Outside Bets Overview: Cover Large Number Groups with Safer Bets

Most roulette players eventually settle into a pattern: after a few sessions of chasing single-number payouts and watching their bankroll evaporate, they start migrating toward the outside of the table. That’s where the even-money bets live — red/black, odd/even, high/low — along with dozens and columns. These bets won’t produce the dramatic 35:1 payoffs, but they hit often enough to keep your chip stack from vanishing in fifteen minutes.

The appeal is straightforward: outside bets cover large groups of numbers, which means you win more frequently (though for less money). A $10 bet on red wins about 48.65% of the time on a European wheel. That’s not a coin flip, but it’s close enough to keep sessions alive.

If you want to understand how outside bets work, their probabilities, and how they differ across roulette variants, this article will guide you through the essentials. We’ll cover even money bets, column bets, dozen bets, and why these are often called “safer” bets in roulette.

What Are Outside Bets in Roulette?

Outside bets are wagers placed on the outer part of the roulette table layout, covering broad categories of numbers instead of specific individual numbers. These bets typically cover about 18 numbers at once — almost half the total on the wheel — depending on the variant. That means they pay out less per win (usually 1:1 or 2:1) but hit more frequently than inside bets like straight-ups or splits.

Common Types of Outside Bets

• Even Money Bets: Red or Black, Odd or Even, 1–18 (Low) or 19–36 (High)
• Dozen Bets: 1st 12 (1–12), 2nd 12 (13–24), 3rd 12 (25–36)
• Column Bets: Each column on the table layout contains 12 numbers; betting on a column covers all numbers in that column.

These bets are often the first moves new players make because they’re straightforward and offer a better chance of winning a spin. The numbers tell the story: a bet on red covers 18 red numbers, so your chance of hitting red on a European wheel (with one zero) is 18/37, about 48.65%. To put this into perspective, if you bet $10 on red for 100 spins, you can expect to win roughly 49 times, receiving $10 profit each win (plus your original bet back), although the house edge ensures a small overall loss in the long run.

Why Are Outside Bets Called Safer Bets?

“Safer” is a relative term here. Outside bets have nearly a 50-50 chance of winning (slightly less because of the zero(s)) and thus a steadier, less volatile ride compared to inside bets where you might hit once in 37 spins or less. While payouts are smaller, the frequency of wins can help maintain a more balanced bankroll and reduce the emotional swings that come with long losing streaks.

Take the case of a $500 session: a player who places $15 on odd numbers every spin, covering 18 numbers. With the probability of winning at 48.65% on a European wheel, you’re likely to win nearly every other spin. This consistent flow of smaller wins can be more satisfying and less nerve-wracking than waiting for a rare single-number payout.

If you want to compare these outside bets with the higher risk, higher reward inside bets, see our article on inside bets overview roulette that explains how those strategies contrast with this more conservative approach.

Probability and House Edge on Outside Bets

Understanding the math behind outside bets is crucial, especially when comparing roulette variants. Let’s break down probabilities, payouts, and house edges for these bets.

European roulette’s single zero reduces the house edge by nearly half compared to American’s double zero, which is a crucial consideration for players who want to maximize their chances over time.

Even Money Bets and La Partage Rule

In French roulette, the La Partage rule applies to even money bets: if the ball lands on zero, you lose only half your even money bet instead of the full amount. This halves the effective house edge on these bets to about 1.35%, making outside even money bets in French roulette the best mathematical choice for risk-averse players.

On a $500 starting bankroll, that looks like this: if you bet $50 on black in French roulette and the ball lands on zero, you lose only $25 instead of the full $50. This subtle difference can save you significant money over hundreds of spins.

How Outside Bets Perform in Real Play

Take a player who brings a $500 bankroll to a European roulette table and decides to focus on outside bets to stretch their playtime and reduce volatility. They place $25 bets on red every spin.

• Probability of winning each spin: 18/37 ≈ 48.65%
• Expected loss per spin: $25 × 2.70% ≈ $0.675
• Expected win per spin: $25 × 48.65% × 1 = $12.16
• Expected loss per spin: $25 × (1 - 48.65%) = $12.84

The 2.7% house edge means, on average, you lose about 67 cents per $25 bet in the long run. But because nearly half the spins pay out, you’ll experience frequent wins, helping maintain your bankroll longer and giving you more chances to capitalize on streaks or walk away ahead.

Contrast this with placing a $25 straight-up bet on a single number:

• Probability of winning: 1/37 ≈ 2.7%
• Payout: 35:1 (i.e., $25 bet pays $875 plus your original $25)
• Expected loss per spin: $25 × 2.70% = $0.675 (same house edge)
• But wins are rare and payouts infrequent, increasing variance and risk of losing your bankroll quickly.

Column and Dozen Bets: Moderately Risky, Moderately Rewarding

Column and dozen bets cover 12 numbers and pay 2:1. Their chance of winning is about 32.4% on European wheels. If you bet $30 on a dozen:

• Win about 1 in 3 spins
• Payout: $60 plus your original $30
• Expected loss per spin: $30 × 2.7% = $0.81

This middle ground appeals to players who want bigger payouts than even money bets but still want relatively frequent wins.

