odds - 1).
If you lay €/$15 at odds of 2.5, your liability is €/$15 x (2.5 - 1) = €/$22.50. This is what you pay if the lay bet loses. Your betting exchange will lock this amount in your account when you place the bet.
You need enough money in your exchange account to cover your liability. If you have €/$100 available, you can't place a lay bet that requires €/$120 liability.
Exchange Commission and Effective Profits
Betting exchanges charge commission on winning lay bets. Most exchanges charge 2% to 5% on your profit, not your full return.
Exchange commission reduces your effective profit. If you win €/$10 on a lay bet with 2% commission, you keep €/$9.80. The exchange takes €/$0.20.
Commission doesn't apply to losing lay bets. You only pay it when your lay bet wins. This affects your calculations when you're working out guaranteed profits from matched betting.
Include commission in all your calculations before placing bets. A matched betting calculator automatically factors in commission rates to show your true profit for both outcomes.
Choosing and Maximizing Offers
Selecting the right bookmaker promotions determines how much profit you extract from matched betting. Welcome bonuses provide your largest initial gains, while reload offers sustain long-term earnings.
Welcome Offers and Bonuses
Welcome bonuses deliver the biggest payouts when you start matched betting. Most bookmakers offer "bet €/$10 get €/$40" or similar deposit bonuses to attract new customers. These promotions typically require you to place a qualifying bet before receiving your free bet tokens.
Register with multiple bookmakers to access different welcome offers. Each account qualifies for one sign-up promotion, so spreading across 10-15 sites generates substantial initial profits. Focus on offers with lower qualifying bet requirements and higher bonus amounts.
- Minimum deposit required (typically €/$5-€/$20)
- Qualifying bet amount and minimum odds
- Value of free bet tokens received
- Expiration timeframe for using bonuses
New customer offers range from €/$20 to €/$100 in free bets. Track which bookmakers you've joined to avoid missing valuable opportunities. Start with the largest welcome bonuses first to build your bankroll quickly.
Reload Offers and Promotions
Reload promotions keep your matched betting profits flowing after exhausting welcome bonuses. Bookmakers send these to existing customers through email, app notifications, or account dashboards. You'll find deposit match offers, risk-free bets, and enhanced odds throughout the year.
Major sporting events trigger the best reload offers. Football seasons, horse racing festivals, and tennis tournaments generate frequent promotions. Check your accounts daily to catch time-sensitive deals before they expire.
Target bookmakers with strong loyalty programs that reward regular activity. Some sites offer weekly free bets based on your betting volume. Others provide birthday bonuses or monthly reload promotions automatically.
Terms and Conditions to Watch
Terms and conditions determine whether an offer delivers actual profit. Read the fine print before committing to any promotion. Wagering requirements specify how many times you must bet your bonus before withdrawing profits.
- Maximum stake limits on free bets
- Eligible markets and sports for promotions
- Minimum odds requirements (often 1.50 or higher)
- Expiration dates for bonus funds
- Withdrawal restrictions on bonus winnings
Some bookmakers exclude certain bet types from promotions. Others require you to bet your deposit multiple times before accessing withdrawals. Avoid offers with rollover requirements exceeding 3x your deposit amount. Watch for geo-restrictions that limit where you can place qualifying bets.
Essential Tools and Software
Success in matched betting depends on three types of tools that work together: calculators to determine exact stake amounts, software to find close odds matches across bookmakers, and systems to track your opportunities. Each tool serves a specific purpose in converting bonuses into guaranteed profits.
Matched Betting Calculators
A matched betting calculator handles the math that makes matched betting work. You input the back odds at a bookmaker, the lay odds at an exchange, and your stake. The calculator then tells you exactly how much to bet on each side to guarantee a profit or minimize loss.
Different calculators exist for different bet types. Standard calculators work for qualifying bets where you're using your own money. Free bet calculators account for the fact that you don't get your stake back with bonus bets. Some calculators also handle special scenarios like odds boosts or profit multipliers.
- Qualifying bet calculator
- Free bet (SNR) calculator
- Each-way calculator
- Dutching calculator
- Extra place calculator
You can find standalone calculators online, but most matched betting software includes built-in calculators. The advantage of integrated calculators is they can pull odds data automatically from the odds matching software rather than requiring manual input.
Odds Matching Software
Odds matching software scans bookmakers and exchanges to find events where the back and lay odds are close enough to place profitable matched bets. Without this software, you would need to manually compare odds across dozens of sites.
The software shows you a list of matches, typically sorted by how close the odds are. A "rating" or percentage tells you how good each match is. A 100% rating means perfect odds, while 95% means you'll lose a small amount on the qualifying bet.
Speed matters for odds matching. Some platforms update every 1-2 seconds, while others refresh every 30 seconds or slower. Faster updates help you catch good matches before odds change, but most matched betting doesn't require the fastest speeds since you're focused on bonuses rather than quick arbitrage opportunities.
| Platform | Best For | Refresh Speed |
|---|---|---|
| OddsMonkey | UK/Ireland | Not disclosed |
| ProfitDuel | USA/UK | Not disclosed |
| OddsJam | USA/Canada | 8 seconds |
| Pick The Odds | International | 1.6 seconds |
Tracking Matched Betting Opportunities
Tracking tools help you manage which bookmakers you've used, which offers you've completed, and how much profit you've made. This prevents you from missing valuable bonuses or accidentally trying to claim an offer twice.
Basic tracking can be done with a spreadsheet. You record each bookmaker, the offer details, completion date, and profit. More advanced matched betting platforms include built-in trackers that automatically log your bets and calculate running totals.
