Resolution criteria on PolyGram: This event is for the upcoming Chinese Super League game, scheduled for Saturday, May 30, 2026 between Qingdao Xihaian FC and Shanghai Shenhua FC.
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
| Qingdao Xihaian FC | 46% YES | 54% NO |
| Draw (Qingdao Xihaian FC vs. Shanghai Shenhua FC) | 45% YES | 56% NO |
| Shanghai Shenhua FC | 46% YES | 55% NO |
Shanghai Shenhua will travel to Qingdao to face Xihaian FC on Saturday, 30 May 2026 in a Chinese Super League fixture. The current order book on Polymarket reflects a 46% implied probability of a Shenhua victory, pricing the away side as slight underdogs despite their historical status as one of China's most resourced clubs. Settlement occurs at 10:00 UTC on match day.
Shanghai Shenhua's recent competitive record provides context for the current pricing. The club has won the Chinese Super League twice in the past decade and regularly competes in AFC Champions League qualification, though their form has been inconsistent since 2023. Qingdao Xihaian, by contrast, has operated as a mid-table side with limited European competition experience. Away fixtures in the Chinese Super League carry elevated variance; travel fatigue and fixture congestion in May—when the season typically reaches its midpoint—have historically favoured home sides at rates above 55% win probability.
Traders should monitor team news through late May regarding squad availability, particularly injury status for Shanghai's attacking players and Qingdao's defensive line. Fixture scheduling announcements from the Chinese Football Association may shift preparation time between the two clubs. Recent reporting from Chinese sports media outlets has highlighted Shanghai's ongoing recruitment activity and managerial stability, factors that could influence match-day performance. The settlement window closes at match kick-off, leaving no post-match ambiguity.
This market settles from the official outcome published at https://www.csl-china.com/. 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 "Qingdao Xihaian FC vs. Shanghai Shenhua FC" 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 $2K 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.csl-china.com/. 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 30 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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