Dozen Grid Strategy & System

Tips & Tricks for Roulette


So far we have looked at various Roulette betting systems that cover what is known as outside betting or even money bets on the outside of the Roulette table . Poplar betting systems for these sorts of bets on black/red or odds/evens include the D’Alembert and Martingale betting systems on the negative progression betting side of the scale and Paroli and trend betting on the positive progression betting side of the scale. We have also seen just how limiting these types of bets can be, not to mention risky when one considers extended negative bet cycles. If you feel that you are ready to graduate from the very outside of the Roulette table, then perhaps you should consider trying your hand at Dozen Grid betting. Dozen Grid betting is slightly more advanced than just betting on red/black or odds/evens and pays out at 2:1 odds.

Dozen Grid betting strategy facts: Getting Started

  • More advanced than simple outside betting on red/black or odds/evens
  • Pays out at a rate of 2:1
  • Dozen Grid betting is intuitively based on 1st – 2nd or 3rd dozen grid numbers
  • Cover one-third of the table on every bet

Dozen Grid betting system basics

Betting on any one of the three dozen grid boxes is very easy to do and these options are clearly marked out on the Roulette table.

  • 1st dozen = 1 to 12
  • 2nd dozen = 13 to 24
  • 3rd dozen = 25 to 36

One of the biggest advantages to this betting strategy option, besides how easy it is, is the fact that you automatically cover one-third of the table in a single bet. This significantly increases your chances of winning when compared to the more simply red/black or odds/even bets where you either win or lose; there are no spread possibilities associated with those bets. While Dozen Grid betting is more advanced than betting on red/black or odds/evens, they are still considered to be outside bets, which is why they are marked outside the main grid of numbers. Though not as simple as the so-called even number bets (even money) they are still pretty simple and straightforward.

Roulette Strategies

Dozen Grid strategy explained by example

The Dozen Grid strategy for Roulette betting is quite flexible in that it also allows for players to bet on columns. The column bets are set out within the dozen grids in very neat and easy to see columns of three numbers each. For example:

  • Grid: 1st dozen: 1-12
  • 1st column: 1, 2, 3
  • 2nd column: 4, 5, 6
  • 3rd column: 7, 8, 9
  • 4th column: 10, 11, 12

This system of division within the dozen will continue in the second and third dozen grids, giving you very flexible betting options far beyond what you may have been used to in the past. The odds remain the same for column bets at 2:1 and the bet coverage is still one-third of the table which gives you an average win rate of about one in every three spins. In another example, you can increase your winning potential even more by expanding your Dozen Grid system to include additional grids in the second dozen grid or selected columns within the second dozen grid. You can effectively increase your bet coverage from 12 to 24 numbers and win the majority of your bets. Just also be aware that you will pay more to do this since you are covering a lot more numbers per spin. Take a look at this interesting and informative video that demonstrates some of the principals involved with the Dozen Grid strategies for outside Roulette betting:


  • Dozen grid strategies present more options than simple red/black or odds/evens betting
  • You can bet on 1st dozen, 2nd dozen or 3rd dozen
  • You can bet on columns within the dozen grid
  • You can bet on a dozen grids and incorporate columns from the next dozen grid
  • Betting on a dozen grids automatically covers one-third of the Roulette wheel

Other strategies you might want to check out:

  • Trend Strategy
  • Trend Betting Strategy
  • Paroli Strategy
  • Parlay Strategy
  • Martingale Strategy
  • Labouchere Strategy
  • Follow the Leader Strategy
  • Dozen Grid Strategy
  • D’Alembert Strategy

Advantages and disadvantages of Dozen Grid strategy

Moving up from simple even money outside betting can have quite a few advantages over other outside betting options and generally provides more winning opportunities. Betting on the first, second or third dozen will automatically cover one-third of the Roulette wheel which means that you should win one out of every three spins. Increasing your betting spread to include neighbouring three number columns will increase your betting spread further and betting on more than one dozen grids, even further! Naturally, with any Roulette betting strategy, there are disadvantages to consider as well. Increasing your bet will cost you more especially if your bet loses. You will need to increase your wager to recover your starting point and this, in turn, can end up costing you more if your bet loses again. You can use various additional progression betting systems to help you manage betting options when using the Dozen Grid strategies but caution needs to be exercised with a disciplined game plan.


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Chances and risks with the Dozen Grid strategy

There are a number of risks to consider with an increase or step up to dozen grid betting from the somewhat safer area of the basic even money betting areas. It is a good idea to ensure that your bankroll is strong enough to sustain an increase in betting real estate. That said, let’s look at the chances and risks with the following three questions:

Who is suitable for the strategy?

The Dozen Grid strategy betting for Roulette is not really suited for novice or beginner players as it requires a substantial bankroll to cover losing bets adequately. Intermediate and advanced players should find it far more interesting however than the much safer even money bets on the outside of the Roulette table. Casual weekend Roulette players will also find the Dozen Grid system interesting and worth experimenting with.

  • 24% Beginner
  • 59% Advanced
  • 83% Pro

How high is the risk?

Naturally, the risk will increase exponentially when players begin to explore the possibilities that are associated with Dozen Grid strategy betting. As you increase your coverage on the Roulette table you will inevitably begin to pay more for your bets. This is not a problem if you win as you recover your betting expense along with a potentially tidy profit. Losing bets, however, can start to spiral out of control and the ascent to table limits and the end of a bankroll is in fact much steeper than even using the Martingale system for instance.

Are winnings guaranteed?

Winnings are never guaranteed with any casino game and even more so in the game of Roulette. Using the Dozen Grid system, however, does increase your betting coverage which does go some way to guaranteeing your wins as you are now covering one-third of the Roulette wheel as opposed to the more simple 50/50 bets. These naturally only counts if you win which is something that is not guaranteed ever.


Is the Dozen Grid strategy worth it?

The Dozen Grid strategy is worth it in as far as it gives you more options than just sticking to the very basic even money bets of picking between red and black or odds and evens. Adopting the Dozen Grid system is a great way to begin to explore what the rest of the Roulette table has to offer whilst still being relatively safe (when compared to inside Roulette betting). Check out our cool tips and tricks for getting the most out of your Dozen Grid betting experience.


  • You automatically bet on one-third of the table
  • You have higher chances compared to the 50:50 strategies
  • It’s not suited for beginner players


  • Start with just one dozen grids and play that for a few spins to get your feet wet
  • Once you have a handle on how Dozen Grid betting works, try adding a single additional column of three from the second dozen grid
  • You can use a progression betting system to help you manage your wins and losses
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