Author and casino expert Steve Bourie takes a look at various types of slot machines and discusses when it is best to bet maximum coins on them.
- When To Switch Slot Machines Without
- When To Switch Slot Machines Work
- When To Switch Slot Machines Spin
- When To Switch Slot Machines Invented
- When To Switch Slot Machines Dispense
- When To Switch Slot Machines Jackpots
Apparently playing slot machines is more fun than just about anything. Old articles about the casino industry used to tout that slot machines made up 70% of a casino’s revenue, on average. More recent literature suggests that it’s even more than that—along the lines of 80%.
I live near the Winstar Casino, and I have a number of friends who visit the casino at least once a week—sometimes more—just to play slot machines there. I’m not a fan of slot machines to begin with, although I enjoyed The Big Lebowski slot machine for about an hour during my last visit with my buddies.
I thought it would be fun to write a post explain how a smart person might play slot machines. I don’t know how smart I am, so a lot of this post will just look at what I THINK a smart gambler might do. Maybe this will help inform your own decisions.
1- Smart Slot Machine Players Don’t Play with Money They Can’t Afford to Lose
You’ve probably seen the expression, “scared money always loses.”
This is true for any kind of gambling, but maybe not for the reasons you think. It’s not a supernatural occurrence based on the vibrations you’re sending out into the universe.
The fact is, slot machines are a worse bet in the casino than almost any other. The odds are against you, and in a significant way.
If you have money set aside for rent, or for a utility bill, or for a child support payment, you shouldn’t gamble it on a slot machine. Slots are negative expectation games.
In fact, you shouldn’t gamble money you can’t afford to lose on positive expectation games, either. That’s because games of chance are RANDOM. In the short term, you can lose any game, even if you have a mathematical edge over the casino or the other players.
Any money you gamble with should be earmarked as part of your entertainment budget. The healthiest way to approach gambling on slot machines is to treat it as entertainment. You’ll sometimes win money, and that’s great, but there’s no way to become a professional slot machine player.
Don’t even try.
2- Smart Slot Machine Players Keep Detailed Records
I often relate a story about how I used to work in middle management in a corporation in Dallas. I wanted to be good at my job, so I studied several management books. One of the first and most important things I learned is that performance measured is performance managed.
This means that if you’re not keeping written records managing your performance, you’re making a mistake.
Of course, slot machine players aren’t professional gamblers, and they can’t improve their performance by playing more skillfully.
But I’m convinced that smart gamblers, even recreational gamblers, benefit from mindfulness. One of the easiest ways to be mindful of something is by paying attention to it. If you’re keeping records, it’s easy to pay attention to it.
Another benefit to keeping written records of your results at the casino is for tax purposes. If you win more than $6000 on a slot machine, the casino sends a notice to the IRS to report the income. If you’ve lost $4000 prior to that at the casino, you can probably deduct that and only pay taxes on your net winnings—the winnings minus the previous losses in that calendar year.
Finally, the biggest mistake I see most slots players making is their belief that they’re winning more often than they’re losing or that they’re breaking even.
The payback percentages for the slot machines in Oklahoma can’t possibly be higher than 75% or 80%. But all my friends are convinced that they’re losing far less money than they actually are losing. Some of them, in fact, are convinced that they’re net winners.
I have one buddy, though, who gambles so much that he’s moved up to the next tier of the players club. He gets a free cabana by the pool. He knows how much he’s lost so far this year. Even though he plays a lot and loses a lot, he knows the amount.
Knowing is better than not knowing.
3- Smart Slot Machine Players Count Funny Things
Some of the best advice I’ve ever read about playing the slots is that the most important thing you can do to minimize your losses is to slow down your rate of play. The more spins you make per hour, the likelier you are to lose a lot of money per hour. You don’t even necessarily get more pleasure out of it.
I took a recovering meth addict to the casino with me once. I’ve never seen anyone play a slot machine faster. If she wasn’t making 900 bets per hour, she was coming close. I’ve also never seen anyone lose that much money that fast.
I’d had a discussion with gambling writer Michael Bluejay a week before my last visit to the casino, though. He’d mentioned that he’d read one of my posts about how important rate of play was to your predicted hourly loss. It got me thinking about making actual measurements of my own rate of play next time I was at the casino.
The average number of spins per hour that everyone quotes when talking about slot machines is 600 per hour. I decided to see how close I came to that number, so I counted off each spin as I made it. I also waited until all my winnings were credited before making the next spin.
I made 201 spins in half an hour. (I used the stopwatch function on my phone to track this.) This means I was making 400 spins per hour on average.
