Roulette Systems
Lowering the house edge
Every casino game includes an edge, giving the house a mathematical advantage over players. This is how casinos generate revenue, and it is an integral part of how these games function. Over time, the vast majority of players will experience losses, while the casino benefits from margins that are built into every game. As a roulette player, your aim should be to reduce this edge wherever possible. Gaining experience, learning from previous rounds, and adjusting your approach can limit potential losses, helping you play more strategically.
Roulette lends itself well to systems and planned betting. Once the ball spins and bets are placed, especially when playing online, you need to rely on your own strategies. Consistently betting on single numbers in the hope of high payouts can result in significant losses. By exploring various betting methods, combining wagers, or tracking recent outcomes, you can make the house edge less pronounced and potentially extend your playtime. Several systems have been developed over time. Remember, however, that roulette is governed by chance and no system will eliminate the house advantage entirely. These methods may allow you to enjoy longer sessions or help you leave ahead if you manage your bankroll carefully.
Martingale system
The Martingale system remains one of the most straightforward and frequently used betting approaches in roulette. This method is simple to understand, making it accessible for beginners and experienced players alike. It is specifically suited for bets with even odds, such as red or black, where the payout is 1:1. To use Martingale, place a single unit bet (for example, £1) on red. If you lose, double your next wager (£2), continuing to bet on red. Each time you lose, double your bet; if you win, return to your original stake.
Over time, a win covers all prior losses plus a profit equal to your first bet. However, there are risks. There have been cases, such as in Monte Carlo, where a single colour appeared 26 times in succession, quickly overwhelming even substantial bankrolls. While Martingale is easy to use, it does not remove the house edge and can be limiting if long losing streaks occur or betting limits are reached.
Labouchère system
The Labouchère system, sometimes called the cancellation system, is a progressive approach requiring more planning than Martingale. It involves writing down a sequence of numbers, each representing a betting unit. Your bet is the sum of the first and last numbers in the sequence. Win the bet, cross those numbers off the list; lose, and add the total wagered to the end of the sequence. Continue until all numbers are removed, which indicates the system has completed its cycle and you have won the net value of the original sequence.
Bets do not increase as rapidly as they do in Martingale, making potential losses less severe if managed responsibly. The Labouchère system appeals to those who prefer order and discipline, though it does require attention and a willingness to follow the method strictly for best results.
DAlembert system
The DAlembert system is another established method, offering a less aggressive progression compared to Martingale. In this strategy, you increase your wager by one unit after a loss and decrease it by one unit after a win. For example, starting with a £10 bet on red, if you lose, bet £20 next. After a further loss, increase to £30, and following a win, reduce your stake by one unit (back to £20).
The system works best on even-money bets, such as red or black or odd or even, providing moderate risk and steady gameplay. Unlike some progressive systems, DAlembert does not escalate wagers as quickly, making it a more measured approach for longer sessions, particularly at tables using European or French roulette rules.
Oscars Grind system
Oscar’s Grind is designed to achieve a profit of one unit per gaming session. This method involves placing a consistent bet until a win, then increasing the wager by one unit. At the core, the goal is simple: once the net gain reaches one unit, end the session.
For example, bet £10 on red or odd. If you lose, keep the stake the same. Following a win after a losing round, raise your bet by one unit (£20) and continue. If you reach your profit goal, stop and leave the table. The most effective way to approach Oscar’s Grind is to set strict win objectives and avoid the temptation to recover heavy losses by increasing bets unsustainably. Never wager more than you can afford to lose.
Advanced systems
Many additional strategies exist for those who wish to try alternatives beyond the best-known systems. Methods such as Tier et Tout, The Hollandish, and Parlay introduce new layers of complexity and require dedicated study and practice. Consider reading specialist literature on roulette systems before trying these approaches at the table. Skilled players often switch between different systems within one session, adapting their tactics based on outcomes and table dynamics. Flexible and well-researched play, combined with clear personal limits, is key to making the most of any roulette session.
Comparison table for main roulette systems
| System | Progression Type | Best Used On |
|---|---|---|
| Martingale | Negative | Even-money bets |
| Labouchère | Negative | Even-money bets |
| DAlembert | Negative | Even-money bets |
| Oscar’s Grind | Positive | Even-money bets |
Last updated in 2025
Emily Thornton boasts a degree in Digital Media from the University of Bristol, accompanied by an obsession for the online casino world. Over the past six years, she's combined her tech-savvy skills with a flair for writing, producing in-depth reviews and slots analyses for various casino platforms. A frequent contributor to free-spins.org, Emily's articles are grounded in research, ensuring readers gain trusted insights into the dynamic world of online gaming.