Discovering the best way to win adds excitement and makes roulette even more fun to play. That’s where the 2/3 betting method shines at online casinos. It’s a simple gambling strategy designed to give you the highest win-rate possible at every round. It is sometimes referred to as the ‘98.48% method’.
Read on to learn everything about the 2/3 method. Tackle all the important details like what it means, how to use it, a simulation of its use in practice, as well as the pros and cons of using it. After learning how to use the 2/3 method, you can try it out at various games in Bitcasino.
The online casino 2/3 betting method is designed specifically for roulette games, revolving around the game’s 2:1 bet types called the ‘dozens’ and ‘columns’. Each one has three options, and the strategy is called that because it involves placing a bet on two out of three outcomes per round.
It is also called the 98.48% method because that’s the theoretical win rate of the strategy. If you keep covering two dozen (24 numbers) on every spin, you achieve an approximate 98.48% probability of hitting at least one number within four consecutive rounds.
Where did the figure 98.48% come from? That is the theoretical return on the same two dozen bets over four consecutive spins. This follows the theory that one dozen may win three times in a row, but the probability of it winning four in a row is low (about 0.96%), though not impossible. This is when following the rule of probability, a basic statistical equation that applies in roulette.
In the 2/3 betting method, you’re betting on two dozen or columns, covering 24 numbers out of 37 in European roulette. In this simulation, say that you’re betting on 2nd and 3rd dozens, and you lose the bet if the roulette lands on 0 to 12.
The chance of losing is 13 out of 37, or a 35.14% chance of happening. Meanwhile, your chance to win from a bet on 24 out of 37 is 64.87%. In mathematical form, the solution is as follows:
P(A) + P(A’) = 1
P(A) = 24/37 = 64.87%
P(A’) = 13/37 = 35.14%
The equation that follows is the rule of complementary events, or P(A) + P(A’) = 1. It means that one of the two given is bound to happen; there is no third option. This formula helps as an alternative method to solving for either side, but with basic transposition:
To solve for win probability over multiple bets, the best equation to use is a slightly modified version of the rule of complementary events. Factoring in the number of consecutive times (N) will turn the formula into the equation for ‘probability of at least one’. To solve for P(A) over multiple spins, the formula is as follows:
In this equation, the number of consecutive times is 4.
Solve for P(A); N = 4
P(A’) = 13/37
P(A) = 1 - (13/37)4 = 0.9847606476 = 98.48%.
When you solve for other attempts, the result will be as follows:
| Number of consecutive bets | Probability of failure P(13/37)N | Probability of winningP(A) = 1 - (13/37)N |
| 1 | 35.14% | 64.86% |
| 2 | 12.34% | 87.66% |
| 3 | 4.34% | 95.66% |
| 4 | 1.52% | 98.48% |
| 5 | 0.54% | 99.46% |
| 6 | 0.19% | 99.81% |
After four consecutive spins, the probability of having won at least once is 98.48%, meaning the chance of losing all four spins in a row is only 1.52%. In other words, you have a 98.48% chance of hitting at least once within four spins if you keep betting on the same two dozen, but if you’ve already lost four in a row, your next spin still has the same 64.86% chance to win.
Remember that the 2/3 betting method is all about placing a bet on two out of three possible outcomes in a game. In roulette, two types of bets let you do this, and those are called columns and dozens.
Here’s using Bitcasino Roulette from OneTouch as an example:
Most online casino tables present the roulette layout in a horizontal orientation, which can make the betting areas look different. Sometimes players mistakenly call the vertical ‘columns’ rows, or confuse the dozens with columns. To be clear: the ‘columns’ are always the three vertical bets on the far right, while the ‘dozens’ are the three 12-number bets along the bottom.
If you want to bet 10 Tether (USDT) in one round, distribute it to two columns or rows. In doing so, you’re covering 24 out of 37 numbers in roulette. In this example, if you place 5 USDT each on the 2nd and 3rd columns, then you only lose if the spin hits the following numbers:
0, 1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, or 34
In a dozen bets, the same principle applies. The only difference is that you place your poker chips on the bottom part of the betting table. In the above example, you’ve distributed your 10 USDT budget to bet 5 USDT on the 1st 12 and 5 USDT on the 2nd 12. That means you can only lose if the following outcome hits on the next spin:
0, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, or 36
The steps on how to use the 98.48% betting method are simple and easy to follow. Here’s a short list of steps to follow if you’re new to online roulette betting:
Bitcasino offers a wide variety of games for Japanese players from different providers. Have your pick at any of the top-quality releases. Some of the best games you’ll find are from Live 88, Evolution, Ezugi, and OneTouch.
Clicking on the poker chips activates the betting size you want to place. The range depends on the game you’re playing. Usually, tables have low betting minimums and limits. If you want to place high bets, around 1,000 USDT, then look for high roller or pro tables.
Dozens and columns are the only bet types in roulette that pay 2:1 in European roulette. Make two similar wagers to use the online casino 2/3 betting method, and you’re already done. Keep your bet on the same selections across multiple bets and switch up only when you see a 3-time consecutive winning bet.
Remember that the 98.48% probability only applies over four consecutive spins when covering two dozen or columns. If you see the same dozen or column win three times in a row, the 2/3 method suggests betting on the other two options in the next round. This increases your chances, but keep in mind there’s still a small risk of losing.
