The Wheel That Changes the Odds
You sit down at a roulette table and the first thing you notice is the wheel. On an American layout, that wheel has 38 pockets, not 37. The numbers run 0 through 36, but there is an extra green pocket marked 00 sitting opposite the single 0. That one additional pocket is the entire reason American roulette plays differently from the European version, and it is the first thing to understand before you put a chip down.
The table felt mirrors the wheel. The numbered boxes are arranged in three columns of twelve, with the 0 and 00 sitting at the top of the layout. You place chips on the felt to indicate which number, group of numbers, colour, or range you are betting on. The wheel spins one way, the small white ball travels the other, and where the ball lands decides everything.
Roulette is a game of pure chance. No decision you make after the ball starts moving changes anything. What you control is which bets you place before the spin, and those bets carry very different mathematical edges.
What You Are Trying to Do
The objective is simple: predict where the ball will land. You do not need to beat another player, and there is no dealer hand to compare against. You bet on a number, a colour, a range, or a pattern, and if the ball settles in a pocket that matches your bet, you win. If it does not, the house takes your stake.
Because the wheel has 38 pockets but most bets pay as if it had 36, the casino keeps a built-in advantage on every spin. That advantage is larger on an American wheel than on a European one, and it is not spread evenly across all bets. Some bets return more of your wager over time than others, and knowing which is which is the most useful thing a new player can learn.
From Buy-In to Settlement: One Round
You buy in at the table. You place cash on the felt, and the dealer exchanges it for roulette chips. These chips are not the standard casino chips used at blackjack or craps; roulette chips are often unmarked with a value and come in a colour unique to you at that table, so the dealer can tell your bets apart from the next player's. Tell the dealer what denomination you want each chip to be worth when you buy in.
Once you have chips, you place them on the layout. You can bet on a single number by putting a chip entirely inside that number's box. You can bet on groups of numbers by placing chips on the lines between boxes, on the corners where four boxes meet, or on the outside areas marked for red, black, odd, even, low (1-18), high (19-36), dozens, and columns. The dealer will announce when betting is closing, usually with a phrase like "no more bets."
The dealer spins the wheel and releases the ball. The ball loses momentum, drops into a pocket, and the dealer places a marker on the winning number on the felt. Losing bets are swept off the layout first. Winning bets are then paid according to the odds for that bet type. Your original chip stays on a winning number unless you pick it up; the payout is added next to it. When you are finished, you tell the dealer you want to colour up, and your roulette chips are exchanged back for standard casino chips you can take to the cashier.
Inside Bets: The Numbers Themselves
Inside bets are wagers placed on the numbered grid itself. They pay more because they are harder to hit. A straight-up bet on a single number pays 35 to 1, but with 38 pockets, the true odds of hitting are 37 to 1 against. That gap between the payout and the true odds is the house edge, and on an American wheel it sits at the same rate for most inside bets.
| Bet | What It Covers | Payout | How It Is Placed |
|---|---|---|---|
| Straight up | One single number | 35 to 1 | Chip fully inside the number's box |
| Split | Two adjacent numbers | 17 to 1 | Chip on the line between two boxes |
| Street | Three numbers in a row | 11 to 1 | Chip on the outer edge of a row |
| Corner | Four numbers meeting at a corner | 8 to 1 | Chip on the intersection of four boxes |
| Five-number | 0, 00, 1, 2, 3 | 6 to 1 | Chip on the corner shared by 0 and 1 |
| Six line | Six numbers across two rows | 5 to 1 | Chip on the outer corner of two rows |
The five-number bet deserves special attention. It is the only wager on an American table that carries a worse edge than every other bet. It covers 0, 00, 1, 2, and 3, and it pays 6 to 1. On a 38-pocket wheel, that payout is short by more than any other standard bet, which is why experienced players avoid it entirely.
