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Accumulator Calculator – How Does It Work?
Oddsmart’s Accumulator Calculator optimises your matched-betting strategy by delivering fast, accurate projections for up to ten-leg accumulators, each-way bets, Rule 4 deductions and special promotions.
Simply enter your unit stake (e.g. £10), bet type (single through tenfold), odds format (fractional, decimal or American) and whether it’s each-way or win-only.
Then configure each leg with a selection name, back odds, expected result (Win, Place, Dead Heat, Lost or Void) and, if needed, a Rule 4 deduction percentage.
The calculator automatically converts all odds to decimal, applies dead-heat and Rule 4 adjustments, and computes effective odds per leg. Instantly, you receive your total stake, total return and total profit.
A scenario breakdown table illustrates your exposure at every possible failure point—“Leg 1 loses,” “Leg 2 loses,” … through “All legs win”—so you can optimise lay stakes, minimise risk and plan around free bets or promotional offers.
Bonus features include handling bookmaker incentives like all-winner bonuses, one-loser insurance and one-winner consolations.
Whether you’re qualifying for a free bet, hedging liability or planning your next acca, Oddsmart’s calculator ensures you know your worst-case loss and best-case profit before you stake a penny.
Use our Oddsmart’s free Accumulator Betting Calculator today and take the guesswork out of multi-leg bets.
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- 1 month, 4 weeks ago
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Arbitrage Calculator – How Does It Work?
Oddsmart’s Arbitrage Calculator helps you lock in risk-free profits by automating the maths between back and lay bets. Simply enter your back stake (e.g. £10), back odds (decimal), lay odds and lay-commission rate (e.g. 5%), and the tool instantly calculates:
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Lay Stake – the exact amount you must lay on the exchange
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Profit if Back Wins – your net return when the back bet wins
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Profit if Lay Wins – your net return when the lay bet wins
Because it factors in exchange fees and balances your stakes, you’ll know immediately whether an arb exists (both profit figures positive) or if the opportunity isn’t viable.
How to Use It
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Set Back Stake: Enter your risk amount.
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Enter Back Odds: Input the decimal odds from your bookmaker.
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Enter Lay Odds: Input the decimal lay odds from your exchange.
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Enter Commission: Specify the exchange fee percentage.
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Review Results: View lay stake and profit scenarios to confirm a true arbitrage.
Pro Tips
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Act Fast: Odds change constantly—lock in arbs quickly.
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Check Liquidity: Ensure your lay bets fully match.
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Monitor Multiple Markets: Compare odds across bookmakers for the best gaps.
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Track Your Trades: Record each arb to refine your strategy.
Ready to turn odds discrepancies into guaranteed returns? Try Oddsmart’s Arbitrage Betting Calculator today and seize every risk-free opportunity.
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- 1 month, 4 weeks ago
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Average Odds Calculator – How Does It Work?
Oddsmart’s Average Odds Calculator takes the guesswork out of managing multiple bets.
Our Average Odds Calculator does this by instantly computing your true average price and, if you wish, the exact stakes needed to guarantee the same return on each selection. Ideal for qualifying bets, free-bet campaigns or any multi-bet strategy, it supports up to ten decimal-odds entries and handles all the maths for you.
Why You’ll Love It
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Instant Accuracy: No more manual weighted-average errors.
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Bankroll Clarity: See your Total Stake and true Average Odds at a glance.
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Equal-Return Stakes: Automatically splits your outlay so each winning bet returns the same amount.
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Full Transparency: All formulas are visible and auditable—no hidden macros.
How It Works
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Enter Your Odds & Stakes: Fill in each selection’s decimal odds and your intended stake.
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View Totals: The tool totals your stakes and calculates your weighted-average odds.
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Generate Equal-Return Stakes (Optional): Click “Equal Return” to see the common payout and receive recommended stakes proportioned to 1 ÷ odds.
Practical Example
Four £5 bets at odds 3.00, 4.50, 2.20 and 6.00 give:-
Total Stake: £20
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Average Odds: 3.93
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Equal Return: £7.89
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Recommended Stakes: £2.63, £1.75, £3.59, £1.32
By matching each stake to its odds, every winning bet returns £7.89, meeting qualifying requirements without overspend. Streamline your matched-betting, eliminate errors and maximise promotional value with Oddsmart’s Average Odds Calculator.
