Casino Odds On Slot Machines
- Casino Odds On Slot Machines Play
- Casino Odds On Slot Machines Machine
- Casino Odds On Slot Machines Spin
- Casino Odds On Slot Machines Wins
- Casino Odds On Slot Machines Win
- Casino Odds On Slot Machines
The difference between the odds of winning and the payout odds is where the casino makes its money. How Slot Machines Work Now Modern slot machines use a computer program called a random number generator to determine the outcomes of the various spins of the reels. Attempting to pinpoint the odds for slot machines is a daunting task. With such a variety of machines and games available, the odds can vary a great deal. Generally slots odds are expressed in the form of a payback percentage. The closer to 100%, the better for players. There are also six Indian casinos which are limited by law to the following maximum bet limits: blackjack-$100 (two tables in a casino may have limits up to $250), craps-$60, roulette-$50, slots/video poker-$25 and poker-$50 per bet, per round with a maximum of three rounds. Slots: Odds of Winning Around 1 in 49,836,032 You play slots by putting money into a slot machine and pulling a lever or pushing a button to spin a wheel. Depending on where the wheel lands, you win or lose. Slot machines have various odds of winning, and the odds are printed on each machine. Although every casino player loves to play and win, we must say that beating the odds at any casino is a process. Some days are going to be way better than others. If you are going to play casino games to win money, you will hardly achieve it. Don’t focus too much on the rewards. Instead, focus on improving your skills.
- Appendices
- Slots Analysis
- Miscellaneous
Introduction
The following table ranks the Las Vegas casinos according to the looseness of their video display reeled nickel slot machines. The returns are based on a sampling of five different types of machines. The data collected goes back as far as October 2001 so the information is a bit dated.
Las Vegas 5 Cent Slot Survey
| Rank | Casino | Average Return |
|---|---|---|
| 1 | Palms | 93.42% |
| 2 | Gold Coast | 92.84% |
| 3 | Sahara | 92.81% |
| 4 (tie) | Bourbon Street | 92.63% |
| 4 (tie) | Imperial Palace | 92.63% |
| 4 (tie) | Slots a Fun | 92.63% |
| 7 | Key Largo | 92.60% |
| 8 | Western | 92.57% |
| 9 | Ellis Island | 92.56% |
| 10 | El Cortez | 92.56% |
| 11 | Orleans | 92.56% |
| 12 | Circus Circus | 92.56% |
| 13 | Gold Spike | 92.55% |
| 14 | Fitzgeralds | 92.54% |
| 15 | Fiesta - Rancho | 92.53% |
| 16 | Arizona Charlie's East | 92.51% |
| 17 | Barbary Coast | 92.50% |
| 18 | Terrible's | 92.49% |
| 19 | Arizona Charlie's | 92.49% |
| 20 | Hard Rock | 92.47% |
| 21 | Town Hall | 92.47% |
| 22 | Longhorn | 92.47% |
| 23 | Riviera | 92.23% |
| 24 | California | 92.14% |
| 25 | Lady Luck | 92.10% |
| 26 | Nevada Palace | 92.06% |
| 27 | Plaza | 91.94% |
| 28 | Luxor | 91.92% |
| 29 | Paris | 91.92% |
| 30 | San Remo | 91.88% |
| 31 | Excalibur | 91.84% |
| 32 | Palace Station | 91.84% |
| 33 | Ballys | 91.82% |
| 34 | Las Vegas Club | 91.76% |
| 35 | Four Queens | 91.75% |
| 36 | Texas Station | 91.71% |
| 37 | Casino Royale | 91.67% |
| 38 | Boulder Station | 91.55% |
| 39 | Aladdin | 91.5% |
| 40 | O'sheas | 91.48% |
| 41 | Hilton | 91.40% |
| 42 | Boardwalk | 91.28% |
| 43 | New York New York | 90.99% |
| 44 | Horseshoe | 90.96% |
| 45 | Sam's Town | 90.89% |
| 46 | Santa Fe Station | 90.87% |
| 47 | Flamingo | 90.86% |
| 48 | Golden Nugget | 90.85% |
| 49 | Stratosphere | 90.8% |
| 50 | Tropicana | 90.71% |
| 51 | Golden Gate | 90.64% |
| 52 | Silverton | 90.57% |
| 53 | Main Street Station | 90.56% |
| 54 | Westward Ho | 90.40% |
| 55 | Fremont | 90.37% |
| 56 | Castaways | 90.36% |
| 57 | Monte Carlo | 90.24% |
| 58 | Stardust | 89.97% |
