The Reverse Labouchere flips the logic of the classic cancellation system on its head. Instead of adding a number to your sequence after a loss, you add it after a win β and instead of crossing off numbers on a win, you cross them off on a loss.
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This calculator lets you set a starting sequence, then log each round’s actual outcome to watch the sequence grow, shrink, and eventually clear, exactly as the system dictates.
Because the sequence itself changes shape after every single round, there’s no fixed formula for a full session’s result. Simulating it round by round is the only way to see how a real run plays out.
π How to Use the Reverse Labouchere Calculator
Start by entering a sequence of numbers, comma-separated, such as 1,2,3. This represents your target profit broken into small increments, expressed as units rather than dollars.
Each stake is calculated as the first number plus the last number in the current sequence β if only one number remains, that number alone is the stake.
Set your base unit value and starting bankroll, then tap Apply to load the sequence. From there, log each round as a Win or Loss and watch the sequence update automatically.
π’ Calculator Fields Explained
Starting Sequence – the list of numbers that defines your target profit structure, entered comma-separated.
Base Unit Value – the dollar amount that one sequence unit represents when converted to a real stake.
Starting Bankroll – your notional bankroll before the sequence begins, used to track running totals.
Win / Loss Buttons – tap to record each round’s actual outcome as it happens.
Current Sequence – the live, evolving list of numbers reflecting every round played so far.
π° Understanding the Results
| Result Field | What It Tells You |
|---|---|
| Current Stake | The dollar amount to bet on the next round, based on first+last of the sequence |
| Rounds Played | How many outcomes have been recorded in the current cycle |
| Bankroll | Your running balance after all recorded rounds settle |
| Net Profit / Loss | Total change in bankroll compared to the starting figure |
The sequence itself is the most important thing to watch, since it tells you exactly how the system is behaving β growing after wins, shrinking after losses.
A Reverse Labouchere sequence can theoretically grow indefinitely during a winning streak, since every win appends a new number rather than removing one.
Unlike the classic Labouchere, this version never guarantees the sequence will clear β winning streaks make it longer, not shorter.
This is the core structural difference from the original system: the classic version is designed to fully resolve to zero eventually, while the reverse version’s “clearing” only happens through losses.
π Calculation Formulas
| Situation | Formula |
|---|---|
| Stake (2+ numbers) | First Number + Last Number |
| Stake (1 number left) | That single remaining number |
| Sequence After Win | Append the stake value to the end of the sequence |
| Sequence After Loss | Remove the first and last numbers from the sequence |
If a loss occurs when only one or two numbers remain, the sequence clears entirely rather than leaving a fragment behind.
Every round’s stake depends directly on the current shape of the sequence, which is why this system is modeled as a live simulation rather than a static calculation.
π Practical Examples
Example 1 – Sequence starting at 1,2,3, first round wins: Stake = 1+3 = 4 units ($40 at $10/unit). Win appends 4 to the end: new sequence is 1,2,3,4.
Example 2 – Same session, next round loses: Stake = 1+4 = 5 units ($50). Loss removes first and last: sequence becomes 2,3.
A single loss after a winning streak removes both the smallest and largest numbers at once, shrinking the sequence faster than a single win grew it.
Example 3 – Sequence down to 2,3, this round loses: Stake = 2+3 = 5 units ($50). Since only two numbers remain, the loss clears the sequence entirely β cycle complete.
A loss with only two numbers left in the sequence clears the entire cycle in one round.
Example 4 – Long winning streak from 1,2,3: Five straight wins each append a growing stake, and the sequence balloons to eight entries. Total staked and profit both climb quickly, but so does exposure on the next loss.
π‘ Tips & Best Practices
Set a maximum sequence length or stake ceiling in advance, since nothing stops the sequence from growing during an extended winning streak.
Start with small starting numbers rather than large ones β the system’s stakes scale directly with whatever values you begin with.
Track full sessions rather than judging the system after just a handful of rounds, since a single early loss can behave very differently from one late in a long streak.
- Decide in advance how many consecutive wins you’ll allow before deliberately taking profit
- Compare a completed cycle’s net result against simple flat staking over the same outcomes
Remember that a “cleared” sequence in this system results from losses, not wins β treat clearing as the end of a cycle, not necessarily as a win.