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- 1 month, 4 weeks ago
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Bet Chance Calculator – How Does It Work?
Oddsmart’s Bet Chance Calculator turns bookmaker and exchange odds into clear percentage probabilities, so you can spot value and hedge with confidence. Ideal for matched bettors, it supports fractional (e.g. 7/2), decimal (e.g. 4.50) and American (e.g. +350) formats and delivers instant, precise implied probabilities.
Why It Matters
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Clarity: Know exactly what “4/1” means (20%) rather than guessing.
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Value Detection: Compare your own win-rate estimates against the implied probability to find edges.
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Risk Management: Allocate stakes where the gap between your estimate and the implied number justifies the bet.
How to Use
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Select Format: Pick Fractional, Decimal or American odds.
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Enter Odds: Type your odds (e.g. 9/4).
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Calculate: Instant probability appears (e.g. 36.36%).
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Decide: If your estimated chance (say 42%) exceeds 36.36%, you’ve found value—back on the bookmaker, lay on the exchange and lock in profit.
Practical Example
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Odds: 9/4 → Probability = 4 ÷ (9 + 4) × 100 ≈ 36.36%
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Your estimate: 42% → Positive expected value exists.
Top Tips
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Shop Around: Small odds differences add up.
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Log Results: Track implied vs. actual outcomes to refine your estimates.
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Use Alerts: Get notified when favourable odds appear.
With its mobile-ready interface, tooltips and zero-error algorithm, Oddsmart’s Bet Chance Calculator is your go-to for data-driven, low-risk betting. Try it now and turn odds into opportunity!
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- 1 month, 4 weeks ago
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Betting Odds Converter – How Does It Work?
Oddsmart’s free Betting Odds Converter Tool instantly translates between fractional (UK), decimal (EU/AUS) and American (US) odds, calculates the implied probability and projects your potential payout and profit—all in one clean, mobile-ready interface.
Why You Need It
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Effortless Conversions: Switch formats with a click—no manual formulas.
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Instant Probability: See the market’s implied chance (1 ÷ decimal odds × 100).
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Payout & Profit: Enter your stake to view total return (stake × decimal odds) and net winnings.
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Error-Proof: Real-time validation catches invalid inputs before they trip you up.
How It Works
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Select Input Format: Fractional (A/B), Decimal (X.YY) or American (+Z/–Z).
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Enter Odds: Type your odds (e.g. 5/2, 3.50 or +250).
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View Conversions: The other two formats populate instantly.
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Check Probability: The converter shows the implied percentage.
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Add Stake (Optional): See your exact payout and profit at a glance.
Key Benefits
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Time-Saving: Eliminate tedious math and rounding errors.
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Value Detection: Compare implied probability across markets to spot edges.
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Strategic Planning: Model different stakes on the fly.
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Arbitrage Friendly: Identify price gaps between bookmakers and exchanges.
With Oddsmart’s intuitive odds converter, you’ll make faster, more informed betting decisions—whether you’re a casual punter or a serious arb hunter. Try it now and put clarity at the heart of your wagering strategy.
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- 1 month, 4 weeks ago
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Double Bet Calculator – How Does It Work?
Oddsmart’s Double Bet Calculator takes the guesswork out of matched-betting doubles by automating back-and-lay stakes, liabilities and profit scenarios. Whether you’re using cash or free-bet stakes, it ensures every margin is locked in.
Why Use It?
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Error-Free Maths: No more manual miscalculations when multiplying odds or factoring in commission.
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Time-Saving: Get precise stakes and profit figures in seconds.
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Full Transparency: View all formulas and assumptions—decimal, fractional or American odds accepted.
Key Features
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Bet Types: Supports cash bets (stake returned) and bonus bets (stake-not-returned).
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Odds Formats: Enter decimal, fractional or moneyline odds for both legs.
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Commission Handling: Input your exchange’s commission (e.g. 2–5%) for accurate lay stakes.
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Mobile-Ready UI: Calculates on desktop, tablet or smartphone.
How to Use
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Select Bet Type: Cash or bonus.
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Enter Leg 1 & Leg 2 Odds: Decimal/fractional/American.
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Input Stake: Cash amount or free-bet value.
