The 9K Spin is the one game in the 9K Club room. It is a wheel with ten slices, numbered 0 to 9, and a gold pointer at the top. You choose what you think the pointer will land on, set a chip, and spin. When the wheel stops, the number under the pointer is the ball for that round.
1. The Wheel and Its Colours
Each number has a fixed colour. The rule is short enough to learn in one go:
| Ball | Colour | Size |
|---|---|---|
| 0 | Red + Violet | Small |
| 1, 3 | Green | Small |
| 2, 4 | Red | Small |
| 5 | Green + Violet | Big |
| 6, 8 | Red | Big |
| 7, 9 | Green | Big |
Around the rim the slices run 0, 7, 2, 9, 4, 5, 6, 1, 8, 3 so that Red and Green take turns. The order is decoration: it does not make any number more or less likely.
2. The Three Kinds of Pick
Colour
Pick Green, Red or Violet. Green is correct on 1, 3, 5, 7 and 9; Red on 0, 2, 4, 6 and 8; Violet only on 0 and 5.
Big or Small
Big covers the five high numbers, 5 to 9. Small covers the five low numbers, 0 to 4. Colour plays no part here.
Number
Pick one number from 0 to 9. Only that exact ball counts.
3. What Each Pick Returns
When a pick is correct you get your chip back multiplied by the figure below. When it is not, the chip stays with the wheel.
| Pick | Correct on | Returns |
|---|---|---|
| Green | 1, 3, 7, 9 / 5 | ร2 / ร1.5 |
| Red | 2, 4, 6, 8 / 0 | ร2 / ร1.5 |
| Violet | 0, 5 | ร4.5 |
| Big | 5โ9 | ร2 |
| Small | 0โ4 | ร2 |
| Number | That number | ร9 |
4. Three Worked Rounds
- Red, 100-coin chip, ball 6. 6 is Red, so the pick is correct: 100 ร 2 = 200 coins come back. Your balance goes from 1,000 to 900 when you spin, then to 1,100.
- Green, 50-coin chip, ball 5. 5 is Green and Violet, so Green returns ร1.5: 75 coins come back. You end the round 25 coins up.
- Number 3, 10-coin chip, ball 8. Not your number, so nothing comes back. You are 10 coins down, and the next spin is a fresh start.
5. Chances and the Long Run
Every ball has the same one-in-ten chance on every spin. Multiply each pick's chance by what it returns and you get the average share of coins that comes back over many rounds:
- Big or Small: 5 in 10 ร 2 = 100% back on average.
- Green or Red: (4 in 10 ร 2) + (1 in 10 ร 1.5) = 95%.
- Violet: 2 in 10 ร 4.5 = 90%.
- One number: 1 in 10 ร 9 = 90%.
So no pick grows your coins in the long run, and the bolder picks shrink them slightly faster. Short runs swing a lot either way, which is exactly why a streak tells you nothing about the next ball.
6. How the Ball Is Drawn
The draw happens on your own device the moment you press Spin. The game asks the browser's secure random generator (the same one websites use for security keys) for a random byte. Bytes run from 0 to 255; the game keeps the first byte under 250 and takes its last digit, so each of the ten balls gets exactly 25 of the 250 accepted values. Throwing away 250โ255 matters: without it, balls 0 to 5 would come up very slightly more often than 6 to 9.
The wheel animation is then steered to stop on that ball. Nothing about your earlier picks, your balance or the time of day feeds into the draw.
7. Coins, Refills and Starting Over
- You start with 1,000 practice coins. They have no cash value and cannot be bought, sent or cashed out.
- When your balance is too low for the chip you chose, a Refill button adds 1,000 coins, as often as you need.
- Start over resets coins, rounds, streaks and history to a clean 1,000.
- Everything is saved in your browser only. A private window or cleared site data begins a new session.
Ready? The wheel is on the 9kclubs.org start page.