Running the math on a 100-spin session betting $30 on the second dozen (13–24), you can expect to win roughly 32 times, receiving $90 per win (including your original bet). The steady wins help maintain your bankroll while still offering a chance for a meaningful payout.

Betting Strategies with Outside Bets Roulette

While no betting system changes the house edge — that’s a fundamental rule of roulette — outside bets lend themselves to popular betting approaches that focus on bankroll management and steady play.

The Martingale on Even Money Bets

The classic Martingale system involves doubling your bet after every loss on even money bets (like red/black). The idea is to recover all previous losses plus a profit equal to the original stake on the very next win.

Example:

• You start with $10 on red.
• Lose 3 times, so you’ve lost $10 + $20 + $40 = $70.
• On the 4th bet, you wager $80.
• If you win, you gain $80, recovering your $70 losses plus $10 profit.

The problem? The potential for huge losses or hitting the table limit before a win arrives. At a $10 minimum table, this means after 6 consecutive losses, you’d have to bet $640 next to continue, risking $1,270 total. Many players don’t have the bankroll for this, and casinos often have maximum bet limits that stop progression.

Also, this does not change the 2.7% house edge on European roulette. Many players using this system end up losing their bankroll quickly because the risk grows exponentially.

D’Alembert and Fibonacci Systems

These are more conservative progression systems. Take a $25 session bankroll for example: D’Alembert increases your bet by one unit after a loss and decreases by one unit after a win, aiming for a balanced approach on even money bets.

Again, these systems cannot overcome the house edge but may help some players psychologically by structuring bets and managing emotions during play.

For more on managing your bankroll and betting strategies, see our article on flat betting vs progressive roulette.

Comparing Roulette Variants for Outside Bets

If you want to maximize your chances with outside bets, French roulette’s La Partage rule is unbeatable. European roulette is the next best, and American roulette is the least favorable due to the extra zero.

When choosing a casino or online platform, always check which roulette variant is offered. Many players overlook how much difference the single zero vs. double zero makes to their expected returns.

For a detailed comparison, see our guide on european vs american vs french roulette differences.

Responsible Play with Outside Bets

Outside bets provide a way to control variance and play more sustainably, but they aren’t a guarantee of profit. It’s crucial to set strict limits on how much you bet per spin, define your session bankroll, and know when to walk away.

A player with a $300 bankroll who decides in advance that they won’t bet more than 5% ($25) per spin helps avoid chasing losses or rapidly depleting funds during unlucky streaks.

I’ve seen players get lulled into false security by frequent small wins with outside bets, only to chase losses during a bad streak and blow their bankroll. Discipline and bankroll management remain your best tools.

Remember that roulette is a game of chance, and even the "safest" bets carry risk. Always gamble responsibly, and never bet money you cannot afford to lose.

Table: Summary of Key Outside Bets Metrics

Try It Yourself

You’ve seen how outside bets cover large swaths of the roulette wheel, offering a smoother ride with more frequent payouts. To truly grasp their feel and evaluate how they fit your style, try placing these bets in our free roulette simulator.

Experiment with starting bankrolls and bet sizes on red/black, dozens, and columns. Notice how the steady wins keep your bankroll moving, but also how losses slowly chip away at it due to the house edge. This hands-on experience is invaluable before risking real money at the casino.

Our simulator allows you to test these bets across European, American, and French roulette wheels so you can see firsthand how the zero or double zero impacts your results. Understanding these dynamics helps you make smarter choices and enjoy roulette with more confidence.

For a guide on using simulators effectively, check out using roulette simulators testing systems.

Frequently Asked Questions

What are outside bets in roulette?

Outside bets are wagers placed on broad categories of numbers on the roulette table, such as red/black, odd/even, dozens, or columns, covering many numbers at once and offering higher chances to win but lower payouts.

Why are outside bets considered safer in roulette?

Because outside bets cover nearly half the numbers on the wheel, they have close to a 50% chance to win on each spin (less due to zeros), resulting in more frequent but smaller wins, which reduces volatility.

How does the house edge differ for outside bets across roulette variants?

European roulette has a house edge of 2.70% on outside bets, American roulette’s is higher at 5.26% due to the double zero, and French roulette with La Partage reduces the house edge on even money bets to about 1.35%.

Can betting systems improve my odds with outside bets?

No system can change the fundamental house edge in roulette. Betting systems like Martingale or D’Alembert may manage risk or bet progression but do not improve your expected return.

Are column and dozen bets better than even money bets?

They offer higher payouts (2:1) but cover fewer numbers (12 instead of 18), so they hit less often. The house edge remains the same, but these bets provide a balance between risk and reward.

Final Thoughts

Outside bets roulette gives you a practical way to cover large parts of the wheel with bets that pay off more frequently, smoothing out the rollercoaster of wins and losses. Choosing the right variant—preferably French or European roulette—can significantly affect your long-term results with these bets.

Remember, no betting system can beat the house edge, so focus on disciplined bankroll management and enjoy the strategic simplicity of outside bets. Next up, exploring inside bets overview roulette will reveal how higher-risk, higher-reward plays contrast with this more conservative approach.

Related articles:

• Inside Bets Overview Roulette
• European Vs American Vs French Roulette Differences
• Martingale System Guide