Roulette Systems

I've come across so may Roulette systems in the past few weeks - each claiming that by using that particular system, I would win more often than I would lose. I've since found out that that isn't true. Technically, you could keep betting on red, for example, and keep doubling your bet each time you lose, but you would either reach the table betting limit, or lose your bankroll. This method did work for me for a little while, until I got a run of reds for sixteen spins. I gave up on betting red/black after that. You could spin without betting until you saw ten reds in a row, and then bet on black, but you'd be waiting around for quite a while and might only make a few dollars. That still wouldn't guarantee a win, though, as your chance of getting a black on the 11th spin would still be 50%. Here's how the red/black system is supposed to work:

- Spin the wheel without betting until you get one color (red, for example) for 10 spins.
- Bet $1 on black.
- If the ball lands on black, you get $2 back, which is a win of $1.
- If the ball lands on red again, double your bet to $2 to cover your previous loss. If the ball lands on black, you get $4 back, a win of $1.
- If the ball lands on red again, double your previous bet of $2 to $4. If the ball lands on black this time, you get $8 back, which is a win of $1 since the rest is used to cover the previous losses.
- You keep doubling your bet until the ball falls on black, and then you start all over again by watching for a run of the same color for 10 spins. You would then bet on the opposite color.

Chart:

Spin#-----Bet-----Profit
11----------$1------$1
12----------$2------$1
13----------$4------$1
14----------$8------$1
15----------$16-----$1
16----------$32-----$1
17----------$64-----$1

Most tables have a limit of $100 per bet, so if you were using the above chart, you would need a black to show on the 18th spin to avoid losing your money. You would also need to start with a bankroll of around $150 to cover previous losses if you were to get a long run of one color. Even by using a betting system such as the one above, you could and probably would lose as the longest run of reds ever observed was 24 in a row. You could start betting after 20 spins to minimize losses, but the chance of getting 20 in a row of one color is pretty slim and you would probably end up waiting for hours to see it happen only to win a small amount.