RouletteRoulette is a casino and gambling game named after the French word meaning “small wheel”. In the game a croupier spins a wheel in one direction, then spins a ball in the opposite direction around a tilted circular surface running around the circumference of the wheel. The ball eventually falls on to the wheel and into one of 37 (in European roulette) or 38 (in American roulette) colored and numbered pockets on the wheel.

Albert Einstein is reputed to have stated, “You cannot beat a roulette table unless you steal money from it.” And indeed he was mathematically correct. Roulette is an absolute game of chance in which the house odds are stacked from 2-5% against you. Still, the little game I’ve embedded here is awfully fun to play!

How to Play

The Roulette wheel has pockets numbered from 1 to 36 alternating between red and black. They are not in numerical order around the wheel, and there are instances of consecutive numbers being the same color. There is a green pocket numbered 0, and in American roulette there is also a second green pocket marked 00.

The house average or house edge (also called the expected value) is the amount the player loses relative to any bet made, on average. If a player bets on a single number in the American game there is a probability of 1/38 that the player wins 35 times the bet, and a 37/38 chance that the player loses their bet. The expected value is:

-1*37/38 + 35*1/38 = -0.0526 (5.26% house edge)

For European roulette, a single number wins 1/37 and loses 36/37:

-1*36/37 + 35*1/37 = -0.0270 (2.70% house edge)

Roulette Odds Table


Bet name Winning spaces Payout Odds of winning
(against)
Expected value
(on a $1 bet)
0 0 35 to 1 37 to 1 -$0.053
00 00 35 to 1 37 to 1 -$0.053
1 1 35 to 1 37 to 1 -$0.053
2 2 35 to 1 37 to 1 -$0.053
36 36 35 to 1 37 to 1 -$0.053
Row 00 0, 00 17 to 1 18 to 1 -$0.053
Row 3 1, 2, 3 11 to 1 11.667 to 1 -$0.053
Row 6 4, 5, 6 11 to 1 11.667 to 1 -$0.053
Row 9 7, 8, 9 11 to 1 11.667 to 1 -$0.053
Row 36 34, 35, 36 11 to 1 11.667 to 1 -$0.053
Corner any number from the corner of any 4 numbers 8 to 1 8.5 to 1 -$0.053
2 Rows any number from two rows 5 to 1 5.33 to 1 -$0.053
five number bet 0, 00, 1, 2, 3 6 to 1 6.6 to 1 -$0.079
Column 1 1, 4, 7, …, 34 2 to 1 2.167 to 1 -$0.053
Column 2 2, 5, 8, …, 35 2 to 1 2.167 to 1 -$0.053
Column 3 3, 6, 9, …, 36 2 to 1 2.167 to 1 -$0.053
First 12 1, 2, 3, …, 12 2 to 1 2.167 to 1 -$0.053
Middle 12 13, 14, 15, …, 24 2 to 1 2.167 to 1 -$0.053
Last 12 25, 26, 27, …, 36 2 to 1 2.167 to 1 -$0.053
Odd 1, 3, 5, …, 35 1 to 1 1.111 to 1 -$0.053
Even 2, 4, 6, …, 36 1 to 1 1.111 to 1 -$0.053
Red 1, 3, 5, 7, 9, 12,
14, 16, 18, 19, 21, 23,
25, 27, 30, 32, 34, 36
1 to 1 1.111 to 1 -$0.053
Black 2, 4, 6, 8, 10, 11,
13, 15, 17, 20, 22, 24,
26, 28, 29, 31, 33, 35
1 to 1 1.111 to 1 -$0.053
1 to 18 1, 2, 3, …, 18 1 to 1 1.111 to 1 -$0.053
19 to 36 19, 20, 21, …, 36 1 to 1 1.111 to 1 -$0.053

Note also that 0 and 00 are neither odd nor even in this game.

The Story

In 2004, Ashley Revell of London sold all of his possessions, clothing included, and brought US$135,300 to the Plaza Hotel in Las Vegas and put it all on “Red” at the roulette table in a double-or-nothing bet. And here is the actual video of what happened:

So, if you’re feeling lucky, have a go at it yourself!

The Game

In order to play the game, grab the chips by clicking on them, then click again to place them on the spot on the table you want to bet on. You can bet on Red, Black, Even, Odd, or any individual number. You can also put multiple chips on different spots to spread out the risk. Refer to the odds table above to determine how much the payout will be for any given spot you choose on the table.

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