Outside Bets: Lower Payouts, Different Rhythm
Outside bets sit around the perimeter of the number grid. They cover larger groups and pay less, but they hit more often. The even-money bets are red or black, odd or even, and low or high. Each covers 18 numbers. A win pays 1 to 1, meaning you double your stake. The dozen and column bets each cover 12 numbers and pay 2 to 1.
| Bet | What It Covers | Payout | Notes |
|---|---|---|---|
| Red or black | 18 pockets of one colour | 1 to 1 | 0 and 00 are green and lose on both |
| Odd or even | 18 numbers | 1 to 1 | 0 and 00 lose on both |
| Low or high | 1-18 or 19-36 | 1 to 1 | 0 and 00 lose on both |
| Dozen | 12 numbers in a block | 2 to 1 | First, second, or third dozen |
| Column | 12 numbers in a vertical line | 2 to 1 | Bet placed at the foot of a column |
On an American wheel, every outside bet loses when the ball lands in 0 or 00. That is what makes the double-zero layout more expensive than a single-zero wheel: the green pockets are not covered by red, black, odd, even, low, or high, and they are not in any dozen or column. The extra zero means two losing pockets instead of one on every even-money spin.
How the Double Zero Changes the Math
House edge and RTP are complements: they sum to 100% for the same bet under the same rule set. On a European wheel with 37 pockets, a straight-up bet pays 35 to 1 against true odds of 36 to 1. On an American wheel with 38 pockets, the same bet pays 35 to 1 against true odds of 37 to 1. The payout did not change, but the wheel got worse for the player.
That difference applies across the board. An even-money bet on a single-zero wheel loses on one green pocket; on an American wheel it loses on two. The result is that the expected loss per unit wagered is higher on every bet, and the five-number bet is higher still. Nothing about a betting pattern, a progression, or a session length changes that built-in rate. The wheel does not remember previous spins, and no pocket becomes more likely because it has not hit recently.
What a Strategy Chart Can and Cannot Do
Roulette has no decision points after the bet is placed, so there is no strategy chart in the sense that blackjack has one. What exists instead is a simple ranking of bets by their house edge. On an American wheel, the five-number bet is the worst, and the remaining inside and outside bets share the same edge except for the five-number exception. A player who wants to minimise expected loss per unit wagered avoids the five-number bet and understands that every other bet loses at the same rate over the long run.
What changes between bets is not the edge but the variance. A straight-up number pays 35 to 1 and hits rarely, so a session on single numbers is volatile. An even-money bet hits close to half the time and produces a flatter sequence of small wins and losses. Neither is a way to beat the wheel; they are different distributions of the same expected loss.
Procedural Mistakes That Cost New Players
The first mistake is betting late. Once the dealer calls no more bets, any chip placed on the layout is too late, and a late bet on a winning number will not be paid. The second is touching chips after the result is announced. The dealer sweeps losing bets in a specific order, and moving a chip after the ball drops creates a dispute that is always resolved in the house's favour. Keep your hands off the felt once the ball is in motion.
The third mistake is misreading the table minimums. Roulette tables often quote a minimum per spin, and some outside bets require a minimum that is higher than the inside minimum. Ask the dealer what the minimum applies to before you buy in, and do not assume a chip on red and a chip on black cancels out. It does not: on an American wheel, both lose when 0 or 00 hits.
FAQ
Is American roulette worse for the player than European roulette?
Yes, on the same bet type. The extra 00 pocket increases the house edge on every wager because the payouts are identical but the wheel has one more losing pocket. The difference is structural, not a matter of luck or table conditions.
Can I bet on 0 and 00 together?
You can place a split bet on the line between 0 and 00, which pays 17 to 1. You can also cover them as part of the five-number bet, but that bet carries a worse edge than any other standard wager on the table.
Do outside bets ever cover the zero pockets?
No. On an American wheel, the 0 and 00 are green and are not included in red, black, odd, even, low, or high bets. They are also outside the dozens and columns. Every outside bet loses when either green pocket hits.
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