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Set Lay Odds & Commission: For each leg on the exchange.
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Calculate: View bookmaker return, each lay stake, liabilities and guaranteed profit whether the double hits or one leg fails.
By instantly showing your minimum profit in every outcome, Oddsmart’s Double Bet Calculator lets you deploy doubles confidently—maximising promotional value with zero arithmetic risk. Try it now and lock in predictable profits on every paired bet.
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- 1 month, 4 weeks ago
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Dutch Bet Calculator – How Does It Work?
Oddsmart’s Dutch Bet Calculator lets you split a fixed stake across multiple selections so every winner returns the same amount — perfect for multi-runner races or markets where you can’t lay on an exchange.
Why Dutch Betting?
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Guaranteed Outcome: Whatever wins, your return is identical—locking in profit or a controlled loss.
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No Exchange Needed: Ideal when laying isn’t practical or commissions bite too deeply.
Key Features
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Up to 20 Selections: Cover large fields with ease.
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Any Odds Format: Enter decimal (e.g. 4.50), fractional (e.g. 7/2) or American (e.g. +650).
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Commission-Friendly: Factor in exchange or platform fees per selection.
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Rounding Control: Round stakes to £1, 50p, 10p or custom increments.
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Dual Modes: Distribute a total stake evenly or base stakes around a “first selection” amount.
How to Use
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Choose Format & Mode: Select odds notation and whether you’re using Total Stake or First-Selection mode.
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Set Stake & Selections: Enter your target amount and number of runners (2–20).
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Input Odds & Commission: Fill in each selection’s odds and commission rate.
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Review Outputs: See your stake per runner, each return and guaranteed profit.
With real-time recalculation and a mobile-ready interface, Oddsmart’s Dutch Bet Calculator ensures precise, transparent dutching so you can maximise returns without manual maths. Try it today and lock in consistent profits on every multi-way bet!
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- 1 month, 4 weeks ago
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Each Way Calculator – How Does It Work?
Oddsmart’s Each Way Calculator removes the guesswork from every each-way wager by instantly showing your stake, return and profit under any outcome.
Why It Matters
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Win & Place Covered: Splits your unit stake into win and place bets—pays if your pick wins or places.
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Complexity Handled: Applies Rule 4 deductions, models dead-heats and unifies fractional, decimal or American odds.
Key Features
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Multi-Format Input: Enter odds as 7/2, 4.50 or +350—calculator auto-converts to decimal.
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Place Terms: Choose 1/4, 1/5 or custom fractions for place payouts.
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Rule 4 Adjustments: Select pence-in-the-pound rate; the tool reduces odds accordingly.
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Scenario Results: Instantly see Win Return, Place Return, Total Return, Total Stake and Profit.
How to Use
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Unit Stake: Type your per-leg stake (e.g. 5; calculator uses 2× for each-way).
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Odds Format & Value: Pick format, enter odds.
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Place Terms & Rule 4: Select place fraction (e.g. 1/4) and any Rule 4 rate (e.g. 10p).
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Result Dropdown: Choose Won, Placed, Dead Heat, Lost or Void.
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Review Outputs: Check your exact returns and net profit for each scenario.
Practical Example
A £5 each-way at 7/2 with 1/4 terms yields:-
Place Return £11.25, Total Stake £10, Profit £1.25 when placed.
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If it wins, combined return £56.25, Profit £46.25.
With transparent formulas and mobile-ready Excel/LibreOffice support, Oddsmart’s calculator ensures you always know your worst- and best-case outcomes—making every each-way bet a confident, bankable decision.
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- 1 month, 4 weeks ago
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Lucky 15 Calculator – How Does It Work?
Oddsmart’s Lucky 15 Calculator automates the maths behind this 15-bet multiple—so you can cover all singles, doubles, trebles and the four-fold without spreadsheets or errors.
What Is a Lucky 15?
A Lucky 15 places 15 bets on four selections (4 singles, 6 doubles, 4 trebles, 1 accumulator). With a unit stake of £1, win-only costs £15; each-way doubles that to £30.Why Use Oddsmart’s Calculator?
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Full Coverage: Computes all 15 (or 30) bets instantly.
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Odds Flexibility: Enter decimal, fractional or American odds.
