Main page Rules
100/1 Roulette rules, from the layout to the result
100/1 Roulette plays quickly once you know the layout, and the layout is the only unfamiliar part. Here are the rules in the order you meet them.
The result
Each spin draws one of 105 positions at random: 1 to 100, or one of five green shapes. Reds and blacks alternate through the numbers; the shapes are green and belong to no colour, no parity and no group. The draw is from an RNG; there is no physical wheel.
The chip and the minimum
Chips are 10p. The spin requires at least £1 on the layout in total. Ten chips on one number, one on each of ten numbers, £1 on red: all fine. One 10p chip on its own: the spin button stays inactive until the total reaches £1.
The bets
| Bet | Covers | Pays |
|---|---|---|
| Straight-up (number or shape) | 1 | 100:1 |
| Split | 2 | 49:1 |
| 3-number | 3 | 32:1 |
| Corner | 4 | 24:1 |
| 5-number | 5 | 19:1 |
| 10-number row or column | 10 | 9:1 |
| 15-number shape line | 15 | 11:2 |
| 20-number block | 20 | 4:1 |
| Red / black, odd / even | 50 | 1:1 |
There are no 1–50 or 51–100 bets. The tenths (1–10, 11–20 and so on) stand in for dozens. The shape line covers a shape plus a row of numbers.
The shapes
When a shape is drawn, every red, black, odd, even and numeric group bet loses. A straight-up on that shape wins at 100:1; a shape line including it wins at 11:2. The five shapes together are the house's share, in the way a single zero is on a wheel, and five of 105 is a larger share than one of 37.
Settlement
Winners are paid at the posted odds with the stake returned; losers are collected. All bets settle on each spin; nothing carries over. On a shape, no half-back rule applies to anything.
The buttons
Repeat bet places last spin's chips. Clear last removes the most recent chip; clear all empties the layout. Turbo or skip shortens the spin animation. Coverage markers on some versions show which positions the current chips cover, which is useful on a 105-position layout where it is easy to lose track.
A sensible first session
£1 on red for fifty spins, which is £50 through the game and about £2.40 expected loss at the 4.76% edge. Then, if you want the 100:1 shot, ten chips on a number for a few dozen spins knowing that the average wait for a hit is 105 spins. Decide the spin count first; the turbo button makes a hundred spins pass in minutes.
Frequently asked
- What are the shapes in 100/1 Roulette?
Five green positions on the track, a circle, square, triangle, star and diamond, that act as the zeros. They lose every outside bet when drawn, and each can be backed as a straight-up at 100 to 1.
- Can I bet just 10p?
The chip is 10p but the spin needs £1 on the layout, so ten chips, on one bet or spread. A lone 10p bet will not start the spin.