Straight-up
Place the chip inside the cell marked 17. It wins only on 17.
1/37 · 2.70% chance. A winning 1-unit bet returns 36 units.
European roulette · Single zero
Roulette
Bets & Payouts
Roulette bets range from a single number to groups of eighteen. The chip’s position determines which outcomes win; the payout ratio determines the profit on a winning stake.
Explore the betting atlasCorner · 17, 18, 20, 21Four winning outcomes · 8:1 net payout
01 / Position determines coverage
One number.
Or eighteen.
A fair European wheel has 37 equally likely outcomes: 1–36 and zero. Inside bets cover individual numbers or small groups. Outside bets cover larger groups, such as Red or a dozen. More covered numbers win more often, but each win pays less.
Both bets have the same 2.70% house edge under standard single-zero rules: an expected loss of about 2.70 units per 100 units wagered. Actual results vary. Covering more numbers increases the chance of a single win, without improving that average return.
The betting atlas
The betting table.
Select a bet, click a numbered cell, or choose a + marker for a shared betting position.
Swipe the table sideways to reach every position, or use the bet selectors.
Straight-up · 17
Place the chip inside the cell marked 17.
Winning probability2.70%1 / 37 outcomes
Net payout35:1Original stake also returned
Covered numbers17
Trio and First Four bets are available only at tables that offer them.
Demo stake
If this bet wins 36 returned+35 net profit
If it loses 0 returned−1 net result
Inside bets
The border is
part of the bet.
A chip inside a cell covers one number. A chip on a shared border or intersection covers the adjoining numbers. A street covers one group of three consecutive numbers: 1–3, 4–6 and so on. A six line covers two neighbouring streets.
Split
17:1net payout2 covered numbers
17 · 20Split
Place the chip on the shared border between 17 and 20. It wins on 17, 20.
2/37 · 5.41% chance. A winning 1-unit bet returns 18 units.
Street
Place the chip on the bottom edge of the cell marked 16. It wins on 16, 17, 18.
3/37 · 8.11% chance. A winning 1-unit bet returns 12 units.
Corner
Place the chip at the intersection shared by 17, 18, 20 and 21. It wins on 17, 18, 20, 21.
4/37 · 10.81% chance. A winning 1-unit bet returns 9 units.
Six Line / Double Street
Place the chip on the bottom edge of the grid, where the 16–18 and 19–21 streets meet. It wins on 16, 17, 18, 19, 20, 21.
6/37 · 16.22% chance. A winning 1-unit bet returns 6 units.
A split can join cells side by side, such as 17 and 20, or one above the other, such as 16 and 17. A corner must cover the four cells that meet at a single intersection.
04 / Outside bets
A wider field.
A smaller return.
Place the chip in the labelled box outside the numbered cells. These bets cover either 18 or 12 outcomes. Zero belongs to none of them.
Red
48.65% chance per spin
European wheel order · schematic
Zero is excluded from every ordinary outside bet.
18numbers
Even-money bets · 1:1
Red and Black each cover 18 numbers. Odd and Even cover the odd or even numbers from 1 to 36. Low covers 1–18; High covers 19–36.
Each wins on 18/37 outcomes, approximately 48.65%. A winning 5-unit bet returns 10 units: the 5-unit stake and 5 units of profit.
Select Black on the layout12numbers
Dozens & columns · 2:1
Dozens cover 1–12, 13–24 or 25–36. Column bets cover every third number: 1, 4, 7…34; 2, 5, 8…35; or 3, 6, 9…36.
Each wins on 12/37 outcomes, approximately 32.43%. A winning 5-unit bet returns 15 units: the stake and 10 units of profit.
Select Column 205 / Payouts explained
35:1 profit.
36 times your stake returned.
The payout ratio states the net winnings on a successful bet. The total return includes those winnings and the original winning stake.
Total returned180from 5 units on Straight-up 17
5Stake · 535 chips × 5 units
Stake returned5
+Net profit175
=Total return180
- Straight-up 17 · 35:1
- 5 units staked + 175 profit = 180 returned
- Red · 1:1
- 5 units staked + 5 profit = 10 returned
- Corner · 8:1
- 5 units staked + 40 profit = 45 returned
A losing 5-unit bet returns zero and has a net result of −5 units under standard rules. La Partage changes that settlement for eligible even-money bets when zero lands.
06 / Single-zero reference
Bets, probabilities
& payouts.