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Rule 4 & Dead-Heat Handling: Automatically applies pence-in-the-pound deductions and splits stakes on ties.
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Each-Way Splits & Bonuses: Toggle each-way mode, set place terms (¼, ⅕, etc.), and define bookmaker bonuses (all-winner, one-loser, one-winner).
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Real-Time Totals: See Total Stake, Return and Profit update as you tweak inputs.
How to Use
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Unit Stake & Mode: Choose win-only or each-way and enter per-bet stake.
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Odds & Selections: Input odds for your four picks in any format.
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Adjustments: Select place fraction and any Rule 4 rate.
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Results: The calculator breaks down returns by singles, doubles, trebles, accumulator and applies bonuses, displaying your overall profit or loss.
With Oddsmart’s Lucky 15 Calculator, you’ll know your worst- and best-case outcomes before you bet—maximising matched-betting profits while eliminating manual errors. Try it today and bet smarter!
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- 1 month, 4 weeks ago
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Matched Betting Calculator – How Does It Work?
Oddsmart’s Matched Betting Calculator does the heavy lifting for your back-and-lay bets, turning bookmaker promotions into guaranteed returns with zero guesswork.
How It Works
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Select Bet Type: Qualifying bet, free bet (stake returned) or free bet (stake not returned).
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Enter Your Numbers: Input your back stake, back odds (decimal), lay odds and exchange commission (%).
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Instant Outputs: See exactly how much to lay, your liability if the lay loses, and either your qualifying loss (to unlock the free bet) or your net profit (from free bets).
Why Use It?
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Accuracy: Automated math eliminates manual errors when balancing stakes and accounting for commission.
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Speed: Results update in real time, so you can place bets before odds shift.
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Flexibility: Mobile-friendly interface works on desktop, tablet or smartphone.
Key Benefits
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Optimised Profits: Know your guaranteed outcome—whether a small qualifying loss or a free-bet windfall.
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Simple Layout: Logical grouping of inputs and clear labels guide both beginners and experts.
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Scalable: Handle single bets or dozens of offers each week with ease.
Pro Tips
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Always use decimal odds and include commission to avoid overstating profits.
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Act fast—lock in your back and lay bets simultaneously to capture the arbitrage.
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Track every bet in a simple log to refine your strategy over time.
Start using Oddsmart’s free Matched Betting Calculator today to turn bookmaker offers into consistent, risk-free returns!
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- 1 month, 3 weeks ago
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Rule 4 Betting Calculator – How Does It Work?
Oddsmart’s Rule 4 Betting Calculator adjusts your horse-racing odds whenever a runner is withdrawn, so you always know your true potential return.
What Is a Rule 4 Deduction?
When a non-runner is declared after final declarations, bookmakers apply a pence-in-the-pound reduction to the remaining odds.This compensates for the smaller field and shifts probabilities accordingly.
Why Use the Calculator?
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Accurate Returns: Avoid overestimating your winnings by automatically applying the correct deduction.
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Time-Saving: Instantly compute adjusted odds without manual formulas.
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Matched Betting Ready: Get new back and lay odds to hedge correctly on the exchanges.
How It Works
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Enter Original Odds: Input the decimal odds you backed (e.g. 6.0).
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Select Deduction Rate: Choose the Rule 4 percentage (5p–90p) based on the withdrawn horse’s odds.
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(Optional) Enter Lay Odds: If you’ve already laid on an exchange, input the original lay odds to see their adjusted value.
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View Adjusted Odds:
The tool applies
so 6.0 at a 45 p deduction becomes (6 – 1)×0.55+1 = 3.75
When to Use
Always run your race bets through the Rule 4 Calculator before settling your lay stakes or evaluating profits—especially if you’re matched betting or qualifying for free bets. It ensures your laid stakes and expected returns reflect real-world deductions, protecting your margins every time. -
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- 1 month, 3 weeks ago
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Single Bet Calculator – How Does It Work?
Oddsmart’s Single Bet Calculator is a free, mobile-ready tool that tells you exactly what you’ll win (or lose) on any straight wager in seconds.
What It Does
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Odds Conversion: Accepts decimal (e.g. 3.50), fractional (e.g. 5/2) or American (e.g. +250) formats.
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Return & Profit: Given your stake and odds, it instantly computes your total pay-out (stake + winnings) and net profit.
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Each-Way & Rule 4 (Optional): Toggle “Each-Way” to split into win/place bets, choose place fractions (¼, ⅕, etc.), and apply Rule 4 deductions for non-runners.
How to Use
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Select Odds Format: Pick decimal, fractional or American.
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Enter Odds & Stake: Type your back odds and how much you’re staking.
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(Optional) Enable Each-Way: If you want place coverage, choose your place terms.
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(Optional) Apply Rule 4: Enter the pence-in-the-pound deduction if a runner has been withdrawn.
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View Results: The calculator auto-updates to show your Total Return, Total Stake and Total Profit under every scenario (win, place, void).
Why You’ll Love It
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Speed & Accuracy: No manual maths or rounding errors.
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Transparency: All formulas are visible—audit at any time.
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Flexibility: Works on desktop, tablet or smartphone with instant feedback.
Whether you’re chasing free-bet qualifications or planning a single punt, Oddsmart’s Single Bet Calculator makes every wager crystal-clear — so you can place bets with confidence.
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- 1 month, 3 weeks ago
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Treble Bet Calculator – How Does It Work?
Oddsmart’s Treble Bet Calculator is a free, mobile-friendly tool that takes the hassle out of calculating returns and profits on any three-selection accumulator.
Key Features
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Multi-Format Odds: Enter decimal (e.g. 4.50), fractional (e.g. 7/2) or American (e.g. +650) odds for each of your three picks.
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Stake Input: Specify your total stake; the calculator handles the rest.
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Immediate Outputs: View your Potential Return (stake × odds1 × odds2 × odds3) and Net Profit (return − stake) in real time.
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Each-Way Support: Toggle Each-Way mode to split your stake into win and place bets, choose place terms (¼, ⅕, etc.), and see both win and place returns.
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Rule 4 Deductions: Apply pence-in-the-pound reductions automatically if a non-runner is declared.
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Step-by-Step Breakdown: See intermediate returns after leg 1 and leg 2 to understand how each selection compounds your total.
How It Works
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Select Odds Format: Choose between decimal, fractional or American.
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Enter Your Odds & Stake: Fill in each leg’s odds and your total stake.
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Enable Optional Features: Switch on Each-Way mode and/or Rule 4 deductions as needed.
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Review Results: Instant display of Total Return, Total Stake and Total Profit, plus leg-by-leg return breakdown.
Whether you’re planning a straightforward win-only treble or covering place bets and late withdrawals, Oddsmart’s Treble Bet Calculator delivers accurate figures in seconds—so you can bet confidently every time.
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- 1 month, 3 weeks ago
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Yankee Bet Calculator – How Does It Work?
Oddsmart’s Yankee Bet Calculator automates the maths behind this 11-bet multiple on four selections—so you can cover every double, treble and the four-fold accumulator without manual errors.
What Is a Yankee?
A Yankee consists of 11 bets on four selections:-
6 Doubles
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4 Trebles
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1 Four-fold accumulator
With a unit stake of £1, the total cost is £11; each-way doubles that to £22.
Key Features
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Multi-Format Odds: Enter each selection’s decimal (e.g. 3.20), fractional (e.g. 11/5) or American (e.g. +320) odds.
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Stake Input: Choose a unit stake per bet or a total-stake mode for easy bankroll control.
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Each-Way Support: Toggle each-way mode to split bets into win/place, select place terms (¼, ⅕, etc.) and see separate place returns.
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Rule 4 & Dead-Heats: Automatically apply pence-in-the-pound deductions and adjust for dead-heat scenarios.
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Real-Time Breakdown: View returns for doubles, trebles and the four-fold plus your Total Stake, Total Return and Net Profit instantly.
How It Works
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Select Odds Format: Pick Decimal, Fractional or American.
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Enter Odds & Stake: Input four selections’ odds and set your stake.
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Enable Options: Switch on Each-Way or Rule 4 if needed.
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Review Outputs: See detailed returns per bet type and your overall profit or loss.
With Oddsmart’s Yankee Calculator, you’ll know exactly what you stand to win—or lose—before you place any bet.
Bet smarter and eliminate manual calculation errors in seconds!
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- 1 month, 3 weeks ago
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Accumulator Calculator – How Does It Work?
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