Because this system grows stakes during winning streaks, decide your walk-away profit target before you start, and actually stick to it once you hit it.
Reset with a fresh, modest sequence each new session rather than continuing to grow an old one indefinitely.
β οΈ Common Mistakes to Avoid
Assuming this system behaves like the classic Labouchere?
The classic Labouchere is designed to fully resolve to zero through a mix of wins and losses; the reverse version has no guaranteed endpoint during a winning streak.
Confusing the two systems can lead to badly misreading your actual exposure, since the reverse version can keep growing rather than winding down.
Always treat the Reverse Labouchere as its own distinct system with its own risk profile, not a small variation on the original.
Mistaking Reverse Labouchere for the classic version is the most common and costly misunderstanding of this system.
Letting the sequence grow without a cap?
Because wins append new numbers rather than remove them, an extended winning streak can push the stake far higher than a bettor originally intended.
An uncapped Reverse Labouchere sequence can produce a single-round stake many times larger than the starting numbers implied.
Always set a maximum stake or sequence length in advance and stop adding to it once reached.
π― When to Use This Calculator
Use this tool to simulate a Reverse Labouchere sequence round by round, whether testing a hypothetical run or tracking a real session as it happens.
A cancellation system only makes sense once you’ve watched it evolve through both winning and losing stretches, not just imagined the best case.
It’s also useful for directly comparing the reverse version’s growth pattern against the classic Labouchere’s resolution-focused design.
π Related Calculators
Labouchere Calculator, Paroli Calculator, Reverse Dalembert Calculator, Oscar’s Grind Calculator, Fibonacci Calculator
π Glossary
Reverse Labouchere – a cancellation system that appends numbers on wins and removes them on losses.
Labouchere – the classic cancellation system that removes numbers on wins and appends them on losses.
Sequence – the evolving list of numbers used to determine each round’s stake.
Cancellation System – any staking method built around crossing off or appending values in a target list.
Cycle – one complete run of a sequence from its starting numbers until it’s fully cleared.
Unit – a single value within the sequence, converted to a dollar stake via the base unit value.
Bankroll – the total funds set aside for betting activity, tracked round to round.
Flat Staking – betting the same fixed amount regardless of previous outcomes.
Progression System – any staking method that changes bet size based on prior outcomes.
House Edge – the built-in statistical advantage held by the operator on a given game or market.
β Frequently Asked Questions
What is a Reverse Labouchere system?
It’s a cancellation staking system that appends the stake to the end of the sequence after a win, and removes the first and last numbers after a loss.
For example, starting at 1,2,3 and winning the first round adds a 4 to the end, making the sequence 1,2,3,4.
How is this different from the classic Labouchere?
The classic Labouchere crosses off the first and last numbers on a win and adds the lost stake on a loss, aiming to fully resolve the sequence to zero through both outcomes.
The two systems respond to identical outcomes in exactly opposite ways, so a sequence built for one is not a safe substitute for the other.
Reverse Labouchere instead grows during wins and only shrinks toward clearing during losses.
Can the sequence grow indefinitely?
Yes, in theory, since every win appends a new number rather than removing one. A long winning streak can produce a sequence with many entries and a correspondingly large stake.
Setting a personal cap on sequence length or maximum stake is the standard way to manage this risk.
What happens when the sequence clears completely?
A loss when two or fewer numbers remain empties the sequence entirely, which the calculator treats as a completed cycle. You can then apply a fresh starting sequence to begin again.
This is different from the classic Labouchere, where clearing the sequence to zero is generally treated as reaching your target profit.
Does this system work for any type of bet?
The unit-based structure works best with roughly even-money propositions, since the stake and payout math assumes a simple win/loss outcome per round.
It can be applied to other odds, but the growth and clearing dynamics become harder to interpret at very short or very long odds.
βοΈ Legal Disclaimer
This calculator is provided for informational and educational purposes only. It does not constitute betting advice, and results are estimates based on user-supplied inputs and standard cancellation system conventions. No staking system changes the underlying house edge or probability of any wager. Always gamble only within your means.