| 59 | Frontier | 89.91% |
| 60 | MGM Grand | 89.81% |
| 61 | Harrahs | 89.32% |
| 62 | Treasure Island | 89.32% |
| 63 | Mirage | 89.3% |
| 64 | Caesars Palace | 89.05% |
| 65 | Mandalay Bay | 88.87% |
| 66 | Rio | 88.72% |
| 67 | La Bayou | 88.26% |
| 68 | Mermaids | 88.26% |
| 69 | Bellagio | 87.42% |
| 70 | Venetian | 86.66% |
| 71 | Airport | 85.02% |
Excluded Casinos
The Suncoast and Rampart Casino in Summerlin do not allow playing slots and taking notes at the same time. I can not include any casino that prohibits the method in which I gather data.
Location Averages
The next table shows the average return by location.
Returns by Region
| Location | Average Return |
|---|---|
| Off strip | 92.07% |
| Downtown | 91.66% |
| Strip | 91.47% |
| Total | 91.74% |
The above sign can be found across the street from the Palms. Although I did the study Anthony Curtis published it in the LasVegas Advisor, which is how it become well known. The'...' in the sign encompases quite a bit of information,which was conveniently left off the sign. Actually the study only says that the Palms had the lowest nickel video slotsof the casinos surveyed in Las Vegas. The small print at thebottom says, 'Independent study conducted between November2001-February 2002 on Austin Powers, Fortune Cookie, Reel'em In, and Wheel of Fortune games. They left off LeopardSpots, and the study began in October.
Observations
There seemed to be no truth behind slot placement myths. Machines on the end of a bank did no better on average than those in the middle. There was also no correlation between return and proximity to such things as the main door, table game pit, high traffic areas, and low traffic areas.
Most casinos were very consistent in their slot returns.If one nickel machine had a return of x% then all others like it also returned x%. However some casinos did mix up loose and tight machines, most notably Treasure Island and the California casinos.
Methodology
A kind and anonymous source provided me with par sheets for the games in question. The EPROM (Erasable Programmable Read Only Memory) chip is what tells the machine the order of the symbols on the reel, in some cases how the stops are weighted, how much each winning combination pays, and any other pertinent information about how much the machine pays.It is up to the slot manager to select which EPROM chip to order according to the return percentage desired. On atypical game there might be about 8 different possible return percentages, ranging from about 85% to 98%.
Each of the different par sheets has five sets of distinct reels. On video display slots the stops are not weighted; in other words all stops are equally likely. The distribution of each symbol on each reel is what determines the theoretical return of the machine. For example a higher paying machine may have more of the higher paying symbols.
On the machine itself three consecutive symbols arevisible on five different reels. By comparing actualobservations of results to the par sheets it is possible todetermine which reels the machine uses, and thus which par sheet and which return. There are various three-symbol combinations that appear in at least one but not all par sheets. So if one of these combinations occurs on an actualmachine it narrows down the possible par sheets. By playingenough the player can narrow down the possible par sheets tojust one.
To help identify the unique combinations I wrote a computer program for each game, which had the exact reel order of all 5 reels of all the par sheets. The program then counted the number of par sheets with each possible three-symbol combination. If the number was greater than 0 and less than the maximum then that combination was identified along with the associated par sheets it belonged to.