That’s only 2/3 of the average, so I’ll lose 2/3 of what the average player will lose spending the same amount of time on the machine.
If you really think of gambling as entertainment that you’re paying for on an hourly basis, you’ll easily see why this is a good thing. Bargain gambling is good gambling.
I also tracked how much money I lost over that time period, so I was able to do a short-term calculation of the machine’s payback percentage. I know that with only 201 trials, my number isn’t close to perfect. But it’s still fun and interesting to track such things.
From a longer-term perspective, if you’re keeping records, you know how much you’re losing, and you don’t fall into the trap that some people do of thinking they’re winning at a game they’re actually losing.
4- Smart Slot Machine Players Take Advantage of the Players Club
I’ve weighed the pros and cons of the players club. Most writers in this industry, by the way, make an unqualified recommendation that you always join the players club. I don’t think this should be the default choice for everyone, though.
Here’s why:The players club is a tool the casino uses to market to gamblers. If you’re more susceptible to advertising than the average person, you might wind up losing more money to the casino than is reasonable or expected.
Or you might just hate getting advertising in the mail.
The players club card is a credit card shaped plastic card that you insert into the machine so that the casino can reward you for your play. They give you points based on how much money you place in bets. These points aren’t related directly to your losses, either—they’re related to the amount you gamble.
If you wager $450 per hour through a slot machine with the card inserted, you’ll get points based on that amount even if you win over the course of an hour, a session, or a visit to the casino.
These points are then used to give you rewards like free food, lodging, and entertainment. The casino knows that the more you play, the more money they make in the long run. Their losses are averaged over thousands of players per day, and so are their wins. Since the slot machines pay out less than they take in, the casino has no doubt about its profit potential.
These rewards are cool and worthwhile, usually. I think, for most gamblers, especially smart ones, the benefits outweigh the drawbacks here.
But you know better than I do how important your privacy is. If you don’t want to get ads via direct mail, being a member of the players club might not be for you.
Keep this in mind, too. The casinos track your activity on the slot machines closely. This gives them aggregate information about player tendencies that they can use to push players’ psychological buttons.
For ExampleSuppose a casino analyzes their slot machines’ hit ratios versus time spent on machine. They learn that the average time on the machines with a hit ratio of 30% is 90 minutes per game.
But on the machines with a hit ratio of 25%, the average time spent on average on each game is only 60 minutes.
The payback percentage can be adjusted to anything the casino wants, regardless of the hit percentage. You can have a slot machine with a hit percentage of 30% with an 85% payback percentage, but you can also have a slot machine with a hit percentage of 25% with the same 85% payback percentage. All the slot machine makers need to do is adjust the payback amounts and probabilities for the various combinations of symbols.
They don’t do this in any kind of short-term way.
But the longer they collect this kind of data, the more of it they have, and they’re becoming incredibly efficient at exploiting slot machine players’ psychological tendencies.
You have to decide if it’s smart to contribute to that.
5- Smart Slot Machine Players Learn How the Machines Work Before Playing
Maybe this should have been the first bullet point, but that other stuff is SO important, too.
Any fool can put money in a slot machine, press a button, and win or lose.
But what’s fun about that if you don’t know what you’re looking at?
Here’s one of the best slot tips you’ll ever find – If you really want to have fun on a slot machine, you need to understand what you’re doing.
Let’s start with the really basic stuff:
At most casinos, you can put money into the machine in various ways:
- Cash
- Coins
- Payout tickets
- Player cards
If you’re using cash, you can use almost any denomination you can think of, from $1 on up to $100.
Most modern slot machines don’t take coins anymore, but if you can find one, you just drop the money into the slot. (That’s where the games get their name, by the way.)
The payout tickets can be used just like cash in modern slot machines. You also use them when it’s time to cash out—you just take them to one of the machines that converts them into currency. When I started, you still got your winnings in coins. Those days are long gone.
You can use your player card to put money in the machine if you’ve been awarded rebates to your card in the form of credits.
No matter which method you use, the slot machine converts your money into credits on the machine. You can see how many credits you have in the machine at any time. The total is always prominently displayed. Depending on the game’s denomination, you might have trouble converting that amount to cash in your head. But the machine will do that for you when you cash out.
Some slot machine games include their pay tables on the machine itself, but others require you to access a screen via their touch-screen. (Look for an option labeled “HELP.”) The pay table lists the symbols along with what the payouts are for the various possible combinations of those symbols. It will also include information about where the pay lines are. These are the lines along the front of the machine where the symbol combinations occur.
This screen will also explain things like the bonus games, scatter symbols, and wild symbols.
