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Dozen Bet

Last updated: 07.18.2023 by Andrew Shepard

In roulette, “dozens” is a type of bet that covers 12 numbers and pays out 2:1. With 12 of the 37 numbers of a European roulette table covered, your chance of winning a Dozens bet is 32.4%. A dozens bet is pretty easy to understand. You see, all of the numbers except 0 are divided into three sections. The top section is 1-12, the middle section is 13-24, and the bottom section is 25-36. So, you are essentially betting on the called number to fall within the range of the dozen numbers you wagered on. There are many useful uses for this bet, so let's check how this bet works and give some useful tips.

Odds for 0 version 32.4% 31.6% 1:2 -0.3513

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Putting the Dozens Bet to the Test

We hear you loud and clear! You want to know how the average player would do exclusively betting dozens over a long session. Well, we used Google Sheets and the relevant mathematical formulas to create such a simulation. We used four imaginary players who each started with \$1,000 and wagered \$1, \$5, \$10, and \$20 per round, respectively. You can see the results in the graph below.

As the graph shows, the long-term trend of solely betting Dozens is negative. However, it also shows that making a profit from it isn’t out of the question. Player 1 made it out of the session with a total gain of about \$500. He was actually up about \$1,000 at one point. Of course, this can largely be attributed to using the largest stakes and going on a bit of a lucky tear early on.

Player 3 was the most unfortunate. A combination of \$10 bets and a couple of bad runs conspired against him. Meanwhile, Players 1 and 2 saw their bankrolls take smaller hits in a more gradual manner. This graph shows how bigger bets can make a bankroll far more dynamic.

Tips and Strategies for Dozens Bets

If you have read some of our other roulette tutorials, then you already know that this type of bet can be used with many strategies and betting systems. Here are three of them.

Martingale for Dozens Bets

We have already taken an in-depth look at the Martingale system. While it definitely has a lot of merits, Martingale also comes with its share of risk. In particular, a modest losing streak can make it so that you either reach the table betting limit or your bankroll becomes too small to place the required bet amount.

Even though Martingale is mostly intended for even-money bets, it can also be loosely applied to Dozens bets if we tinker with the betting progression. The algorithm looks like this:

• We place a bet with a certain base value on one of the dozens
• In the case of each successive loss, we increase the bet according to such a progression 1-2-3-4-6-9-13-20-30-45-67-100
• In case of a win, we return to the base rate

Palestis Single Dozen

In terms of odds and payouts, column bets and dozens bets are the same. Both cover 12 numbers, both have a 32.4% chance of hitting, and both pay out at 2:1. With the Palestis Single Dozen method, we must first wait for a specific situation. The trigger is when a column or dozens has appeared just once in the last three rounds. You then wager on that dozen or column.

For instance, let’s say that the last three spins landed on 2, 13, and 15. Because the first (top) dozen is represented just once in those three spins, that’s where we put our money. Let's see how it works with an example:

• We place 1 base unit on the first dozen
• If that spin loses, we once again wait for the right scenario to present itself and then up the wager amount.
• We go back to the base amount after a win.

Notice we raise our bet after a loss, so Palestis is a negative progression system like Martingale and others.

Favorite Dozens System

The favorite dozens system is similar to the above-mentioned Palestis single dozen method. What you need to do is place a wager on the dozens group that has appeared the most over the past nine spins. If two different groups have both appeared four times, then go with the most recent one. The same idea applies if all three dozens sections have each appeared three times.

So, the idea is to keep betting on that same dozen until you either win a round or lose three in a row. It’s then time to finish the iteration and pick out a new dozen to bet on. We recommend upping your wagers following a loss using a progression of 1, 1, 1, 2, 3, 4. Go back to the base amount after each win.

Conclusion

Dozens bets are one of the most popular outside roulette bets because they are easy to understand, and they pay back plus money. Still, it’s important to keep in mind that a dozens bet has a near 1 in 3 chance of winning while the payout is 2:1. This math alone can do great damage to your bankroll over the long term. We urge you to experiment with dozens bets and try them out in conjunction with other bet types and betting patterns.

Any questions? Ask our Roulette Wizard!