It is common knowledge how roulette systems work or at least most of them. In reality though, only the Martingale is the most widely known and used. However the Martingale is a very dangerous system to use as it is a doubling system.
Any system that operates in this way not only escalates the bets to dangerous levels but it also reaches the table maximums as well. This ultimately defeats the system and leads not just to loss but to huge losses.
In theory of course, in the long term then everything should just even out to the same ROI as if you were flat betting and that is -1.35%. So if you had made $100,000 in bets then you should be behind by $1350 on average. This is presuming that you are playing a single zero wheel and that you are flat betting the same amounts.
However in the short term of a few thousand spins then betting systems can be effective and even more so on blackjack where the house edge is less. If you play accurate basic strategy which isn’t hard to learn then the house only has a 0.5% edge so you could wager the same $100,000 and your expected loss would only be $500 and not the $1350 on roulette.
Cancellation systems also work on blackjack as well and they work in the following way. Let us say that the table minimum is $2. You would then write a series of numbers down that represented bets. This could be 2-3-4-5, the next stage is to bet the first and last numbers in the sequence. If they lose then you have lost $7 and you cancel the 2 and the 5.
The next bet becomes the two remaining numbers which are 4 and 3. If this loses then you start again minus $14. If it wins then you are back to level but you add the number 6 to the end of the line.
It is worth you looking up these systems elsewhere on the blog as there are no reasons as to why they cannot be used on blackjack.
