I don't think there is an official procedure if the player doesn't have enough money to double his last losing bet, but still has some money. His fourth bet is $1,600, which loses.Let's look at an example of a player with a $100 winning goal and a bankroll of $6,300. No matter how many losses precede a win, you will achieve your winning goal exactly. As long as you can keep doubling, you will achieve your winning goal eventually. In other words, keep doubling your previous bet, until you win.

If you can't double your bet because you're busted, then walk away broke.

If the result of your last bet is a loss, then double your next bet size, if you can.

If the result of your last bet is a win, then you have achieved your winning goal and may quit.

Your first bet should be your winning goal.

To make the math easy, the ratio of bankroll to winning goal should be one less than some power of 2.

The great the ratio of bankroll to winning goal, the greater your chances of a session success are.

Start by deciding what your winning goal is and your bankroll size.

The Martingale is generally played on even money bets.

The following are the rules of the Martingale. However, everybody has a finite supply of money and eventually the Martingale will take down even the biggest of bankrolls. The siren's call of the Martingale has fooled many gamblers as it usually results in a session win. There can be little debate that the Martingale is one of the oldest and most popular betting systems.

Modified 24 8 roulette system