Resolution criteria on PolyGram: More markets for the J1 100 Year Vision League game, scheduled for May 6 at 1:00 AM ET.
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 (-1.5) | 0% YES | 100% NO |
| Gamba Ōsaka (-1.5) | 0% YES | 100% NO |
| Nagoya Grampus (-2.5) | 0% YES | 100% NO |
| Gamba Ōsaka (-2.5) | 0% YES | 100% NO |
| O/U 1.5 | 100% YES | 0% NO |
| O/U 2.5 | 100% YES | 0% NO |
| O/U 3.5 | 0% YES | 100% NO |
| O/U 4.5 | 0% YES | 100% NO |
Nagoya Grampus and Gamba Ōsaka will meet on 6 May 2026 in a J1 League fixture, part of the J-League's centenary season initiative. The match is scheduled for 1:00 AM ET, reflecting the Japan Standard Time slot. This market aggregates secondary betting opportunities tied to the fixture beyond standard match outcomes, with settlement occurring at 05:00 UTC on the settlement date.
The 0% implied probability on Polymarket's order book reflects minimal liquidity or positioning in these secondary markets at present. Comparable J1 League fixtures show variable trading activity depending on fixture prominence and international interest; mid-season matches between mid-table clubs typically attract lower volume than title-race or relegation-critical encounters. Gamba Ōsaka and Nagoya Grampus occupy mid-table positions in recent seasons, which contextualises the current sparse order book. Historical precedent suggests such markets may see activity spikes closer to kickoff or following team news.
Traders should monitor official J-League announcements regarding squad availability, particularly injury updates in the fortnight before the fixture. Weather conditions in Nagoya during early May and any fixture rescheduling announcements will affect market dynamics. The J1 100 Year Vision League designation may influence betting patterns if it carries special regulatory or promotional status. Current zero probability likely reflects absence of active market-makers rather than consensus view; order book depth will determine whether meaningful trading emerges as the settlement window approaches.
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. Gamba Ōsaka - More Markets" 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.
$44K in lifetime turnover and $0 of resting liquidity puts this market in the around 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 around 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 6 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.
Explore more prediction market odds and trading opportunities on PolyGram: