What is a casino's winning percentage?

Answer 1

It depends on the casino and their game mix, but most fall within the range of 7% - 9% of coin-in overall. Coin-in is defined as the amount of money played on the slots.

Now, some might say it's closer to 100%, but that's because they don't understand the math and are only looking at their own results. And, if you look at it from the perspective of "I walked in the door with $100 and left with nothing," then that holds true.


However, it's not about individual results. It's about the overall average over time. Also, it's unlikely that the person with $100 in their pocket would lose it all in one play. It's from continuing to run that $100 plus the money won along the way through the slots until it's all gone. The house edge works against you over time.


You might get $1,000 (or more) of coin-in from that $100. If the casino ultimately got your $100 from $1,000 of the coin-in from your play, then they held 10% even though they got 100% of your $100. It's all about the math and the aggregate play from hundreds of players every day.


Remember, some people leave big winners. What was the casinos winning percentage from the player that came in with $100 and left with $1,000? Or $10,000?