Trade: Rio Ave FC vs. Sporting CP - Exact Score
Resolution criteria on PolyGram: In the upcoming Primeira Liga game between Rio Ave FC and Sporting CP, scheduled for May 11, 2026 at 3:15 PM ET: This market will resolve based on the final score of the Rio Ave FC vs. Sporting CP match originally scheduled for May 11, 2026 at 3:15 PM ET, considering only the result at the end of 90 minutes of regulation plus stoppage time; extra time and penalty shoot-outs are excluded. If the actual score is not one of the explicitly listed outcomes, the market resolves to "Any Other Score." If the match is postponed, the market will remain open until it is completed; if it is canceled with no make-up game, the market resolves to "0-0." The primary resolution source for this market will…
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.
- Liquidity
- $47K
- Total Volume
- $58
- 24h Volume
- $28
- Open Interest
- $58
Market outcomes
| Exact Score: 0-0 | 0% YES | 100% NO |
| Exact Score: 0-1 | 0% YES | 100% NO |
| Exact Score: 1-0 | 0% YES | 100% NO |
| Exact Score: 0-2 | 0% YES | 100% NO |
| Exact Score: 1-1 | 0% YES | 100% NO |
| Exact Score: 1-2 | 0% YES | 100% NO |
| Exact Score: 3-0 | 0% YES | 100% NO |
| Exact Score: 2-0 | 0% YES | 100% NO |
Market context
Rio Ave FC will host Sporting CP in a Primeira Liga fixture on 11 May 2026, with the match commencing at 3:15 PM ET. The market resolves on the final score at the conclusion of 90 minutes plus stoppage time, excluding extra time and penalty shootouts. Settlement occurs at 19:15 UTC on the same date. Any outcome not explicitly listed in the market's options resolves to "Any Other Score."
The 0% implied probability across Polymarket's order book reflects the fragmented nature of exact-score betting in football. With dozens of possible outcomes—from 0-0 draws to high-scoring results—liquidity concentrates thinly across individual scorelines rather than on any single result. Historical precedent shows exact-score markets in Portuguese top-flight fixtures typically distribute probability across 8-12 plausible outcomes, with the modal result (often 1-1 or 2-1) rarely exceeding 15% implied probability. The current zero reading indicates either minimal order book depth at present or that no traders have yet posted competitive bids on any specific scoreline.
Traders should monitor team news regarding injuries and suspensions ahead of the fixture, particularly for Sporting CP's attacking personnel. Sporting typically averages 2.1 goals per match in the Primeira Liga, whilst Rio Ave's defensive record varies considerably depending on squad rotation. Fixture scheduling density in May—with potential European competition implications—may affect squad rotation decisions. Weather conditions and pitch state at Rio Ave's stadium could influence match tempo and scoring patterns.
Wikipedia Context
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Rio Ave F.C.Rio Ave Futebol Clube, commonly known as Rio Ave, is a Portuguese professional football club based in Vila do Conde, that competes in the Primeira Liga. The club is named after the Ave River, which flows through the town and into the Atlantic Ocean.
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Rio Ave F.C. (futsal)
Rio Ave Futebol Clube is a futsal team based in the city of Vila do Conde, Portugal, that plays in the Portuguese Futsal First Division. It is a part of the Rio Ave sports club.
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Rio de JaneiroRio de Janeiro, also known simply as Rio, is the capital of the state of Rio de Janeiro. It is the second-most-populous city in Brazil after São Paulo and the sixth-most-populous city in the Americas.
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Rio FerdinandRio Gavin Ferdinand is an English former professional footballer who played as a centre-back, and was a television pundit for TNT Sports, for ten years. He played 81 times for the England national team between 1997 and 2011, and was a member of three FIFA World Cup squads. He is one of the most decorated English footballers of all time, regarded by many as o
Resolution source
This market settles from the official outcome published at https://www.ligaportugal.pt/. A proposer submits the final result to the UMA optimistic oracle on Polygon; the two-hour dispute window closes and payouts clear in USDC.
How to trade this market step by step
The mechanics for trading "Rio Ave FC vs. Sporting CP - Exact Score" 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.
- Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
- Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
- Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
- Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
- Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
- Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.
How active is this market?
$58 in lifetime turnover and $47K of resting liquidity puts this market in the below the median by volume for sports contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.
Last 24 hours alone saw $28 in turnover, well above the lifetime daily-average for this market — a clear sign of news catalysing trader activity right now.
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.
Key terms
- YES / NO share
- A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.
- CLOB
- Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.
- Liquidity
- USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.
- UMA optimistic oracle
- The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.
- Slippage
- The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.
- Conditional token
- ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.
Frequently asked questions
How does this market resolve?
Resolution is sourced from https://www.ligaportugal.pt/. Settlement is executed by the UMA optimistic oracle on Polygon, with a 2-hour dispute window before payouts clear.
When does this market close?
This prediction market is scheduled to close on 11 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.
How can I trade on "Rio Ave FC vs. Sporting CP - Exact Score"?
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.
What happens when the market resolves?
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.
Risk and regulatory note
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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