Will Japan win the 2027 AFC Asian Cup?: Japan: Kalshi vs Polymarket odds

The price to buy each side on each site, updated 1 minute ago. Kalshi closes this market on February 21, 2027.

Side	Kalshi	Polymarket
Yes	15¢	6¢
No	89¢	98¢

A price of 47¢ means the market puts it at about 47%; each contract pays $1 if it happens. Green is the cheaper site for that side. Best ask only, before fees.

Buying No on Kalshi at 89¢ and Yes on Polymarket at 6¢ costs 95¢ for a $1 payout whoever wins, before fees. Whether that still pays after Kalshi's fee, at the size actually for sale, is what ArbTrader checks live.
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On the sites: Kalshi · Polymarket · Polymarket calls it “Will Japan win the 2027 AFC Asian Cup?”

Why are Kalshi and Polymarket prices different?

They're separate exchanges with different traders, fees and rules, so the same question can trade at different prices. When buying opposite sides on the two sites costs less than $1 after fees, you can lock in the difference whoever wins, as long as both sites settle the question the same way. Read the step-by-step guide or how Kalshi vs Polymarket arbitrage works.

We match markets across the two sites by title, dates and rules; check both sites' rules before trading. Prices can change at any moment. Not financial advice. ArbTrader isn't affiliated with Kalshi or Polymarket.