Resolution criteria on PolyGram: In the upcoming J1 100 Year Vision League game between Nagoya Grampus and Kyōto Sanga FC, scheduled for May 10, 2026 at 3:00 AM ET: This event contains halftime result markets for home, draw, and away outcomes within the first 45 minutes of regular play plus stoppage time.
PolyGram is an on-chain prediction market where you trade YES or NO outcome shares with real USDC on Polygon. For this market, buy YES if you believe the event will happen, or NO if you think it won't. Your maximum loss is your stake — winning shares pay $1.00 each at resolution. Unlike sportsbooks, there is no house edge: prices are set by supply and demand from other traders and reflect the crowd's real-time probability.
Market outcomes
| Nagoya Grampus | 100% YES | 0% NO |
| Draw | 0% YES | 100% NO |
| Kyōto Sanga FC | 0% YES | 100% NO |
Nagoya Grampus will host Kyōto Sanga FC in a J1 League fixture on 10 May 2026, with settlement determined by the halftime scoreline after 45 minutes plus stoppage time. The current order book on Polymarket reflects a 100% implied probability for this halftime result market, indicating either extreme confidence in a particular outcome or minimal liquidity depth at present pricing levels. Settlement occurs at 07:00 UTC, approximately four hours after the 03:00 ET kick-off.
Halftime markets in J1 League fixtures historically show volatile probability shifts as team news and weather conditions emerge in the hours before matches. Nagoya Grampus finished the 2025 season in mid-table, whilst Kyōto Sanga has demonstrated inconsistent form across recent campaigns. Early-season May fixtures typically feature lower-scoring first halves than league averages, with defensive solidity prioritised before teams commit attacking resources. The 100% probability reading suggests either a single large position on one outcome or insufficient competing orders to establish a genuine two-sided market.
Traders should monitor official team lineups released 24–48 hours before kick-off, particularly regarding key defensive or attacking personnel absences. Weather forecasts for Nagoya on match day may influence first-half tempo and passing accuracy. Recent J1 scheduling announcements and any mid-week fixture congestion affecting either side's preparation warrant attention. The settlement window closing at 07:00 UTC leaves minimal arbitrage opportunity post-match, so pre-match positioning becomes critical for managing execution risk.
This market settles from the official outcome published at https://www.jleague.jp/en/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
The mechanics for trading "Nagoya Grampus vs. Kyōto Sanga FC - Halftime Result" are the same as any other PolyGram sporting event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.
$385 in lifetime turnover and $0 of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is thin — large orders may need to be split across the book or executed as limit orders.
The market has been open for under a month — fresh enough that information asymmetry remains a real factor.
Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.
Resolution is sourced from https://www.jleague.jp/en/. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
This prediction market is scheduled to close on 10 May 2026. After the resolving event occurs, settlement typically clears within 24 hours once the UMA optimistic oracle confirms the outcome. All payouts are in USDC on the Polygon network.
To trade on this prediction market, create a free PolyGram account at polygram.ink, deposit USDC via Polygon, and place a YES or NO order on the outcome you believe in. You can learn more on our how-it-works page. Your maximum loss is limited to your stake — there is no leverage or margin.
When the outcome is determined, winning YES shares pay out $1.00 each in USDC, while losing shares pay $0. Settlement is handled by the UMA optimistic oracle on Polygon — a proposer submits the result, a two-hour dispute window opens, and if uncontested, payouts are distributed automatically. You can withdraw your winnings to any Polygon wallet.
Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.
Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.
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