Two tables, two very different ways of building the edge
A craps table and a roulette wheel look like they belong to different species of gambling. One is loud, layered with dozens of bet types, and runs on dice. The other is quiet, circular, and runs on a spinning ball. Yet the question people usually mean when they ask which game has better odds is simpler than either table looks: on the bets I am going to place, how much of each wager does the house keep on average?
Neither game has a single answer to that question. Roulette contains several bets, and they do not all carry the same edge. Craps contains a much wider spread, from wagers with a small built-in advantage to wagers where the house keeps a large slice of every unit risked. Comparing the two games as whole objects misses the point. The useful comparison is bet against bet, under the rule set in front of you.
The edge is a rate, not a verdict on your session
House edge is the mathematical advantage the operator holds on a given game, expressed as a percentage of each wager. Return to Player, or RTP, is the complement: a theoretical percentage of total wagered money a game returns to players over a very large number of spins or hands. For the same bet under the same rule set, house edge and RTP sum to 100%. A bet with a small edge returns a large share of coin-in on average; a bet with a large edge returns less.
What the edge does not do is predict a single session. It is a long-run statistical average, not a per-session guarantee. A player can sit at a roulette table, place one number, and walk away with a large multiple of the stake. Another player can grind the lowest-edge bet on the craps layout for two hours and finish down. The edge describes what the game does to the aggregate of many wagers, not what the next spin or roll will do.
Where roulette puts its advantage
A European roulette wheel has 37 pockets: the numbers 0 through 36, with a single zero. An American wheel has 38 pockets, adding a double zero. The extra pocket increases the house edge on the American layout. That is the entire mechanism: the wheel pays most winning bets as if the zero pockets did not exist, while the zeros still count as losing spaces for those bets. The gap between the payout odds and the true odds of the event is the edge.
Roulette keeps the structure simple because most bets on the same wheel share the same arithmetic. A bet on red, on odd, on a single number, or on a column all lose to the zero pockets in the same way, which is why the edge on those bets is identical on a given wheel. The exception is the basket bet on the American layout, which covers a cluster of numbers including the zeros and carries a worse rate than the rest of the table. If the reader wants the exact percentage for the wheel in front of them, the game information panel or the operator's help page states it; the number is not something this article can supply for every venue.
Craps spreads its edges across the layout
Craps is a dice game built around the pass line and the come-out roll. Two six-sided dice produce 36 equally likely combinations, and the game's payouts are built around how many of those combinations produce each outcome. The critical difference from roulette is that different bet types on the same craps table carry materially different house edges. There is no single craps edge.
The pass line and come bets sit at the favourable end of the layout. The don't pass and don't come bets sit near them, with a slightly different structure because they win on some outcomes where the pass line loses. The free odds wager, where offered, is unusual in that it pays at true odds, meaning the operator holds no built-in advantage on that portion of the bet. Beyond those, the edge climbs sharply. Proposition bets in the centre of the layout, and many of the one-roll wagers, carry edges far larger than anything on the pass line. The table rules and the felt itself print the payouts; the edge follows from those payouts against the 36-combination dice maths.
| Comparison point | Roulette | Craps |
|---|---|---|
| Number of distinct bet types | Few, mostly sharing one edge on a given wheel | Many, with materially different edges across the layout |
| Where the edge comes from | Zero pockets that lose while payouts ignore them | Payouts set below true odds for each bet type |
| Lowest-edge region | Standard bets on a single-zero wheel | Pass line, come, don't pass, don't come, plus free odds where offered |
| Highest-edge region | The basket bet on a double-zero wheel | One-roll proposition bets in the centre of the felt |
| What changes between venues | Single-zero versus double-zero wheel | Which side bets are offered and at what payouts |
Decisions per hour change total exposure
The edge is a rate on each wager, but what the player experiences is a rate multiplied by how much money passes across the felt. Two games with identical edges can produce very different expected losses per hour because they move at different speeds. A roulette spin takes as long as the wheel takes; a crowded table slows it further. A craps roll can resolve several bets at once, but the pace depends on how many players are at the table and how long the dice take to move around it.
