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Dozen Bet

Last updated: 18.07.2023 by Andrew Shepard

Dozens is a bet available on all variants of roulette that, as the name suggests, covers a total of 12 numbers. It pays 2:1 and allows you to wager 12 out of 37 numbers in European roulette. In single-zero roulette variants, you have a 32.40% chance of winning this bet.

Dozens is an easy bet to understand. On a roulette table, all numbers except 0 are divided into three sections, with a dozen numbers in each section. The numbers in the first section are between 1-12 (first 12), the numbers in the second section are between 23-24 (second 12), and the numbers in the last section are between 25-36 (third 12). So, as can be seen in the image below, a dozen bet is placed for one of these sections and includes all the numbers in that section.

Dozen Bet
Odds for 0 version 32.4%
Odds for 00 version 31.6%
Payout 1:2
Expected value ($1) -0.3513

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Simulating the Dozens Bet with 1.000 Spins

We ran a simulation of 1,000 spins using mathematical formulas to see how the Dozens bet would work out in the long run. In this simulation, we used four players, each with a bankroll of 1,000 GBP, and made wagers of 1 GBP, 5 GBP, 10 GBP, and 20 GBP per round, respectively. We charted the results with Google Sheets and sharing them below.

Dozen Bet test

This chart shows that Dozens bet can only be profitable in the long run with large wagers. Players 1, 2, and 3 had a completely negative curve after 800 spins and lost different amounts. The player who made 20 GBP bets experienced a loss curve in the short term (200-400 spins) and long term (800+ spins), but it was the only player who managed to complete the simulation with a profit.

We also see in the chart that the win/loss ratio is not very volatile when played with small amounts. With 20 GBP bets, the curve is much more dynamic. The simplest conclusion we can draw from here is that Dozens bet is a good option if you don't have a bankroll problem and the volatile win/loss ratio doesn't bother you. However, it does not give good results for low-roller players, neither in the short term nor in the long term.

Simple and Effective Strategies for the Dozens Bet

As Dozens is a bet that can be used on all roulette variants, it can be integrated into all existing roulette strategies and even has its own systems. Below, we mention some of them.

Dozens Bet with Martingale

Despite the risks of the Martingale system, it offers huge earning potential. However, it is often used for roulette bets that pay 1:1 to prevent you from reaching the table limit and reduce the possibility of bankruptcy. That being said, it can also be used to bet on Dozens with certain limits (e.g., stopping when the wager amount reaches 100 GBP). For example:

  • Start playing with 1 GBP
  • Keep doubling the wager amount as long as you lose. In such a series, the wager amount will increase as follows: 1-2-3-4-6-9-13-20-30-45-67-100 GBP
  • Return back to 1 GBP if you win.

Palestis Single Dozen Method

This method also uses the Martingale system but follows the section patterns to guide you on where to place your bet. Simply put, you will need to place a bet for the section that comes out the least after the first three spins using the Martingale rules. For example:

  • Let's assume that the results after the first three spins are 2, 13, and 15.
  • One of these results (2) is in the first section, and two (13 – 15) are in the second section.
  • Place your bet on the first section because it came out the least. Keep doubling the wager if you lose, just like in Martingale.
  • If you win, return the initial wager amount.

Favorite Dozens Strategy

This strategy is similar to Palestis, but this time it uses the sections that came out the most and requires a longer spin tracking. To use this system, wait for nine spins to complete and place your bet on the dozens group in the section that appeared the most. If there is a “tie” between sections, choose the most recent one.

Don't change the section until you make a win or lose three times in a row. In this process, raise your bets according to the following progression: 1,1,1,2,3,4, if you lose and return to the amount you started when you won.

One of the Most Popular Roulette Bets

Dozens is very popular as it is an easy-to-understand bet that is preferred by both beginners and veteran players. But keep in mind that your odds of winning are 1 in 3, and this bet only pays 2:1. As you can see in the simulation above, it only becomes profitable when you play with high stakes, and even then, it has a pretty volatile win/loss curve. In other words, if you have a limited budget, there is always the risk of consuming your bankroll without seeing a real return. As with other roulette bets, we recommend experimenting with Dozens, too: for example, try combining it with a straight bet or try to reduce the level of risk with a system like d'Alembert. The more betting patterns you try, the clearer you will get a clear idea of how useful betting on Dozens can be.

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