Trade: Deportivo Saprissa vs. CS Herediano
Resolution criteria on PolyGram: This event is for the upcoming Liga Promerica game, scheduled for Wednesday, May 13, 2026 between Deportivo Saprissa and CS Herediano.
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
- $3K
- Total Volume
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- 24h Volume
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- Open Interest
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Market outcomes
| Deportivo Saprissa | 51% YES | 50% NO |
| Draw (Deportivo Saprissa vs. CS Herediano) | 40% YES | 61% NO |
| CS Herediano | 35% YES | 65% NO |
Market context
Deportivo Saprissa will face CS Herediano in a Liga Promerica fixture on Wednesday, 13 May 2026. The current order book on Polymarket reflects a 51% implied probability for a Saprissa victory, suggesting near-parity between the two sides in market participants' assessment. This probability has emerged from active trading across the book, with the spread between bid and ask orders stabilising around this midpoint as of today's snapshot.
Saprissa and Herediano represent two of Costa Rica's most established clubs, with Saprissa holding a historical edge in domestic competition. However, recent seasons have seen the competitive gap narrow considerably. Herediano has strengthened its squad depth and tactical consistency, making road performances at Saprissa's San José base less predictable than historical patterns might suggest. The 51% reading reflects this competitive equilibrium rather than a strong favourite scenario.
Key variables for traders to monitor include team news regarding injuries or suspensions in the fortnight before kickoff, as Liga Promerica clubs often manage fixture congestion across domestic and regional competitions. Weather conditions in San José on match day—particularly rainfall, which can affect pitch conditions—have historically influenced outcomes in this fixture. Saprissa's home record this season and Herediano's recent form trajectory will likely drive any material shifts in the order book as the settlement window approaches on 14 May at 02:00 UTC.
Wikipedia Context
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Deportivo SaprissaDeportivo Saprissa is a Costa Rican sports club, mostly known for its football team. The club is based in San Juan de Tibás, San José, and play their home games at the Estadio Ricardo Saprissa Aymá. Their colours are burgundy and white. It is the main team representing the capital, but with the distinction of being massively followed throughout the whole cou
Resolution source
This market settles from the official outcome published at https://www.unafut.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.
How to trade this market step by step
The mechanics for trading "Deportivo Saprissa vs. CS Herediano" 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?
$0 in lifetime turnover and $3K 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.
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.unafut.com/. 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 14 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 "Deportivo Saprissa vs. CS Herediano"?
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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