How to Play Keno: Rules & Odds
Keno is a lottery-style casino game with long odds. Learn how a draw works, the real odds of catching your numbers, and why more picks means a longer shot.
Keno is a lottery in casino form. You pick some numbers, the house draws twenty at random, and you are paid according to how many of your picks came up. There are no decisions to make once your ticket is filled in, so the only questions are how many numbers to pick and how much to bet. This guide explains how a draw works, the real odds behind the paytable, and why keno is one of the worst-odds games wherever you find it.
Table Edge is a free practice site: everything here uses practice chips with no cash value, and nothing in this guide guarantees a win.
How a game works
The board has the numbers 1 to 80. You choose a handful of them (each pick is called a spot), and place your bet. The house then draws 20 numbers at random with no repeats. Each of your picks that is drawn is a catch, and the more you catch, the more you are paid. Miss too many and you get nothing back.
A ticket with six picks is a "6-spot" ticket, and one with ten picks is a "10-spot".
Once you place your bet there is nothing more to decide. You can't hold, hit, or influence the draw in any way.
The math of a draw
A draw is a plain lottery: 20 numbers pulled from 80, without repeats. Whether a specific number of yours is drawn depends only on how many numbers you picked and how many numbers there are in total. It has nothing to do with "hot" or "cold" numbers, and the machine has no memory of past draws.
Mathematicians call this a hypergeometric distribution: the odds of drawing exactly *k* of your numbers from a fixed pool, without replacement.
With a one-spot ticket, 20 of the 80 numbers get drawn, so any single number has a 25% chance of hitting. That sounds close to a coin flip, but the game returns 3x your bet when it hits, where a fair bet on a 25% chance would return 4x. That gap is the house edge.
Why more picks means longer odds
Here are the exact odds of each result on a 10-spot ticket:
| Numbers caught (of 10) | Chance | Roughly 1 in |
|---|
| 0 | 4.58% | 22 |
| 1 | 17.96% | 6 |
| 2 | 29.53% | 3 |
| 3 | 26.74% | 4 |
| 4 | 14.73% | 7 |
| 5 | 5.14% | 19 |
| 6 | 1.15% | 87 |
| 7 | 0.16% | 621 |
| 8 | 0.014% | 7,384 |
| 9 | 0.0006% | 163,381 |
| 10 | 0.00001% | 8.9 million |
Only a quarter of the board is drawn, but catching all ten of your picks is astronomically rare, about 1 in 8.9 million. That is why the top prize on a 10-spot ticket can run into six figures. More picks means a wider spread between a modest partial match (which happens often) and catching everything (which almost never happens).
Some high-spot tickets also pay a small prize for catching none of your numbers, because missing everything is almost as rare as catching everything.
RTP: the number that matters
As with slots, the figure that matters is return to player (RTP): how much of each dollar bet is paid back over the long run. Every spot count on this site's board is tuned to roughly 70% to 77%, in the same range as slots and noticeably worse than blackjack or the pass line in craps. Real casino keno is famous for running some of the worst odds on the floor, often 60% to 75% depending on the house and the paytable, and this site's numbers sit in that real-world range on purpose.
Playing keno in an Australian club or pub
The core math is identical (20 numbers drawn from 80). What differs is the format. Australian club and pub keno runs as a continuous draw every few minutes rather than as an on-demand terminal, and the operator depends on the state. Prizes are fixed dollar amounts per spot count, not multipliers. The return to player is commonly cited at around 70% to 82%, depending on the venue and spot count. Different presentation, same basic math.
Is there a strategy?
No. Every number has exactly the same chance as every other number, so there is no better pick to learn. Patterns, birthdays, "lucky" numbers and numbers that haven't appeared recently are all the same. The only real decisions are how many spots to play and how much to bet, and both are bankroll questions, not strategy ones.
The casino myths page explains why past draws don't predict future ones, and the house edge calculator shows how keno compares with other games.
Money and mindset
Keno is slow-paced and the draws come at regular intervals, which makes it easy to keep playing without noticing how much you have spent. Set a limit before you start and stay within it. If gambling is affecting your life, you can reach the National Problem Gambling Helpline at 1-800-522-4700.
Quick recap
- Pick numbers from 1 to 80, and the house draws 20.
- Every number has the same 25% chance of being drawn, and nothing makes a number "due".
- More spots mean a bigger top prize and far longer odds of getting it.
- Keno returns roughly 60% to 80% of what is wagered, one of the worst rates on the floor.
- There is no strategy, only a limit you set for yourself.
Ready to see it for yourself? Try the paytable and RTP page, then play the free keno game. To compare keno with other games, see the best odds in the casino.
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