The best roulette strategy requires you to change the size of the bet based on your results. For example, when using the Martingale strategy, you have to double the bet after a loss and then reset to the initial bet after you win.

In American roulette, there is a second green pocket marked 00. Pocket number order on the roulette wheel adheres to the following clockwise sequence in most casinos: Single-zero wheel. 0-32-15-19-4-21-2-25-17-34-6-27-13-36-11-30-8-23-10-5-24-16-33-1-20-14-31-9-22-18-29-7-28-12-35-3-26.