Resolution criteria on PolyGram: In the upcoming J2 100 Year Vision League game between Roasso Kumamoto and FC Ryūkyū, scheduled for May 10, 2026 at 1:00 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
| Roasso Kumamoto | 0% YES | 100% NO |
| Draw | 0% YES | 100% NO |
| FC Ryūkyū | 100% YES | 0% NO |
Roasso Kumamoto will host FC Ryūkyū in a J2 League fixture on 10 May 2026, with settlement determined by the halftime scoreline after 45 minutes plus stoppage time. The match kicks off at 1:00 AM ET, placing it in the early morning window for Western traders. Current Polymarket order book pricing reflects 0% implied probability for the YES outcome, suggesting negligible market conviction around this specific halftime result at present.
J2 League matches historically produce varied halftime outcomes, though the distribution depends heavily on team attacking intent and defensive stability in opening periods. Roasso Kumamoto and FC Ryūkyū represent mid-table competition within Japan's second tier, where early goals remain relatively uncommon compared to top-flight fixtures. Comparable halftime markets in J2 fixtures typically see probabilities cluster between 15–35% for home advantage scenarios, with draw outcomes frequently commanding 25–40% of implied probability mass. The current 0% reading suggests either extremely thin initial liquidity or genuine market scepticism about this particular outcome materialising.
Traders should monitor team news releases and official J2 League communications regarding squad availability, recent form trajectories, and any tactical adjustments announced closer to match day. Weather conditions in Kumamoto on 10 May could influence early-game tempo. The settlement window closes at 05:00 UTC on 10 May, providing a narrow window for position adjustment once halftime approaches. Early liquidity entry may shift probabilities substantially as the fixture date approaches and Western market participation increases.
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 "Roasso Kumamoto vs. FC Ryūkyū - 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.
$333 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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