It is then a matter of simply playing the game and comparing the outcomes to the list of partially unique combinations. It only takes about 5-10 plays per machine to narrow down the possibilities to just one par sheet.
The averages in the table are actually an average of averages. For each kind of machine at each casino I took an average return. Then I took the average of these averages over the five kinds of machines I tested for.
Slot Machine Definition
There is some confusion about what constitutes a 'slot machine' or 'slot.' My definition, and that of most gamblers, is a gambling machine with either actual spinning reels or video representations of the them.
People in the gaming business and regulators generally refer to a slot machine as any gambling machine, including reeled slots, video poker, video keno, video blackjack,etc.. For purposes of statistics both casino managers and regulators combine all the electronic gambling machines together. For example, the Slot Chart in Casino Player magazine and reports by the Nevada Gaming Control Board do not isolate just reeled slots but consider all electronic games a 'slot.' Therefore my return percentages should not be expected to agree with those reported by the casinos or regulators. As far as I know mine is the only source to isolate just the return of reeled slots.
Acknowledgements
I would like to thank Rob Feldheim for helping with the slot play and record keeping. Rob helped me with most of the casinos on the east side of town and part of downtown. I would also like to thank par Sheet Pete (not his real name)for providing the par sheets, without which this project would not have been possible.
Internal Links
Go to slot machine appendix3B (Jean/Primm slot returns).
Go to slot machine appendix 3D(Henderson slot returns).
Go to slot machine appendix 3E(Las Vegas quarter and dollar slot returns).
Go to slot machine appendix 3F(Montreal slot return).
Go back to slot machines.
External Links
The main-stream media has covered this study in depth. Here are links to some articles.
- Turning'em loose, an article that appeared in the Las VegasReview Journal on May 19, 2002, about the possible effectsof this study.
- One-Armed Bandit or Robin Hood?, an article by myself for Contingencies Magazine explaining the methodology, results, and weaknesses of the study.
- Play by the rules and the one-armed bandits will still win. Boston Globe article about slot machines, in which my Las Vegas survey is mentioned and my advice quoted. (cache)
Written by: Michael Shackleford
Slot machines are the most popular game in any casino. Sure, people bet more on the lottery, and the worldwide sports betting market is huge. But slot machines are the game du jour in most casinos, especially in the United States.
Sadly, slot machines games also offer the worst odds in the casino except maybe for keno. The compounding effect of making hundreds of bets per hour at the slots make these games a bigger moneymaker for the casino than keno.
There’s no science to playing slots. You put your money in, spin the reels, and hope for the best. The only decisions you make are which game to play and how much to bet.
This post covers how much you should bet. You’ll often hear so-called gambling experts say you should always place the maximum bet on slot machines.
Casino Odds On Slot Machines Play
This isn’t true for most games.
Casino Odds On Slot Machines Machine
There Are Two Kinds of Max Bets on Slot Games
You’ll only find one “Max Bet” button on a slot machine game, but some games allow you to adjust the number of paylines you bet on. These are older games. They preceded the guaranteed “243 ways to win” games.
The first time I saw one of these games, a friend of mine called them “penny slots.”
The minimum bet was 10 cents per payline and the game had 25 paylines. The minimum bet was, to my way of thinking, $2.50. You could never bet just a penny on that “penny slot” game.
The maximum bet was $1 per payline. This was a sneaky way of getting the players to lay down more money. If you hit “Max Bet” on that machine, it took $25 in credits from your balance.
The More Complicated the Slot Game, the Less Likely You’ll Win
If you don’t understand how much you’re betting when you push a button on a slot game, there’s something wrong with the game. Perhaps the gaming industry just went through a phase of bad design.
But just because a slot machine game has multiple paylines, you shouldn’t assume that you’ll lose money if you bet on fewer paylines. Each bet on each payline is a separate bet, so playing all the paylines at once might make you more likely to see a winner. But you’ll also see more losing spins on the other paylines to compensate (in the long run, anyway).