Winning probability is the number of covered outcomes divided by 37. Net payouts exclude the original stake. A winning 1-unit bet returns the net winnings plus that 1-unit stake.
| Bet / placement | Covered | Win chance | Net payout | Total returned |
|---|---|---|---|---|
Straight-upAny single number, including zero | 1of 37 | 2.70%1/37 | 35:1 | 36units |
SplitPlace the chip on the shared border between 17 and 20.17 · 20 | 2of 37 | 5.41%2/37 | 17:1 | 18units |
StreetPlace the chip on the bottom edge of the cell marked 16.16 · 17 · 18 | 3of 37 | 8.11%3/37 | 11:1 | 12units |
CornerPlace the chip at the intersection shared by 17, 18, 20 and 21.17 · 18 · 20 · 21 | 4of 37 | 10.81%4/37 | 8:1 | 9units |
Six Line / Double StreetPlace the chip on the bottom edge of the grid, where the 16–18 and 19–21 streets meet.16 · 17 · 18 · 19 · 20 · 21 | 6of 37 | 16.22%6/37 | 5:1 | 6units |
| Bet / placement | Covered | Win chance | Net payout | Total returned |
|---|---|---|---|---|
Red / Black18 red numbers or 18 black numbers | 18of 37 | 48.65%18/37 | 1:1 | 2units |
Odd / EvenOdd or even numbers from 1 to 36 | 18of 37 | 48.65%18/37 | 1:1 | 2units |
Low / High1–18 or 19–36 | 18of 37 | 48.65%18/37 | 1:1 | 2units |
DozensFirst: 1–12 · Second: 13–24 · Third: 25–36 | 12of 37 | 32.43%12/37 | 2:1 | 3units |
ColumnsFirst: 1, 4…34 · Second: 2, 5…35 · Third: 3, 6…36 | 12of 37 | 32.43%12/37 | 2:1 | 3units |
| Bet / placement | Covered | Win chance | Net payout | Total returned |
|---|---|---|---|---|
Trio0 / 1 / 2 or 0 / 2 / 3 | 3of 37 | 8.11%3/37 | 11:1 | 12units |
First Four0 / 1 / 2 / 3 | 4of 37 | 10.81%4/37 | 8:1 | 9units |
Net payout is profit. Total returned includes the original winning stake. All ordinary European bets have a 2.70% house edge.
07 / Zero & exceptions
When zero lands.
Zero is neither red nor black and is excluded from all ordinary outside bets. Red/Black, Odd/Even, Low/High, dozens and columns lose when zero lands under standard European rules. A straight-up bet on zero wins at 35:1.
10 units on Red.
One zero. Two rules.
Winning number0
Returned to you0units
Retained by casino10units
The full 10-unit stake is lost.
Net result −10
La Partage returns half the stake on eligible even-money bets when zero lands: 5 of these 10 units. It applies only at tables offering the rule; inside bets, dozens and columns are excluded.
Trio & First Four
Where offered, a trio covers 0/1/2 or 0/2/3 at 11:1. The chip sits at their common junction with zero. First Four covers 0/1/2/3 at 8:1, from the outer corner of zero and the first street.
Availability depends on the table. These single-zero combinations are separate from the American five-number bet.
Explore the zero positionsEn Prison
En Prison holds an eligible even-money stake after zero. If a subsequent spin wins the held bet, the original stake is returned without profit. A nonzero losing result forfeits the stake. The treatment of another zero depends on the table’s rules.
Compare the roulette variantsThe American five-number bet
On appropriate double-zero layouts, 0, 00, 1, 2 and 3 form a five-number bet paying 6:1. Its chance is 5/38, approximately 13.16%.
A winning 1-unit bet returns 7 units. Its house edge is 7.89%, above the 5.26% of ordinary American bets. It is not a European First Four wager.
08 / Putting the numbers together
One bet wins.
You can still lose overall.
Winning number32
Red wins.
The bet on 17 loses.
5 on Red + 1 on 17
- Total staked
- 6
- Total returned
- 10
- Net result
- +4
1 on Red + 10 on 17
- Total staked
- 11
- Total returned
- 2
- Net result
- −9
Both Red bets win and return twice their stake. The larger losing bet on 17 turns the second combination into a net loss.
If black 20 landed instead, both bets in the first combination would lose: −6 units net.
One house edge, different coverage.
363797.30%theoretical return
Standard European payouts follow 36 ÷ covered numbers − 1. Their theoretical return is 36/37 of the stake, or 97.30%, leaving a 1/37 house edge of approximately 2.70%.
Combining standard European wagers changes the pattern of wins and losses. Each staked unit still has the same 1/37 expected loss. Ten units wagered have an expected loss of approximately 0.27 units; a particular spin can finish well above or below that average.
35:1 payout.
36:1 odds against.
A straight-up bet has 1 winning pocket and 36 losing pockets, so its winning probability is 1/37 and the odds against winning are 36:1. It pays 35:1 in net profit. Payout odds state the profit for each unit staked; winning probability is the share of outcomes that win.
Same payouts.
One extra pocket.
The usual inside and outside bets pay the same ratios in European and American roulette. Adding 00 makes 38 pockets: a straight-up win becomes 1/38, about 2.63%, rather than 1/37.
Standard American bets have a 5.26% house edge; the five-number bet is an exception with a higher edge.