The Martingale Roulette System

The martingale gambling system is very simple and seems on the face of things to work quite well. This is how it works, say you are playing roullette and you put £5 on red and it loses you then double your bet to cover the orginal lost bet and you still get your win. There are two things you need for this to work 100% they are, an unlimited amount of cash and a table with no limits.
People have played the system and have been lucky if the run of the table is pretty safe(eg Red,Black,Red,Black,Black,Red,Red,Black,Red) you will not have to keep doubling many of your bets to ensure a win.
But it has been known for a bad run of colours to run as high as 13 reds in a row, this is how your betting would look if that where to happen:
£5, £10, £20, £40, £80, £160, £320, £640, £1280, £2560, £5120, £10240, £20480