How Do Prediction Markets Work? Odds, Payouts and Examples

Quick answer: A prediction market lets you bet on the outcome of a real-world event, such as an election or the price of Bitcoin on a set date, by backing Yes or No. At Chipstars every market is a Yes or No question with decimal odds. If your answer is right, you are paid your stake times the odds when the market settles.

Updated: 16 October 2026

• Where: The Predictions section of the Chipstars sportsbook
• Market format: One Yes or No question per market
• Categories: Politics, crypto, finance, tech, culture and the economy
• Price: Decimal odds, fixed when you place the bet
• Payout if you are right: Stake × odds (€10 at 1.68 returns €16.80)
• If a market is voided: Your stake is returned
• Settlement: When the outcome is known: days for a price on a set date, years for a 2028 election

What is a prediction market?

A prediction market is a market where the price of each answer shows how likely people think it is. Instead of a football match, the event is a question about the world: who wins an election, whether Bitcoin reaches a price by a date, or whether a public figure does something within a set period.

Recent questions on Chipstars Prediction Markets include:

• Will Bitcoin reach $90,000 by December 31, 2026?
• Will J.D. Vance win the 2028 Republican presidential nomination?
• Will the price of Bitcoin be above $84,000 on October 8?
• Will Elon Musk post fewer than 40 tweets from October 8 to October 10, 2026?

Each question has two answers, Yes or No, and each answer has its own odds.

How do prediction market odds work?

Prediction market odds at Chipstars are decimal odds, the same format used across the Chipstars sportsbook. The odds tell you two things: what you get back if you are right, and how likely the market thinks that answer is.

To turn decimal odds into a probability, divide 1 by the odds:

• 1.25: Implied probability: about 80%; A €10 bet returns if right: €12.50
• 1.49: Implied probability: about 67%; A €10 bet returns if right: €14.90
• 1.68: Implied probability: about 60%; A €10 bet returns if right: €16.80
• 2.20: Implied probability: about 45%; A €10 bet returns if right: €22.00
• 4.51: Implied probability: about 22%; A €10 bet returns if right: €45.10

Lower odds mean the market sees that answer as more likely, so it pays less. Higher odds mean the answer is seen as less likely, so it pays more. Odds usually include a small margin, so the Yes and No probabilities of one market add up to slightly more than 100%.

Do prediction market odds change?

Yes, prediction market odds move as news arrives and as people bet. On the Chipstars market "Will Bitcoin reach $90,000 by December 31, 2026?", Yes was priced at 1.49 on 8 October 2026 and at 1.68 on 15 October 2026. In probability terms, the market went from about 67% to about 60% in one week.

Your own odds are fixed when you place the bet. If the price moves afterwards, your bet still pays at the odds you took.

Worked example: a Bitcoin price prediction

Say you think Bitcoin will reach $90,000 before the end of 2026, and Yes is priced at 1.68.

1. You bet €10 on Yes at 1.68.
2. If Bitcoin reaches $90,000 by 31 December 2026, the market settles as Yes and you get €16.80 back: your €10 stake plus €6.80 profit.
3. If it does not, the market settles as No and you lose the €10.

Your stake stays in the bet until the market settles, which here could be the end of the year. Short markets, such as the price of Bitcoin on one specific day, settle within days.

Prediction market vs sports betting: what is the difference?

At Chipstars a prediction is placed and paid like a sports bet: you pick an answer, take the decimal odds, and the bet slip shows your possible return. The differences are in the event itself:

• What you bet on: real-world questions instead of matches.
• How long it runs: a match ends within hours, while a prediction market can stay open for weeks, months, or until an election years away.
• What decides it: an official result, a published price or a public count, instead of a final whistle.
• What matters: news, polls, price charts and announcements, more than team form.

Prediction exchanges such as Polymarket or Kalshi work differently: there you buy and sell shares priced between 0 and 1 with other users. At Chipstars you bet at fixed odds with the sportsbook, so the price you take is the price you are paid at.

When does a prediction market settle, and what if it is voided?

A prediction market settles once its outcome is known. A Bitcoin price on a set date settles within days, and an election market settles when the result is confirmed.

Your bet ends in one of three ways:

• Won: you receive your stake times the odds. For example, a €10 bet on Yes at 12.82 in "Will Elon Musk post fewer than 40 tweets from October 8 to October 10, 2026?" would return €128.20 if Yes is the result.
• Lost: you lose your stake.
• Void: if a market is cancelled under the rules, your stake is returned in full.

How to place a prediction at Chipstars

1. Log in to your Chipstars account, and make a deposit if your balance is empty.
2. Open the Chipstars Predictions page.
3. Choose a category: politics, crypto, finance, tech, culture or the economy.
4. Pick a market and choose Yes or No.
5. Enter your stake, check the possible return on the bet slip, and confirm.
6. Follow your open bets in your sportsbook bet history until the market settles.

Are prediction markets accurate?

Prediction markets are often a useful read of what people expect, because prices react quickly to news. They are not a forecast you can rely on: a 60% chance still leaves a 40% chance that it does not happen, and markets can be wrong, especially on events far in the future. Treat every prediction as a bet, not as an investment.

FAQ

Are prediction markets legal?

Rules on betting on elections and other real-world events differ from country to country. Chipstars is operated by SoftSpark Services s.r.l and licensed by the Government of the Autonomous Island of Anjouan, Union of Comoros (licence ALSI-202409048-FI2), and does not accept players who live in or are located in the USA, France, the Netherlands, Singapore, Curaçao or Comoros. Elsewhere, check the rules that apply where you live.

Can I bet on elections at Chipstars?

Yes. The politics category of Chipstars Prediction Markets includes election markets, such as the 2028 US Republican presidential nomination and the 2026 Serbian parliamentary election.

Can I bet on the price of Bitcoin?

Yes. The crypto category has Bitcoin price markets, from short questions about the price on one day to "Will Bitcoin reach $90,000 by December 31, 2026?".

How much do I win on a prediction?

You get back your stake multiplied by the decimal odds. A €10 bet at 1.68 returns €16.80, which is €6.80 profit.

Can the odds change after I bet?

The market odds keep moving, but your bet stays at the odds you took when you placed it.

What happens if a prediction market is cancelled?

If a market is voided, your stake is returned in full.

Play responsibly

Chipstars is for players aged 18+ only. Predicting real-world events is still gambling: it is entertainment, not a source of income, and a likely outcome can still lose. Only bet what you can afford to lose, set a deposit limit and take regular breaks. All tools are on the Chipstars responsible gaming page.

For more on the topic, read our introduction to prediction markets or browse the Chipstars sportsbook.

Sources

• Chipstars Prediction Markets
• Chipstars sportsbook
• Chipstars responsible gaming
• Market prices and settlements: Chipstars sportsbook data, 6 to 15 October 2026