Australia

Keno — 10 Spot odds — every division, derived

Every figure on this page is calculated from the game's published rules. The operator's own odds page is linked below as verification — but the working is here, on this page.

The combinatorics

A standard entry picks 10 numbers from 80. The number of possible combinations is:

C(80, 10) = 1,646,492,110,120

Division odds

DivisionMatchWinning combinationsDerived oddsProbabilityPrizeOperator says
Match 1010 main184,7561 in 8,911,7111.122e-7Jackpot — minimum $1 million1 in 8,911,712
Match 99 main10,077,6001 in 163,3816.121e-6Fixed $10,000 per $1
Match 88 main222,966,9001 in 7,3840.0135%Fixed $580 per $1
Match 77 main2,652,734,4001 in 6210.1611%Fixed $50 per $1
Match 66 main18,900,732,6001 in 87.111.15%Fixed $6 per $1
Match 55 main84,675,282,0481 in 19.445.14%Fixed $4 per $1
Match 44 main242,559,401,7001 in 6.7914.73%Fixed $1 per $1

"Winning combinations" counts how many of the possible outcomes land in that division. "Operator says" is the operator's published figure — shown so you can check us against them (small differences are their rounding).

Odds of winning any prize

1 in 4.72

Sum of all division probabilities — usually the number the ads quote.

Odds of the top prize

1 in 8,911,711

One standard game. Two games doubles it — and it's still tiny.

How long are these odds? Winning the top prize is about as likely as calling 23.1 coin flips in a row correctly (223.1 8,911,711). If you bought one line every draw, at two draws a week you would expect one top-prize win roughly every 85,690 years.

Sources

Last verified: 2026-08-29