Kalshi Counter-Strike: B8 vs K27 (BO3) odds
On Kalshi, the favourite is B8, at 59%. That price is unchanged over the past week. The market settles by Oct 27, 2026. Each contract pays $1 if it is right, so 59¢ reads as a 59% chance. Polymarket lists it too, and we compare the two prices below.
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$50 bonusNew to Kalshi? Trade $25, get a $50 bonus through our link. US only, 18+. Kalshi promo code terms
Also on Polymarket: Polymarket's page
Kalshi odds on every outcome
Chance is each outcome's Yes price on Kalshi. A Yes contract at 59¢ pays $1 if that outcome wins.
Kalshi vs Polymarket on this match
The same match on both venues. When the prices differ, the cheaper side costs you less for the same payout.
| Venue | B8 | K27 | Fee | 24h volume | Liquidity | |
|---|---|---|---|---|---|---|
| PolymarketClose-only for US residents | 60¢ | 41¢ | 1.2¢ | $2K | $17K | Trade → |
| Kalshi$50 bonus | 59¢cheapest to buy | 40¢cheapest to buy | 1.7¢ | $0 | – | Trade → |
How this market resolves
The contract is “B8 wins”. A Yes contract pays $1 if the answer is yes, and nothing if not. Kalshi publishes the full settlement rules on the market's page. Read them on Kalshi (opens in a new tab)
Scheduled resolution: Oct 27, 2026.
How to trade this market on Kalshi
- Check your state first. Several states restrict sports contracts.
- Open a Kalshi account. Our Kalshi review covers sign-up and payouts.
- Buy Yes or No at the price shown, 59¢ for B8 right now. Each contract pays $1 if you are right.
- Sell any time before it settles, or hold to the result. Kalshi's fees apply to each trade.
$50 bonusNew to Kalshi? Trade $25, get a $50 bonus through our link. US only, 18+. Kalshi promo code terms
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Common questions
What are the Kalshi odds on Counter-Strike: B8 vs K27 (BO3)?
On Kalshi, the favourite is B8, at 59%. That is a market-implied probability, not a forecast, and it moves as traders buy and sell.
How does this market resolve?
By Kalshi's own settlement rules for this market. Two venues can word the same question differently and settle differently, so read them before you trade.
Is this question on Polymarket too?
Yes. Polymarket's page has its prices and rules. Our side-by-side page shows both prices and both venues' rules.
Can I trade this market in my state?
In most states, yes, on Kalshi. Sports contracts are the exception: several states restrict them. Check your state first.
How accurate are Kalshi odds?
Often more accurate than polls, though never certain. A price of 70% should lose three times in ten. How accurate prediction markets are has the research.
What does it cost to trade on Kalshi?
A trading fee on each contract, largest near 50¢ and smaller towards either end. Kalshi's fees has the formula.