Finally, you need to know where the CASH OUT button is. Don’t just sit there and play until all your money’s gone just because you can’t find the CASH OUT button. That really is crazy.
6- Smart Players Know that Denominations Can Be Misleading
You’ll hear a lot of people talk about “penny slots,” “nickel slots,” and “quarter slots.”
This does not mean that you’re betting a penny per spin, a nickel per spin, or a quarter per spin.
Most games encourage or force you to bet multiple coins per pay line, and you usually need to bet on multiple pay lines, too.
The most recent slot machine I played on was a penny slot called Lightning Sevens. It was a penny slot, but you had to bet 5 units per line to be eligible for the jackpots. (The game had 4 progressive jackpots, too.) The game also had 25 paylines.
As a result, I was betting $1.25 per spin on a penny slot machine.
This is another reason you should pay close attention to the HELP or INFO screen. On a lot of slot machine games, you can win the top jackpot even if you’re not betting max coins. But some games have lower payouts for the lower denominations.
It’s important to know the difference.
7- Smart Players Don’t Worry about the Locations of the Machines
One of the strategies you’ll often see touted on websites and in old books about playing slot machines is to try to play the games on the edges, nearest the walkways. The theory is that the casinos put the loosest machines there to attract more players to the games.
This might have been true at one casino at one time a long time ago.
But that’s almost certainly not true in a modern casino.
Casino managers probably employ some type of methodology related to the placement of their machines, but it’s probably subtle enough and complicated enough that you’ll never be able to use that logic to your advantage.

In fact, smart slot machine players don’t really worry about any kind of slot machine strategy at all. After all, the smarter you are, the more you realize that no slot machine strategy has any kind of validity at all. These games are entirely random.
You see, it’s worthwhile to study basic strategy in blackjack. It’s even worthwhile to learn how to count cards. Your decisions matter at the blackjack table—mathematically.
But on a slot machine, all you can do is put your money into the machine and hope for the best.
I’ve seen all kinds of silly advice that’s supposed to help you become a winner at the slot machines. For example, I read one author who said that if you get more than 7 spins in a row with no winners, you should switch machines. The same author suggests setting a percentage of your “session bankroll” as a win goal and a loss limit.
You’re then supposed to quit when you’ve won that much or when you’ve lost that much.
That kind of money management strategy doesn’t really matter, though. In the long run, you’re just playing one huge, almost infinite session. Arbitrarily taking breaks during your lifetime gambling session doesn’t increase your chances of winning.
The only way to do that is to only play slots once, get lucky, quit while you’re ahead, and never play again.
That’s a smart strategy in its way, but it’s a little limiting if you enjoy playing slot machines.
8- Smart Players Avoid the Biggest Progressive Slot Machines
A progressive slot machine is one which has an ever-increasing jackpot. These come in 3 varities:
- Standalone progressives
- In-house progressives
- Wide area network progressives
A standalone progressive takes any bet that’s made on that machine and applies a small percentage of it toward its jackpot, which gets larger as a result.
An in-house progressive is networked with other slot machines in the same casino. Any bet on any progressive in that in-house network increases the size of the jackpot for all those machines.
A wide area network progressive is a game that’s networked with multiple slot machines in multiple casinos. Any wager made on any machine in the network increases the size of the overall jackpot, which can increase its overall size.
Here’s why smart slot machine players tend to avoid such machines, though:
That tiny percentage that goes to fuel the jackpot comes out of the payback percentage. The full payback percentage on the machine isn’t fully realized until you’ve won it. In the case of the largest progressive jackpots, that might not happen ever.
Megabucks is the best known of the largest progressive jackpots. The jackpot starts at $10 million, and it’s not unusual for the jackpot to get as high as $20 million.
As you might guess, the probability of winning Megabucks is on a par with winning the lottery.
And we all know that smart gamblers don’t play the lottery, right?
The opposite of a progressive slot machine, by the way, is a “flat-top” machine. That’s a game where the jackpot is a flat dollar amount. It doesn’t change as the game is played.
Flat top machines generally have better payback percentages than progressive machines.
Conclusion
Let me be clear about this:
Slot machines are always a negative expectation bet. No amount of smarts or strategy can help you overcome this mathematical edge.
This doesn’t mean you can’t play slot machines like a smart person. You just need to do what a smart slot machine player does—treat the games as the entertainment devices that they are. Treat the money you wager on such machines as an entertainment expense.
