Prize Draw Odds, Sweepstakes Rules and Prize Scams
Updated October 28, 2026
How prize promotions, sweepstakes and “no purchase necessary” games work, what your real odds are, and how to spot a prize or lottery scam before it costs you money. spunk.cash runs no prize draws and gives no prizes.
How Prize Promotions Work
In the United States, a promotion that combines a prize, chance and consideration (a payment or purchase to enter) is a lottery, and a lottery is illegal unless state law allows it: states run their own, and many allow only charity raffles. Companies keep a promotion legal by removing one of the three elements.
Sweepstakes
Winners are picked by chance, so entry must be free. That is why the rules say “no purchase necessary” and offer a free way to enter, such as an online form or a mailed entry. A purchase must not improve your odds.
Contest
Winners are picked by skill and judged against published criteria, for example the best photo or recipe. Many states allow an entry fee for a skill contest.
Lottery
Prize, chance and payment together. Powerball and Mega Millions are legal because states run them. A private raffle that sells tickets is legal only where state law allows it, often only for charities.
What the official rules must tell you
Read the official rules before you enter. Legitimate rules name:
- the sponsor, with a real address;
- who can enter, and the start and end dates;
- the free method of entry and any limit on entries per person;
- each prize and its approximate retail value (ARV);
- how and when the winners are picked and told;
- an odds statement, usually “odds depend on the number of eligible entries received.”
That last line matters. The sponsor cannot know your odds in advance, because they depend on how many people enter. The calculator below shows what that means for you.
Prize Draw Odds and Expected Value Calculator
Enter the size of the draw and its prizes. The calculator shows your chance to win, the expected value of your entries and the break-even point. It runs in your browser.
Method: prizes are drawn from all entries without replacement. Expected value = your entries × total prize value ÷ total entries. Break-even entries = total prize value ÷ cost per entry. A one-prize-per-person rule makes extra entries worth slightly less. Educational tool, not financial or legal advice.
For scale: Powerball draws 5 of 69 white balls and 1 of 26 red balls, which gives 292,201,338 combinations. Mega Millions has drawn 5 of 70 and 1 of 24 since April 2025, which gives 290,472,336. One entry in a 10,000-entry sweepstakes has odds of 1 in 10,000, about 29,000 times better than one jackpot ticket.
How to Spot a Prize or Lottery Scam
The Federal Trade Commission (FTC) consumer advice on prize scams lists these warning signs.
- You must pay to collect. A real prize is free. A fee for “taxes,” “shipping” or “processing” is a scam.
- You won something you never entered. You cannot win a sweepstakes or a lottery that you did not enter.
- They want gift cards, a wire transfer, cryptocurrency or a payment app. Scammers ask for payments that are hard to trace and hard to reverse.
- It is a foreign lottery. The FTC says it is illegal for U.S. citizens to play a foreign lottery, so a message about one is almost certainly a scam.
- Pressure to act now. “Act now” and “limited time” are there to stop you from checking.
- A famous name. Scammers pose as well-known sweepstakes companies or government agencies. The government will not call you to demand money for a prize. Call the company on a number that you look up yourself.
If you already paid, call your bank or the gift card company at once, then report the scam to the FTC at ReportFraud.ftc.gov and to your state attorney general.
Free Games and Pages on This Site
spunk.cash keeps a few simple browser games from its earlier version. They are for fun only: scores stay in your browser and have no cash value.
Also on spunk.cash: why this site gives no prizes, leaderboard, accounts and the blog.
Frequently Asked Questions
Does spunk.cash give away prizes?
No. spunk.cash runs no draws, sweepstakes or prize program, and it pays nothing for playing its games. A message that says you won a prize from spunk.cash is not from us.
Is it worth paying for more entries?
Only with money you are happy to lose. When the cost per entry is more than the total prize value divided by the total number of entries, each paid entry loses money on average.
Do I pay tax on a prize?
In the United States, the IRS treats prizes and awards as taxable income, generally at fair market value. The FTC says a demand to pay taxes or fees before you get a prize is a scam sign.