Sanfrecce Hiroshima vs. Nagoya Grampus

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Active sub-markets

Market context

Sanfrecce Hiroshima will face Nagoya Grampus in a J1 League fixture on 23 May 2026, with the market currently pricing the match at 100% implied probability for settlement. This reflects near-certainty that the fixture will occur as scheduled, though the underlying match outcome remains unresolved. The settlement window closes shortly after the scheduled kick-off, leaving minimal room for postponement or cancellation scenarios to affect pricing.

Historical precedent in J1 League scheduling shows fixture cancellations or major delays are rare outside extreme weather or infrastructure failure. Both clubs maintain stable operational status within Japan's top division, and neither has faced recent fixture-list disruptions. The 100% probability suggests the market has essentially priced out weather, administrative, or injury-related postponement risks entirely—a reasonable baseline given Japan's May climate and the professional standards of J1 operations. However, this leaves no buffer for unforeseen circumstances that could theoretically delay or relocate the match.

Traders monitoring this market should track official J1 League announcements regarding venue confirmation and any weather alerts in the Hiroshima or Nagoya regions in the week preceding the fixture. Recent J1 administrative communications typically confirm match schedules 7–10 days in advance. Squad injury reports for key players, whilst affecting match outcome predictions, would not alter settlement conditions. The current pricing reflects consensus that the fixture itself is administratively certain; any value would lie in identifying scenarios where postponement becomes plausible, though such scenarios appear priced at negligible probability.

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 PolyGram, 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?

PolyGram 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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.