The Question Hides a Second Question
When someone asks whether roulette or craps has the worst odds, they are usually asking two different things at once. The first is which game takes a bigger cut of each wager on average. The second is which bet on the table is the most expensive to make. Those questions have different answers, and mixing them up is how a player walks away with a confident but wrong idea about what they were playing.
Roulette and craps are both negative-expectation games. The operator holds a mathematical advantage on every wager, built into the payout structure rather than added as a fee at the end. What changes from bet to bet is how large that advantage is. In craps, the gap between the best and worst bets on the same table is enormous. In roulette, the gap is smaller but still real, and one wheel design is more expensive than the other before you place a single chip.
How the Edge Is Built Into a Bet
A bet's house edge is the difference between the true odds of an event and the payout the table offers when it happens. True odds describe the actual probability. Payout odds describe what the operator pays. When the payout is short of the true odds, the missing slice stays with the house on average, across a very large number of repetitions.
Return to Player, or RTP, is the same relationship viewed from the other side. For the same bet under the same rule set, house edge and RTP sum to 100%. If a bet returns a theoretical RTP of R percent over the long run, its house edge is the remainder. Neither figure predicts a single session. Both describe what happens when the same wager is repeated enough times for the short-run noise to fade.
Roulette: The Wheel Design Sets the Floor
Roulette's bet menu looks varied, but almost every wager on the layout carries the same basic structure. A straight-up bet on one number pays a fixed multiple of the stake. A split, a street, a corner, a dozen, a column, and the even-money outside bets all pay less than the true odds of the event they cover. The shortfall is the house edge, and on a given wheel it is nearly uniform across the layout.
The wheel type matters more than the bet type. A European wheel has 37 pockets: the numbers 0 through 36, with a single zero. An American wheel has 38 pockets, adding a double zero alongside the single zero. That extra pocket changes the probability of every event on the layout without changing any payout. The result is a materially higher house edge on the American layout for the same wager.
| Wheel type | Pockets | Zero pockets | Effect on house edge |
|---|---|---|---|
| European | 37 | Single zero | Lower edge for the same bet |
| American | 38 | Single and double zero | Higher edge for the same bet |
There is one roulette bet that stands apart as worse than the rest, and it exists only on the American layout. The five-number bet covers 0, 00, 1, 2 and 3. It pays a fixed multiple of the stake, but the true odds are worse than the payout implies by a wider margin than any other bet on the table. If a player wants the worst bet in roulette, that is the one. On a European wheel, the closest equivalent does not exist.
Craps: The Table Contains Both Extremes
Craps is a different animal. The game is built around the pass line and the come-out roll, and the bets around that core vary wildly in how much they cost. Some craps wagers carry a house edge that is among the lowest available on any casino table. Others are so expensive that experienced players treat them as a tax on impatience.
The pass line bet itself is a reasonable wager in edge terms. Once a point is established, a player may also take odds behind the pass line, and that wager is paid at true odds with no house edge at all. It is the rare casino bet where the operator takes nothing on the additional money. The catch is that the odds bet requires a pass line bet first, and the pass line itself still carries its edge.
At the other end of the same table sit the proposition bets in the centre. These are one-roll wagers on specific outcomes: a particular total, a particular pair, or a particular combination on the next throw. They pay large multiples, which makes them attractive in the moment, but the true odds are far longer than the payout. The house edge on these bets is dramatically higher than on the pass line, and sometimes an order of magnitude higher.
| Bet type | Where it sits | How the edge compares |
|---|---|---|
| Pass line | Core game | Low edge relative to the table |
| Odds behind pass line | Behind the line, after a point | Paid at true odds; no house edge |
| Centre proposition bets | Middle of the layout | High edge; worst value on the table |
So the answer to "which game has the worst odds" depends on the bet. The worst roulette bet is worse than the pass line in craps. But the worst craps proposition bet is worse than almost anything on a roulette layout. A player who wants the cheapest possible wager can find it at the craps table. A player who wanders into the centre of the craps layout can find the most expensive bet in the room.
What RTP and Edge Do Not Tell You
House edge is a long-run average. It says nothing about the next spin, the next roll, or the next hour. A game with a low edge can still produce a brutal session, and a game with a high edge can still produce a winning one. The edge only asserts itself over a very large number of repetitions, and even then it describes a rate, not a schedule.
Volatility is the missing piece. Two bets can carry the same house edge and behave completely differently in the short run. A low-volatility bet returns small amounts often. A high-volatility bet returns nothing most of the time and a large amount occasionally. Neither changes the long-run rate of loss. Volatility changes what the path looks like while the edge does its quiet work.
One more factor matters more than most players expect: decisions per hour. Roulette and craps move at different speeds, and within each game the player controls some of that speed. Every wager is a fresh exposure to the house edge. The total theoretical cost of a session is the edge multiplied by the amount wagered, and the amount wagered is the product of stake size and number of bets. A player making many small bets can face the same total exposure as one making fewer large bets.
As an example, suppose a player makes 50 wagers in an hour at a fixed stake of 10 units each, for 500 units of total action. If the game's house edge were small, the expected loss for that hour would be a small fraction of the coin-in. If the same player made 100 wagers instead, the expected loss would double to 20 units, even though the stake and the edge never changed. The example uses a hypothetical edge to show the arithmetic; the player's own game carries the figure printed in its rules or information panel.
Why Betting Systems Do Not Change the Edge
Progression systems feel like they should work. The logic is seductive: after a loss, increase the stake so that the next win recovers what was lost and adds a small profit. After a win, reset. The problem is that the edge is applied to every wager independently. No ordering of stake sizes changes the probability of the next outcome.
What a progression does is redistribute outcomes. It replaces many small, frequent results with a pattern of small wins and occasional large losses. The total expected loss over the same amount of action is unchanged. A doubling progression on a negative-expectation game does not remove the edge; it concentrates the variance into the moments when the losing streak arrives, and the losing streak always arrives eventually because the game has no memory.
The same is true of any system that changes stake size based on past results. Past results do not influence future ones. The wheel and the dice do not know what happened before. A system can change the shape of a session, but it cannot change the rate at which the house edge accumulates.
Reading the Table Before You Bet
The practical skill is not memorising a single number. It is learning to read the layout and the information panel before money goes down. On a roulette table, the wheel type is visible at a glance: count the zero pockets. On a craps table, the proposition bets are printed in the centre with their payouts, and the pass line is printed on the outer edge. The payouts are fixed, and the true odds are derivable from the game's structure.
The operator's own documentation carries the RTP or house edge for each game where it is published. For table games, the figure is a property of the rule set rather than a setting the operator can adjust. For electronic versions, the game information panel shows the theoretical return. Reading that panel before playing is the single most reliable way to know what the edge is, rather than what a forum post claims it is.
FAQ
Is the worst bet in roulette worse than the worst bet in craps?
Not necessarily. The worst roulette bet, the five-number bet on an American wheel, is expensive, but the centre proposition bets on a craps table can carry an even higher house edge. The two games contain different ranges of bet quality, and the worst option in each is not directly comparable without checking the specific payouts printed on the layout.
Does the odds bet in craps really have no house edge?
Yes, when it is offered, the odds bet behind the pass line is paid at true odds, which means the operator takes no mathematical cut on that portion of the wager. It is only available after a point is established, and it requires a pass line bet first, which does carry an edge.
Can a betting system overcome the worst odds on these tables?
No. A progression system changes the size of each wager but not the probability of any outcome. The house edge applies to every bet independently, so the expected loss over a given amount of total action stays the same. Systems redistribute when losses occur rather than removing them.
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This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.