The Cancellation Gambling System

How it works

At the start of a betting session you decide how many even money units you would like to try and win. You should also decide how much you are willing to lose. That way, if you reach that limit you can just stop and walk away. For the sake of example, let's say you would like to win 5 'units' and are willing to lose 15.

You start by writing each unit on a piece of paper like so: 1 1 1 1 1. Each bet you make should be the total of the units at the far left and far right. In this case, that's 1 and 1, so we bet 2. Let's say we won. In that case we cross off both numbers, so we now have: 1 1 1. So again we bet the total of the left and right (still 1 and 1), and we win again. Cross off the numbers, and we are left with only 1. We now bet that single unit, and if we win we have achieved our goal of winning 5 units.

But what happens if we start to lose?

Well, in that case we add the amount we lost to the list. Let's use the same example. We start with 1 1 1 1 1. We bet the sum of left and right (1 and 1). We lost, so we add 2 to the list: 1 1 1 1 1 2. Again, we bet the sum of left (1) and right (2) and lose. So our list is now: 1 1 1 1 1 2 3. Again, we bet the sum of left (1) and right (3) and lose. So now our list is 1 1 1 1 1 2 3 4. We continue until we have either lost 15, or we manage to start winning again and cross off some of the numbers. If we were to win the next round (betting 1 and 4) the list would be 1 1 1 1 2 3.

Why is the system popular?

The theory behind this system is that because you are adding one number for a loss, but subtracting 2 for a win you have a good chance of eventually arriving at a win. Indeed, like the Martingale, if you have a sufficient bankroll the probability of winning say 10 units is greater than that of losing the entire bankroll. However, you are winning comparatively little in exchange for the risk of losing everything. Let's take a look at the odds for trying to win 10 units when betting Roulette:

• Bankroll / Probability of losing everything


• 5 / 72.9%


• 10 / 58.2%


• 20 / 42.2%


• 50 / 21.5%


• 100 / 15.3%


• 200 / 9.2%


• 300 / 6.8%


• 500 / 4.6%


• 750 / 3.3%


• 1000 / 2.7%

Now, looking at that table it may seem tempting to go in betting with a bankroll of 1000. But remember, the probability exists that you will lose everything; and all you can ever gain is 10.

Overall, then, this system is not recommended. Whilst it can be fun to play in the short term, it can never be a winner in the long term.

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