Resolution criteria on PolyGram: More markets for the J2 100 Year Vision League game, scheduled for May 16 at 3:00 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
| Ventforet Kōfu (-1.5) | 32% YES | 69% NO |
| FC Gifu (-1.5) | 34% YES | 67% NO |
| Ventforet Kōfu (-2.5) | 27% YES | 73% NO |
| FC Gifu (-2.5) | 29% YES | 71% NO |
| O/U 1.5 | 66% YES | 35% NO |
| O/U 2.5 | 55% YES | 45% NO |
| O/U 3.5 | 36% YES | 65% NO |
| O/U 4.5 | 28% YES | 72% NO |
Ventforet Kōfu will face FC Gifu on 16 May 2026 in a J2 League fixture, with settlement determined by the availability of additional betting markets for this match. The current order book on Polymarket reflects a 32% implied probability for supplementary markets materialising, suggesting traders assess meaningful uncertainty around whether secondary wagering options will be offered alongside the primary match outcome.
J2 League fixtures typically attract modest ancillary market creation compared to top-tier J1 competitions or European leagues. Historical precedent shows that mid-table matchups between clubs of comparable stature—Ventforet Kōfu and FC Gifu both occupy mid-table territory—generate fewer derivative markets than fixtures involving promotion contenders or relegation-threatened sides. The current probability discount reflects this pattern: traders are pricing in a baseline expectation that only core markets (1X2, over/under) will be listed, with supplementary options (first goalscorer, corner totals, player performance) remaining unavailable.
Market creation decisions depend on Polymarket's liquidity assessments and operator discretion in the days preceding kick-off. J2 League coverage has expanded incrementally through 2024–2025, though scheduling announcements and fixture confirmation typically occur within two weeks of match day. Traders should monitor whether Polymarket's operator signals intent to expand coverage for this fixture, and whether either club's recent form or injury news generates sufficient trading interest to justify additional market deployment. The settlement window closes 16 May at 07:00 UTC, allowing limited time for late-stage market expansion decisions.
Ventforet Kofu is a Japanese professional football club from Kōfu in Yamanashi Prefecture. The team currently competes in the J2 League, Japanese second tier of professional football, hosting their home matches in the JIT Recycle Ink Stadium, located in Kōfu.
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 "Ventforet Kōfu vs. FC Gifu - 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.
$0 in lifetime turnover and $8K 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 16 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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