What could be the probable profit loss or gain in using the 98.48 percent method in roulette? Here’s a simulation of a continuous bet across 6 spins.
The simulation below shows a 10 USDT bet per round split between two columns. For this simulation, the bets are consistently on the 2nd and 3rd columns.
| Number of games | Winning numbers | Bet size | Winning column | Profit/loss | Cumulative profit/loss |
| 1 | 17 | 10 | 2nd column | +10 | +10 |
| 2 | 32 | 10 | 3rd column | +10 | +20 |
| 3 | 5 | 10 | 1st column | -10 | +10 |
| 4 | 21 | 10 | 3rd column | +10 | +20 |
| 5 | 9 | 10 | 1st column | -10 | +10 |
| 6 | 36 | 10 | 3rd column | +10 | +20 |
Here’s another simulation of using the 98.48% method on dozens. The bet per round is still 10 USDT, but it’s split between the 1st and 2nd sets of 12 numbers.
| Number of games | Winning numbers | Bet size | Winning column | Profit/loss | Cumulative profit/loss |
| 1 | 7 | 10 | 1st Dozen | +10 | +10 |
| 2 | 18 | 10 | 2nd Dozen | +10 | +20 |
| 3 | 29 | 10 | 3rd Dozen | -10 | +10 |
| 4 | 12 | 10 | 1st Dozen | +10 | +20 |
| 5 | 25 | 10 | 3rd Dozen | -10 | +10 |
| 6 | 22 | 10 | 2nd Dozen | +10 | +20 |
The 98.48% method works on games where you can cover two out of three main betting options. Its goal is to capture most outcomes while accepting a small risk of total loss when the ball, card, dice, or symbol falls into the third option. Here are some popular casino games where the principle applies:
The prior instructions on how to use the 2/3 method are dedicated to roulette. It’s the classic example where you place equal bets on two columns or two dozen. Most spins result in a break-even outcome, while you only lose on 13 out of 37 possible outcomes (12 numbers in the uncovered dozen/column plus the zero).
Baccarat technically has three main outcomes: banker, player, and tie. However, most versions only allow one main bet per round. Some variations let you place side bets alongside the main ones, but betting on the player and tie together is not mathematically favourable because tie bets carry a very high house edge. In practice, the 2/3 method doesn’t directly apply to baccarat in the same way as roulette.
Sic Bo is a dice game where you bet on combinations, ranges, or totals. While there’s no direct 2/3 equivalent, the closest parallel is the big/small bet, each paying 1:1 and covering most outcomes. Some players adapt the 98.48% logic by watching for streaks and then betting on the opposite side, though this is more of a streak-chasing system than a true 2/3 method.
The 2/3 betting strategy has lots of great qualities to appreciate. However, it also comes with its downsides that limit its usefulness to most gamblers. Here are the key pros and cons to remember whenever you’re using the 98.48 percent method in roulette:
Starting with the advantages, the benefits of using the 2/3 betting method in roulette are:
The 98.48% method isn’t perfect. Here are examples of the key 2/3 betting method disadvantages:
Before trying the 2/3 betting method at Bitcasino roulette games, you should keep these important points in mind:
The 2/3 betting method is a useful strategy that can stand on its own merit, but certain tips can enhance your experience with it. Here’s how you can maximise your experience with the 2/3 betting method in roulette:
The Kokomo Method adds a measured progression to your 2/3 bets. Instead of staying consistent with the same 10 USDT wager per round, increase your stakes along a sequence like 1x, 2x, 3x, 5x, and 8x. This slow climb helps cushion bankroll strain while still aiming to recover when a win eventually lands.
The Martingale System is for players who prefer an aggressive style for faster recovery. Double your bet after every loss so the next win covers all subsequent failed bets. The risk is that losing streaks can escalate your bets. However, the 2/3 betting method gives you 98.48% to win on a 4th spin, making an extended losing streak highly unlikely.
The Romanovsky Roulette System covers a whopping 32 out of 37 numbers. It builds on the standard 2/3 betting method you already know and love, but adds two corner bets that do not overlap with your initial dozens or columns. This means you only leave five chances to fail. The standard Romanovsky return is low, so you will need to leverage the 98.48% odds.
Roulette strategies like the 2/3 system give you a structured way to enjoy European roulette while managing risks. At Bitcasino, you can put this approach into practice across a wide selection of roulette titles. Each one offers the same thrill but with a different presentation, betting range, or pacing.
Bitcasino provides everything you need for an enjoyable session, from crypto-friendly transactions and a smooth interface to fair gameplay and reliable results. Explore classic roulette tables, modern variations, or count on a seamless experience every time you play. Use what you learned about how to use the 98.48% method at the best crypto casino.
Here are frequently asked questions about the 2/3 betting method in roulette:
Place bets on two out of three dozen or columns, covering 24 numbers total. Whenever one 2:1 bet wins three times in a row, switch your bets to the other two options.
The 2/3 betting strategy improves your chances of winning. However, it does not remove the house edge, and it does not guarantee long-term profit.
Yes. The 2/3 betting method works well with the Martingale or Kokomo methods. Add two corner bets in a spin, and you can turn it into the Romanovsky Roulette System.
It works on both versions because the dozens and column bets are fundamentally similar. However, European roulette is more popular because its single zero lowers the house edge.
Yes. It is simple to understand and easy to apply at the table. New players can enjoy steady gameplay while learning roulette basics, such as knowing how to use the 98.48% method.
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