Suppose a player wagers 10 units per decision on a bet with a 2% edge, and the game produces 40 decisions per hour. The expected loss is 10 units times 40 decisions times 2%, which is 8 units per hour, as an example built from hypothetical inputs. The same 10-unit wager at 60 decisions per hour produces an expected loss of 12 units. The edge did not change; the exposure did. A player who wants to slow the arithmetic can choose a fuller table, a game with fewer decisions per hour, or smaller wagers. None of that changes the edge. It changes how many times the edge is applied.
Why a short session looks nothing like the average
The long-run average is a property of a very large number of independent wagers. A short session is a small sample, and small samples are dominated by variance. Volatility describes how payouts are distributed over time: high volatility means rarer but larger payouts, low volatility means more frequent but smaller ones. Volatility does not change a game's RTP. What it changes is how far any given session can wander from the average before the average reasserts itself.
Roulette and craps both contain high-variance bets. A single-number roulette wager pays a large multiple but hits rarely. A hardway bet in craps pays well but loses on most rolls. The player who wins a session on those bets has not beaten the edge; they have experienced the favourable tail of a distribution whose centre is still negative. The player who loses a session on a low-edge bet has not been cheated; they have experienced the unfavourable tail. Neither outcome contradicts the maths. Both are what the maths produces in small doses.
Progression systems redistribute, they do not remove
A common response to a losing session is to increase the next wager, on the logic that a win will recover the losses. The logic is arithmetically true in the narrow sense: a larger wager that wins returns more than a smaller one. What it does not do is change the probability that the wager wins. The edge on the next bet is the same as the edge on the previous bet, because the game has no memory and the payout structure has not changed.
What a progression system does is reshape the distribution of outcomes. Doubling after a loss, as an example, turns many small wins and one large loss into a different pattern: most sessions end with a small gain, and a minority end with a loss large enough to erase all the gains and more. The expected value of the sequence is the same as the expected value of flat betting, minus the extra edge paid on the larger wagers. The system has not removed the house advantage. It has concentrated the player's risk into fewer, larger decisions, and it has increased the total amount wagered, which increases the total expected loss in absolute terms.
So which game has better odds
The honest answer is that the question is under-specified. The best roulette bet on a single-zero wheel carries a smaller edge than the worst craps bet by a wide margin. The best craps bet, especially with free odds where the table offers them, carries a smaller edge than the best roulette bet on a double-zero wheel. The comparison that matters is between the specific wager the player intends to place and the specific wager they would place on the other game, under the rule set in front of them.
Read the layout before you bet. On roulette, check whether the wheel has one zero or two, and avoid the basket bet if the wheel is American. On craps, stay near the pass line or come area, and treat the centre proposition bets as what they are: high-edge wagers with large payouts and a large built-in disadvantage. The game with better odds is not a game. It is a bet.
FAQ
Is the pass line in craps better than any roulette bet?
On a double-zero roulette wheel, the pass line carries a smaller edge than the standard roulette bets. On a single-zero wheel, the comparison is much closer, and the exact percentages depend on the table's published payouts. Where a craps table offers free odds behind the pass line, that portion of the wager pays at true odds and carries no built-in house advantage, which no standard roulette bet matches.
Why do people say roulette is worse for players than craps?
Because roulette's standard bets all share one edge, and on an American wheel that edge is larger than the best craps bets by a meaningful margin. A roulette player has almost no way to select a better bet; a craps player does. But a craps player who wanders into the centre proposition bets can face edges far worse than anything on the roulette felt.
Does betting more on a losing streak improve my odds?
No. The probability of the next wager winning is unchanged by the previous results, so increasing the stake increases the amount at risk without improving the chance of winning. Progression systems change the shape of the session's outcomes, not the expected value, and they increase the total amount wagered, which increases expected loss.
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