Trade: Connecticut Sun vs. Seattle Storm
Resolution criteria on PolyGram: In the upcoming WNBA game, scheduled for May 20 at 10:00PM ET: If the Connecticut Sun win, the market will resolve to "Connecticut Sun". If the Seattle Storm win, the market will resolve to "Seattle Storm". If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50.
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
- $783
- Total Volume
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- 24h Volume
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- Open Interest
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Market outcomes
| Connecticut Sun vs. Seattle Storm | 40% YES | 60% NO |
Market context
The Connecticut Sun will face the Seattle Storm in a WNBA regular season matchup on 20 May at 10:00 PM ET. The Polymarket order book currently reflects a 40% implied probability for a Connecticut Sun victory, pricing Seattle as the favoured side. This probability formation follows typical WNBA betting patterns where home-court advantage and recent form substantially influence pricing in the opening days of a season.
Connecticut and Seattle have maintained competitive rosters in recent WNBA seasons, though Seattle has historically held a slight edge in head-to-head matchups. The 40% probability assigned to Connecticut suggests the market is weighting Seattle's recent performance and roster composition more heavily. Comparable WNBA matchups between similarly-ranked teams typically see implied probabilities cluster between 35–45% for the underdog, making the current pricing consistent with standard market behaviour for games between evenly-matched franchises.
Traders should monitor roster updates and injury reports in the days preceding the fixture, particularly regarding key players on either side. The game's location—whether played in Connecticut or Seattle—carries material significance for the probability assessment, as WNBA home teams win at rates substantially above 50%. Schedule confirmations and any weather-related considerations affecting travel should be tracked through official WNBA communications. The settlement window closes 21 May at 02:00:00 UTC, allowing approximately 26 hours post-game for final resolution.
Wikipedia Context
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Connecticut SunThe Connecticut Sun are an American professional basketball team based in Uncasville, Connecticut. The Sun compete in the Women's National Basketball Association (WNBA) as a member of the Eastern Conference. The team is currently the only major league professional sports team based in Connecticut.
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Connecticut Sun all-time roster
The following is a list of players, both past and current, who were under contract with the Connecticut Sun in the WNBA during the regular season.
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University of ConnecticutThe University of Connecticut (UConn) is a public land-grant research university system with its main campus in Storrs, Connecticut, United States. It was founded in 1881 as the Storrs Agricultural School, named after two benefactors. In 1893, the school became a public land grant college, then took its current name in 1939. Over the following decade, social
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Connecticut's 3rd congressional districtConnecticut's 3rd congressional district is a congressional district in the U.S. state of Connecticut. Located in the central part of the state, the district includes the city of New Haven and its surrounding suburbs.
Resolution source
This market settles from the official outcome published at https://www.wnba.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 "Connecticut Sun vs. Seattle Storm" 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 40% YES, you'll receive shares that pay $250 if YES resolves true — a 150% 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 $783 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
What is the current probability for "Connecticut Sun vs. Seattle Storm"?
As of today, traders on Polymarket price this outcome at 40%. The number updates continuously as the order book clears. PolyGram mirrors the same live odds with locale-aware formatting and USDC settlement.
How does this market resolve?
Resolution is sourced from https://www.wnba.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 21 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 "Connecticut Sun vs. Seattle Storm"?
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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