Gambling Guide
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Keno - special bets like Left/Right/Top/Bottom, and Edge
Introduction
Following are some keno variations I've seen around Vegas.
Left/Right/Top/Bottom
The Las Vegas Hilton offers a keno game in which the player chooses an entire half of a card. A ticket costs $5 and the player gets something back if at least 11 numbers fall in his half. The following return table shows a return of 67.53%.
Left/Right/Top/Bottom
| Catches | Probability | Pays | Return |
| 11 | 0.17880619 | 3 | 0.10728371 |
| 12 | 0.12153233 | 5 | 0.12153233 |
| 13 | 0.06345744 | 10 | 0.12691488 |
| 14 | 0.02519634 | 15 | 0.07558901 |
| 15 | 0.00748691 | 50 | 0.07486911 |
| 16 | 0.00162476 | 200 | 0.06499055 |
| 17 | 0.00024798 | 1000 | 0.04959533 |
| 18 | 0.00002502 | 6000 | 0.03001823 |
| 19 | 0.00000149 | 80000 | 0.02376612 |
| 20 | 0.00000004 | 100000 | 0.00077983 |
| total | 1 | 0.6753391 |
Edge
The Las Vegas Hilton offers a keno game in which the player chooses all 32 numbers on the edge of the ticket. A ticket costs $5 and the player gets something back if less 1 to 6 or more than 9 numbers chosen fall in the edge. The following return table shows a return of 55.06%.
Edge
| Catches | Probability | Pays | Return |
| 0 | 0.000004733857 | 0 | 0 |
| 1 | 0.000104471317 | 2000 | 0.04178853 |
| 2 | 0.001025560093 | 200 | 0.0410224 |
| 3 | 0.005954865058 | 20 | 0.02381946 |
| 4 | 0.022935534949 | 10 | 0.04587107 |
| 5 | 0.062273452467 | 5 | 0.06227345 |
| 6 | 0.123631118868 | 1 | 0.02472622 |
| 7 | 0.183680519462 | 0 | 0 |
| 8 | 0.207278363976 | 0 | 0 |
| 9 | 0.179267774249 | 0 | 0 |
| 10 | 0.119354597066 | 1 | 0.02387092 |
| 11 | 0.061207485675 | 5 | 0.06120749 |
| 12 | 0.024100447484 | 10 | 0.04820089 |
| 13 | 0.007234655905 | 25 | 0.03617328 |
| 14 | 0.001636410264 | 100 | 0.03272821 |
| 15 | 0.000274003579 | 800 | 0.04384057 |
| 16 | 0.000033082819 | 7500 | 0.04962423 |
| 17 | 0.000002767713 | 25000 | 0.01383856 |
| 18 | 0.000000150419 | 50000 | 0.00150419 |
| 19 | 0.000000004716 | 65000 | 0.00006131 |
| 20 | 0.000000000064 | 100000 | 0.00000128 |
| total | 1 | 0.55055207 |
Wynn Extra Million
At the Wynn for 25-cents the player can make an additional bet based on a 5-spot ticket. The bet pays according to the number of catches in the first five balls called. The following pay table shows the probabilities, pays, and return. The lower left cell shows a return of just under 7 cents. The overall return of the game is just under 7/25, or 27.996%. So the house edge is 72.004%!
Wynn Extra Million
| CATCH | PROBABILITY | PAYS | RETURN |
|---|---|---|---|
| 0 | 0.7179442 | 0 | 0 |
| 1 | 0.25279725 | 0 | 0 |
| 2 | 0.02808858 | 0.25 | 0.00702215 |
| 3 | 0.00115433 | 5 | 0.00577163 |
| 4 | 0.0000156 | 1000 | 0.01559899 |
| 5 | 0.00000004 | 1000000 | 0.04159731 |
| Total | 1 | 0.06999007 |
Go back to keno.
Go to keno appendix 2.
Written by:Michael Shackleford
