Spin the Wheel Fairness Audit. Verify if it’s really random!
If you are using Spin the Wheel, you may wonder if the results are actually random or biased. That’s a fair question. And the answer to this question is: yes, based on the evidence. The Spin the Wheel tool uses a cryptographically secure random number generator, and running the Fairness Audit yourself will show you whether the winners you’re getting match what real randomness should look like.
In this article, we’ll provide you with the details which will help you in understanding if the winners you are getting on our wheel spinner are random or not. Let’s start with understanding the Fairness Audit.
What Is the Spin the Wheel Fairness Audit?
The Fairness Audit is a tool which is built in every wheel on spinwheelhub.net. This tool is built so that you can verify if the winners are chosen randomly or not.
This Fairness Audit tool runs thousands of test spins on your current wheel and shows you the results, right there in your browser. You can analyze the results yourself and decide if it’s actually random or biased.
How Randomness Actually Works?
The winner on every SpinWheelHub wheel is picked using crypto.getRandomValues(). This is your browser’s cryptographically secure random number generator, which doesn’t calculate numbers from a fixed starting point. Instead, it asks your device’s operating system for the number. This is the same kind of randomness which is used for things like passwords and encryption keys. (On the rare chance your browser doesn’t support this, the wheel falls back to a standard random function, but every modern browser supports it.)
crypto.getRandomValues() is a different function from Math.random(). Math.random() is fine for small things, like picking a random background color. It’s a pseudo-random number generator, which means it produces numbers using a fixed mathematical formula rather than pulling from real entropy. Given the same starting conditions, that formula can produce a predictable sequence. That’s not a strong foundation for a fairness claim.
The Same Code Path, Every Time
On spinwheelhub.net, the fairness audit is run on the same, actual spin wheel that the users use for choosing winners or making decisions. Both a real spin and a Fairness Audit test call the exact same function to pick a winner.
There’s no separate version running just for the test. It’s the same process, every time, whether you spin once or run 50,000 test draws. This is what makes the Fairness Audit trustworthy because it allows you to test the spin wheel itself, not a simulation of the wheel.
Run the Fairness Audit Yourself
On every wheel there is a “Fairness Audit” option, click on that option, and you’ll be ready to run the audit yourself. You can use this audit the following way:
Choosing Spins and Test Runs
Before running the audit, you can choose how many spins to run: 1,000, 10,000, or 50,000. You can also choose how many separate test runs to do: 1, 3, or 5.
The default audit runs 10,000 spins across 5 test runs.That’s 50,000 independent draws on your spin wheel. These 50,000 independent draws are done in five separate checks run back to back, not in a single batch.
Reading the Results
Once the audit finishes, you’ll see three numbers for each entry: Expected, Actual, and Run spread if you ran more than one test.
The Expected number will present the percentage of wins that the entry size should produce on the wheel spinner. If there is any weighted entry on the wheel, its expected number will be higher. Actual number is the percentage of wins that the entry has actually produced during the spin.
Here’s how to judge the results: the gap between the Expected and the Actual number of each entry should sit close together, which means a small gap of a few points is normal. But if there is a large, consistent gap on one entry, it means there’s something off. Run the audit again before drawing a conclusion.
There is a third number, which is Run Spread.This Run Spread number shows the lowest and highest result that entry got across all spin tests.
A tight run spread number means the results stayed consistent across every run, which is good. A wide spread at a low spin count isn’t a red flag. It just means the sample is too small to show a clear pattern yet. If you want a clearer answer, run the audit again using 50,000 spins. A larger sample will narrow the spread and give you a more reliable picture.
Why You Might Get the Same Winner Twice?
Sometimes you’ll see the same name comes up twice in a row when you spin the wheel, and you might wonder if the wheel is actually random or there’s something wrong with the wheel.
The answer is: there’s nothing wrong with the wheel, and this is how the actual randomness looks like. Think of it like flipping a coin, and you get heads three times in a row. Does that mean the coin is broken? No. This wheel spinner works the same way.
Each spin is completely independent. What happened on the last spin has zero effect on the next one. And if you don’t want a winner to repeat, you have two ways to stop it. You can click Remove on the winner popup after each spin, which takes that name off the wheel. Or you can turn on “Remove winner after spin” in the settings, and the wheel does it for you automatically.
What This Audit Does Not Prove?
In the section above, we showed that the Fairness Audit runs the same code as a real spin and that a large sample of test spins matched the wheel’s expected results. Now here are the real limits of what that actually shows.
This Fairness Audit tool is not a certified or regulated audit, and no outside lab or auditor has reviewed our code. It doesn’t publish a cryptographic proof of one specific spin the way a gambling platform’s provably-fair system might.
Moreover, running the audit once and seeing good results doesn’t guarantee every future spin will look identical. Randomness fluctuates, and that’s expected, not a warning sign.
Note: If your use case needs a regulated, certified, or legally binding random draw, like an official lottery, this audit is not for you. It’s a transparent look at the code behind this free Spin the Wheel tool, not a compliance certificate.
FAQs
Conclusion
In short, running the Fairness Audit gives you real evidence that winners are chosen randomly, not through a predictable pattern. To use this audit tool, you just have to open the audit on any wheel, choose your spins and test runs, and look at the numbers yourself.
If the Expected and Actual results sit close together, and they stay consistent across every run, that’s real evidence the wheel is working the way it should.
Moreover, this audit doesn’t hide its limits. It’s not a certified lab test, and it’s not a substitute for a regulated draw. It’s an honest look at the code behind a free tool, and you’re free to check it yourself, any time you want.
If you’re ready to put it to the test, head back to the full wheel spinner and run your own audit.