PlaySpinWheel

Heads or tails: the coin flip wheel

No coin in your pocket? Nobody has one anymore. Spin the wheel instead: heads is half the wheel, tails is the other half, a true 50/50, called in five seconds, with a share link that proves the call.

HEADSTAILS🪙

Anything can win. That's the deal.

  • Heads
  • Tails

Why flip a coin with a wheel?

Because phones killed pocket change, and the wheel is the coin you always have. It's also a better show: a real flip is over in half a second, while the wheel's last agonizing tick gives a 50/50 call the drama it deserves.

And unlike a coin that rolled under the sofa, the wheel keeps receipts: the result lands in a share link that replays the exact spin. "Best of three" has to be agreed before the first spin, not invented right after losing it.

Who kicks off? Football's oldest coin toss

Every real match starts exactly like this: the referee tosses a coin, the captain who wins it chooses which goal to attack, and the other side takes kickoff. That's law 8, and a toss has opened matches since the 1800s. World Cup knockout history has hung on coin calls, too: before penalty shootouts arrived in the 1970s, drawn ties could literally be decided by the toss.

Use the wheel the same way for five-a-side: winner picks ends, loser kicks off, swap both at half time. It's the most on-brand thing this football site's coin flip could possibly do.

What does heads or tails settle best?

Strictly two-way calls: who goes first, who gets the front seat, who pays for the coffees, which of the final two movies you actually watch. Agree what the call decides before you spin. That's the entire etiquette of the coin toss. And if you catch yourself wanting three options on the wheel, that's not a coin flip anymore; build a custom wheel instead.

Fair questions

Is the wheel exactly 50/50?
Yes. Heads and tails each get precisely half the wheel and every spin uses a fresh random seed. It's arguably fairer than a physical coin, which can be biased by the toss itself.
What's the difference between this and the yes or no wheel?
Same fair 50/50, different job: yes/no answers a question you asked, while heads/tails assigns sides. You call heads, your mate gets tails, and the wheel picks between people rather than answers.
Can we do best of three?
Sure. Just agree it before the first spin. Calling "best of three" immediately after losing the first one is the oldest move in the book, and the share links make the score impossible to fudge.
Why does football start with a coin toss?
The laws of the game require it: the toss winner picks which goal to attack and the other team takes kickoff, with ends swapping at half time. The wheel runs your kickabout by the same law, minus the coin.

Sources and references

Every spin here is decided by a cryptographic random seed drawn from a browser API defined by a public standard. The specification behind that fairness claim is below, so it can be checked rather than taken on trust.

The getRandomValues method generates cryptographically strong random values.

Source: W3C, Web Cryptography

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