The game is still programmed to spin as if all the paylines are active. I watched in horror, as that $25 bet spun the reels. I got lucky and the machine paid a low prize. I didn’t lose $25.
You can save money on a slot machine like this in two ways.
- You can bet on fewer paylines.
- You can lower the size of your bet.
My buddy disabled all the paylines and played $1. We saw a big prize combination come up but it didn’t pay anything. It was on a deactivated payline. There was no pattern on the one active payline.
A Few Older Games Increased Your Probability With Your Bet Size
This kind of game worked in the opposite way. You didn’t disable or enable paylines. The game’s help screen said some features were only enabled for the max bet.
We deduced that meant the theoretical return to player was calculated only for the max bet. And if the game wasn’t allowing you to use all the features with lesser bets then it must have had a lower RTP.
I went back to play some blackjack that night but my friend stayed and played that game. He did okay, not great. He said it made a big difference to play the max bet.
A Basic Slot Game Doesn’t Change the Probabilities
Whether it’s a 3D video slot with monsters running around the screen or just a classic three-reel game, if the slot game doesn’t disable paylines or require max bets, then the probabilities don’t change.
You can bet the minimum or maximum credits, and it won’t affect the outcome of the game. You simply change the number of guaranteed spins you can play.
If you have $300 and a game has a $1 minimum, you can play that game 300 times. If you make a maximum bet of $5 on every spin, then you can only play the game a maximum of 60 times (if you lose every time).
This makes a difference to some players. Other players say you’re not going to lose 60 times in a row, so why worry about that? Bet the max and get the most from your prize.
Most Progressive Slot Games Only Pay on Max Bets
If you’re playing a progressive slot game, then you need to make a maximum bet. I’ve seen a few games with multiple progressive jackpots where you only needed a max bet for the biggest jackpot.
If you have two versions of the same slot game, one is progressive and the other is not, you might as well play the max bet on the progressive version of the game.
Progressive slot games have a mixed reputation. I’ve talked to people who refuse to play them. They’re convinced the payouts are less on progressive games.
And I know people who almost exclusively play progressive slot games. They would rather win a big prize beyond whatever the machine itself pays. They don’t have to win $1 million if they can come away with a few thousand.
I’ve seen it play out both ways. I’ve never been in a casino where someone won more than $10,000.
Casino Odds On Slot Machines Spin
The Math Says Max Bets Put You Ahead Faster
Assuming you find a slot machine that pays reasonably well, maybe it’s on a “hot” streak despite its regular RTP, why not play only max bets?
If the maximum payout is 1000x your bet, you’ll make $999 on a $1 bet or $4995 on a $5 bet. That’s a really simple equation, so why doesn’t everyone bet that way?
If you’re down to your last $20, you may decide to “roll it up. ” But what’s the difference between rolling up $20 and rolling up $200?
It comes down to how many spins you can guarantee yourself. This is a psychological game we play with ourselves. The odds of winning on the next spin are the same regardless of how much you bet.
There Is Another Advantage to Not Making Max Bets
If you want to play a lot of different games and you don’t have an unlimited bankroll, then playing minimum bets allows you to spread your time around.
Casino Odds On Slot Machines Wins
Some players like to test the games when they visit a casino for the first time. They make a decision based on luck.
I remember watching a man approach a slot machine late one night. I was getting ready to leave. He put a dollar in the machine and spun the wheels.
He went down the line of machines until one of them paid. There, he stopped and began playing.
Conclusion
Slot game designs have become more polished, but their rules are less confusing. People want to push a button and win some money.
Casino Odds On Slot Machines Win
I think caution is only warranted if you’re unfamiliar with the games and you don’t know immediately if they have any special rules. It’s always a good idea to read the pay tables first.
Casino Odds On Slot Machines
And if you’re a little confused by the game rules, then only play minimum bets until you understand what the game is doing.
There’s no need to rush into max bets if you’re not ready to take that chance.