The best tracking systems also alert you to reload offers. After completing signup bonuses at all available bookmakers, reload offers become your main source of matched betting profit. Good software monitors bookmaker promotions and notifies you when new opportunities appear.
Matched Betting Strategies and Long-Term Success
Success in matched betting requires more than understanding the basic concept. You need a solid approach to managing multiple accounts, protecting your bankroll, and keeping your accounts active for as long as possible.
Profiting from Multiple Bookmakers
Your earning potential grows with the number of bookmaker accounts you operate. Most active matched bettors maintain 40 to 100 accounts across different platforms to access the widest range of offers.
Start by opening accounts with the major bookmakers offering the best welcome bonuses. Once you complete these initial offers, focus on reload promotions and free bet clubs that provide ongoing value.
- Sign up for bookmakers with the highest value welcome offers first
- Create accounts with betting exchanges like Smarkets or Betfair Exchange
- Use matched betting services like OddsMonkey to find the best daily offers
- Track which bookmakers you have accounts with and which offers you have claimed
Different matched betting strategies work for different offer types. Free bets and risk-free bets form the foundation of your approach. Price boosts and acca insurance offers provide additional profit opportunities once you gain experience.
Keep detailed records of your bets across all platforms. Note the stake amount, odds, bet type, and profit or loss for each transaction.
Managing Bankroll and Accounts
Your bankroll determines which offers you can safely pursue. Never risk more than 5% of your total matched betting funds on any single offer.
Split your bankroll between bookmaker accounts and your exchange account. Keep at least 30% to 40% of your total funds in your exchange account to cover lay bets.
- Start with at least €/$200 to €/$500 to access most offers comfortably
- Avoid high-risk casino offers until you build up reserves
- Never withdraw all your profits at once from bookmakers
- Maintain consistent betting patterns with regular small deposits
Store your login details securely using a password manager. Update your spreadsheet or tracking system after every bet you place. This organization prevents costly mistakes like laying the wrong team or forgetting about pending bets.
Avoiding Gubbing and Account Protection
Gubbing happens when bookmakers restrict or close your account because they identify you as a matched bettor. This limits your access to promotions and reduces your earning potential.
Bookmakers flag accounts that only bet on promotions and immediately withdraw winnings. Your betting behavior matters more than the matched betting strategy you use.
- Place occasional bets outside of promotions at normal odds
- Bet on popular markets like weekend football matches
- Use round stake amounts (€/$10, €/$20, €/$50) instead of odd amounts (€/$9.73)
- Let winnings sit in your account for a few days before withdrawing
- Avoid betting only when promotions are active
Avoid mug bets despite what some matched betting services recommend. Placing extra bets to look normal often costs more than it protects. Bookmakers track multiple factors beyond betting patterns.
Focus your time on bookmakers that still offer you promotions rather than trying to save accounts already showing restriction signs. When you get gubbed at one bookmaker, move on to others still providing value.
Advanced Matched Betting Tactics
Advanced matched betting tactics build on basic strategies to create consistent profits after initial sign-up bonuses run out. These methods include dutching multiple selections, capitalizing on price boosts, and identifying hidden value in promotional offers that less experienced bettors miss.
Dutching and Arbitrage Betting
Dutching involves placing bets on multiple outcomes in the same event to guarantee a profit regardless of which outcome wins. You calculate specific stakes for each selection so your returns exceed your total investment. This differs from standard matched betting because you back multiple selections instead of backing and laying a single outcome.
Arbitrage betting works by exploiting odds differences between bookmakers on the same event. You place bets on all possible outcomes across different platforms when their combined probability is less than 100%. For example, if one bookmaker offers 2.1 on Team A and another offers 2.1 on Team B, you can bet both sides for a guaranteed return.
The profit margins on arbitrage opportunities are typically small, ranging from 1-5% per bet. You need a substantial bankroll to make meaningful returns. Bookmakers actively restrict accounts that consistently take arbitrage positions, so these opportunities work best when combined with normal betting patterns.
Price Boosts and Enhanced Offers
Price boosts offer inflated odds on specific selections, creating immediate value when the enhanced price exceeds the true probability. Bookmakers use these promotions to attract customers, but they often misprice the boost or fail to account for market movements. You should compare the boosted odds against exchange lay prices to calculate your exact profit.
Enhanced accumulators present the highest value opportunities. Bookmakers boost multi-leg bets to attractive prices that you can exploit through partial laying or dutching strategies. A boosted treble at 10.0 might have fair odds of 7.0, giving you significant mathematical advantage.
Most price boosts have maximum stake limits of €/$10-€/$50. You maximize returns by hitting every qualified boost across multiple bookmakers daily. Track which accounts still offer you these promotions, as restricted accounts lose access first to enhanced odds before other features.
Exploiting Matched Betting Opportunities
Reload bonuses provide ongoing profit after sign-up offers expire. These include weekly free bets, loyalty rewards, and event-specific promotions that you qualify for through regular account activity. You extract 70-80% of the free bet value through standard back-and-lay techniques.
Extra place offers in horse racing pay out on additional finishing positions, creating scenarios where you can win both your back and lay bets. When a bookmaker pays four places instead of three, backing each-way and laying the win component on exchanges generates profit if your selection finishes exactly fourth.
Loss refunds and insurance offers remove downside risk from specific bet types. You place qualified bets knowing the bookmaker will refund losses as free bets or cash. These refunds typically convert to €/$15-€/$25 profit per offer through matched betting techniques, and many bookmakers run these promotions weekly across different sports.