Remember the movie National Lampoon’s Vegas Vacation, when gambling fever consumes Chevy Chase’s character, Clark W. Griswold? He goes on a losing streak to beat all losing streaks while his son, Rusty, wins four cars by playing the slot machines. Maybe Clark would have done better if he had read Probability For Dummies! In this article, you discover the basic ideas behind slot machines and how they work, so that you can get past the myths and develop a strategy based on sound probability.
Understanding average payout
When To Switch Slot Machines Without
When casinos advertise that their slot machines pay out an average of 90 percent, the fine print they don’t want you to read says that you lose 10 cents from each dollar you put into the machines in the long term. (In probability terms, this advertisement means that your expected winnings are minus 10 cents on every dollar you spend every time the money goes through the machines.)
Suppose you start with $100 and bet a dollar at a time, for example. After inserting all $100 into the slot, 100 pulls later you’ll end up on average with $90, because you lose 10 percent of your money. If you run the $90 back through the machine, you’ll end up with 90 percent of it back, which is 0.90 x 90 = $81. If you run that amount through in 81 pulls, you’ll have $72.90 afterward (0.90 x 81 = 72.90). If you keep going for 44 rounds, on average, the money will be gone, unless you have the luck of Rusty Griswold!

How many pulls on the machine does your $100 give you at this rate? Each time you have less money to run through the machine, so you have fewer pulls left. If you insert $1 at a time, you can expect 972 total pulls in the long term with these average payouts (that’s the total pulls in 44 rounds). But keep in mind that casinos are designing slot machines to go faster and faster between spins. Some are even doing away with the handles and tokens by using digital readouts on gaming cards that you put into the machines. The faster machines can play up to 25 spins per hour, and 972 spins divided by 25 spins per minute is 38.88 minutes. You don’t have a very long time to enjoy your $100 before it’s gone!
The worst part? Casinos often advertise that their “average payouts” are even as high as 95 percent. But beware: That number applies only to certain machines, and the casinos don’t rush to tell you which ones. You really need to read or ask about the fine print before playing. You can also try to check the information on the machine to see if it lists its payouts. (Don’t expect this information to be front and center.)
Implementing a simple strategy for slots
Advice varies regarding whether you should play nickel, quarter, or dollar slot machines and whether you should max out the number of coins you bet or not (you usually get to choose between one and five coins to bet on a standard slot machine). In this section, you’ll find a few tips for getting the most bang for your buck (or nickel) when playing slot machines.
Basically, when it comes to slot machines, strategy boils down to this: Know the rules, your probability of winning, and the expected payouts; dispel any myths; and quit while you’re ahead. If you win $100, cash out $50 and play with the rest, for example. After you lose a certain amount (determined by you in advance), don’t hesitate to quit. Go to the all-you-can-eat buffet and try your luck with the casino food; odds are it’s pretty good!
When To Switch Slot Machines Work
Choosing among nickel, quarter, and dollar machines
The machines that have the higher denominations usually give the best payouts. So, between the nickel and quarter slots, for example, the quarter slots generally give better payouts. However, you run the risk of getting in way over your head in a hurry, so don’t bet more than you can afford to lose. The bottom line: Always choose a level that you have fun playing at and that allows you to play for your full set time limit.
When To Switch Slot Machines Spin
Deciding how many coins to play at a time
When To Switch Slot Machines Invented
When deciding on the number of coins you should play per spin, keep in mind that more is sometimes better. If the slot machine gives you more than two times the payout when you put in two times the number of coins, for example, you should max it out instead of playing single coins because you increase your chances of winning a bigger pot, and the expected value is higher. If the machine just gives you k times the payout for k coins, it doesn’t matter if you use the maximum number of coins. You may as well play one at a time until you can make some money and leave so your money lasts a little longer.
When To Switch Slot Machines Dispense
For example, say a quarter machine pays 10 credits for the outcome 777 when you play only a single quarter, but if you play two quarters, it gives you 25 credits for the same outcome. And if you play the maximum number of quarters (say, four), a 777 results in 1,000 credits. You can see that playing four quarters at a time gives you a better chance of winning a bigger pot in the long run (if you win, that is) compared to playing a single quarter at a time for four consecutive tries.
When To Switch Slot Machines Jackpots
The latest slot machine sweeping the nation is the so-called “penny slot machine.” Although it professes to require only a penny for a spin, you get this rate only if you want to bet one penny at a time. The machines entice you to bet way more than one penny at a time; in fact, on some machines, you can bet more than 1,000 coins (called lines) on each spin — $10 a shot here, folks. Because these machines take any denomination of paper bill, as well as credit cards, your money can go faster on penny machines than on dollar machines because you can quickly lose track of your spendings. Pinching pennies may not be worth it after all!