Japan vs. Iceland

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Active sub-markets

Market context

Japan will face Iceland in a FIFA International Friendly on 31 May 2026. Polymarket has priced this contract at 100% YES, meaning traders are currently assigning zero probability to Iceland winning or the match ending in a draw. The settlement window closes at 10:25 UTC on that date, giving traders roughly five weeks from now to adjust positions if fresh information emerges about team composition, injuries, or fixture cancellations.

The 100% price reflects Japan's substantial ranking advantage and historical record against Iceland. Japan currently sits around 20th in the FIFA rankings whilst Iceland hovers near 60th; their last competitive meeting was a 2018 World Cup qualifier won 2–0 by Japan. Friendlies between nations of this calibre disparity rarely produce upsets, though conditional token mechanics on Polygon mean even a 1% tail risk of draw or Iceland victory carries meaningful value if new data shifts the crowd's assessment. The USDC settlement mechanism ensures payouts execute on-chain once official FIFA results are confirmed.

Traders should monitor squad announcements from both federations in the weeks ahead. Japanese domestic league schedules and injury reports from J-League clubs will influence team selection, whilst Iceland's European-based players' fixture congestion could affect availability. Any late fixture cancellations—unlikely but possible given international calendar pressures—would trigger alternative settlement criteria. Current pricing suggests the market views a Japanese victory as near-certain, leaving little room for contrarian positions unless material changes to squad depth or tactical circumstances surface before kick-off.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

On Kalshi UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Kalshi UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does it cost to trade on Kalshi UK?

Zero. Kalshi UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.