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For many players, the even-money bets are the heart of roulette: red or black, odd or even, high or low. They are the simplest wagers on the table, offering close to a fifty-fifty shot and paying out at one to one. Their straightforward nature makes them the natural starting point for newcomers and a steady favourite for experienced players alike. Yet there is a little more to them than meets the eye, particularly when it comes to the house edge. This closer look unpacks how these popular bets really work.
What counts as an even-money bet
Even-money bets are those that pay out the same amount you wagered, doubling your stake when they land. On the roulette layout, these are the red or black, odd or even, and high or low options. Each covers roughly half the numbers on the wheel, which is why they come so close to an even chance. Their one-to-one payout reflects this near-equal probability. Because they are so simple to understand and offer frequent wins, they remain the most accessible bets in the game.
Red or black
Betting on red or black is perhaps the most iconic roulette wager of all. The wheel’s numbers are split evenly between the two colours, so you are essentially calling a coin flip with each spin. Winning doubles your money, and the simplicity means you can follow the action easily. Many beginners start here because there is nothing complicated to learn. The colour bet captures the pure, hopeful thrill of roulette better than almost any other wager on the table.
Odd or even and high or low
Alongside the colour bet sit two other even-money options. Odd or even lets you back whether the winning number will be an odd or even figure, again covering nearly half the wheel. High or low splits the numbers into the lower and upper halves of the range, letting you bet on which group the ball lands in. All three even-money bets carry the same odds and the same payout, so the choice between them is largely a matter of preference. Some players even combine them, though doing so does not change the underlying maths.
The catch: the green zero
Here is where these bets fall just short of a true coin flip. The wheel includes a green zero, and on some wheels a double zero, which belongs to none of the even-money categories. When the ball lands on zero, all even-money bets lose, which is precisely how the house gains its edge. This is why red and black, despite appearances, do not offer a genuine fifty-fifty chance. The single zero gives the house its advantage, and the double zero doubles it, so the wheel you play on matters.
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Single zero versus double zero
Because the zero is what gives the house its edge, the type of wheel you play makes a real difference. European roulette features a single green zero, giving a house edge of around two and a half per cent on even-money bets. American roulette adds a second double-zero pocket, which roughly doubles that edge. For players who want the best value, the single-zero wheel is clearly the smarter choice. Always check which version you are playing, as the difference adds up over many spins.
Why these bets appeal
Even-money bets are popular for good reason. They win often enough to keep a session lively, they are easy to grasp, and they let your bankroll last longer than riskier single-number bets. The frequent small wins provide steady entertainment without the wild swings of long-shot wagers. For players who enjoy a relaxed, sustained session rather than chasing a big payout, even-money bets are ideal. Their gentle rhythm is a large part of roulette’s enduring charm.
Playing them wisely
Even-money bets are a sound way to enjoy roulette, but they are not a route to guaranteed profit. The green zero ensures the house keeps its edge no matter how you bet, so no pattern of red and black will overcome it. Stick to single-zero wheels where you can, set a firm budget, and treat your stake as the price of an enjoyable evening. Never chase losses by escalating your bets after a bad run. Played with realistic expectations, these simple bets offer some of the most relaxed fun on the casino floor.