The odds for a particular slot machine are built into the program on the machine's computer chip. In most cases, the casino cannot change the odds on a machine without replacing this chip. Despite popular opinion, there is no way for the casino to instantly 'tighten. Apr 15, 2011 How to Beat the Slots. Slot machines are the loudest and most colorful attractions in a casino. With their fun themes and large jackpot values, they're designed to pull you in and drain you of your money in small increments. Though slot machines always favor the house, you can use a few tricks to help you beat the. 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.

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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

Odds Of Winning At Casino Slot Machines