Sports

Trade: Connecticut Sun vs. Portland Fire

53% YES 47% NO

Opened · Settles

Resolution criteria on PolyGram: In the upcoming WNBA game, scheduled for May 18 at 10:00PM ET: If the Connecticut Sun win, the market will resolve to "Connecticut Sun". If the Portland Fire win, the market will resolve to "Portland Fire". 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
$310
Total Volume
$20K
24h Volume
$20K
Open Interest
—
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Market outcomes

Connecticut Sun vs. Portland Fire 53% YES48% NO

Market context

The Connecticut Sun face the Portland Fire in a WNBA regular season matchup scheduled for 18 May at 10:00 PM ET. The current order book on Polymarket reflects a 49% implied probability for a Connecticut Sun victory, suggesting near-parity between the two sides in trader assessments. This probability emerges from the cumulative bids and asks across the market's liquidity pools, with the tight odds indicating genuine uncertainty about the outcome.

Connecticut and Portland have established competitive histories in recent WNBA seasons, with both franchises capable of sustained runs. The Sun have demonstrated consistency in regular season play, whilst Portland has shown volatility depending on roster health and form. Historical matchups between these teams typically produce competitive contests, and the 49% probability aligns with expectations when two evenly matched opponents meet. Comparable games between mid-tier WNBA franchises generally settle around 45–55% ranges, making the current pricing consistent with baseline expectations rather than reflecting sharp information.

Traders should monitor roster updates through to game time, particularly injury reports affecting key players on either side. Scheduling changes remain possible given the compressed WNBA calendar, though cancellation without rescheduling would trigger the 50-50 resolution clause. Recent WNBA reporting from league sources typically confirms fixture status 48 hours prior to tip-off. The settlement window closes 19 May at 02:00 UTC, allowing sufficient time for game completion and official result confirmation. Trading activity may shift if either team announces significant personnel changes or if public injury information emerges in the days before play.

Wikipedia Context

  • Connecticut Sun
    Connecticut Sun

    The 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.

  • University of Connecticut
    University of Connecticut

    The 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

  • Connecticut's 2nd congressional district
    Connecticut's 2nd congressional district

    Connecticut's 2nd congressional district is a congressional district in the U.S. state of Connecticut. Located in the eastern part of the state, the district includes all of New London County, Tolland County, and Windham County, along with parts of Hartford, Middlesex, and New Haven counties. Principal cities include Enfield, Norwich, New London, and Groton.

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. Portland Fire" 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.

  1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
  2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
  3. 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.
  4. Size your position. If you stake 100 USDC at 53% YES, you'll receive shares that pay $189 if YES resolves true — a 89% gross return. If NO resolves, your shares are worth $0.
  5. 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.
  6. 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?

$20K in lifetime turnover and $310 of resting liquidity puts this market in the around 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.

Last 24 hours alone saw $20K 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.

See the full prediction-market glossary →

Frequently asked questions

What is the current probability for "Connecticut Sun vs. Portland Fire"?

As of today, traders on Polymarket price this outcome at 53%. 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 19 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. Portland Fire"?

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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