Sports

Trade: Seattle Storm vs. Indiana Fever

38% YES 62% NO

Opened · Settles

Resolution criteria on PolyGram: In the upcoming WNBA game, scheduled for May 17 at 6:00PM ET: If the Seattle Storm win, the market will resolve to "Seattle Storm". If the Indiana Fever win, the market will resolve to "Indiana Fever". 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
$1K
Total Volume
—
24h Volume
—
Open Interest
—
Trade this market on PolyGram →

Market outcomes

Seattle Storm vs. Indiana Fever 38% YES63% NO

Market context

The Seattle Storm and Indiana Fever will meet on 17 May at 6:00 PM ET in a regular-season WNBA matchup. The current order book on Polymarket prices Seattle's victory at 38 per cent, reflecting modest confidence in an Indiana win. This probability has formed through active trading across the market's depth, with the spread between bid and ask prices narrowing as the fixture date approaches.

Historically, Seattle has maintained stronger regular-season performance than Indiana over recent seasons, though the Fever have shown marked improvement following their 2023 draft acquisitions. The 38 per cent implied probability for a Seattle win suggests traders are pricing in Indiana's upward trajectory and home-court advantage if applicable. Comparable WNBA matchups between teams of similar calibre typically settle in the 40–60 per cent range, making this valuation consistent with market expectations for a competitive contest.

Traders should monitor roster availability in the days preceding the fixture, particularly injury reports for key players on both sides. Recent WNBA scheduling has occasionally produced last-minute postponements due to travel logistics or player health protocols. The settlement window closes at 22:00 UTC on 17 May, allowing approximately 16 hours post-game for final confirmation. Any official cancellation without a rescheduled make-up game would trigger a 50-50 resolution, a tail risk currently priced into the order book's wider spreads.

Wikipedia Context

  • Seattle Storm
    Seattle Storm

    The Seattle Storm are an American professional basketball team based in Seattle. The Storm compete in the Women's National Basketball Association (WNBA) as a member of the Western Conference. The team was founded by Ginger Ackerley and her husband Barry ahead of the 2000 season. The team is currently owned by Force 10 Hoops LLC, which is composed of Seattle

  • Seattle Storm (soccer)

    Football Club Seattle Storm, also known as the F.C. Seattle Storm, was an American soccer team based in Seattle, Washington. F.C. Seattle was a "super club" created to provide Seattle players an opportunity to play at a higher level than the local recreational and semi-pro leagues. In addition to playing exhibition matches against top international teams, F.

  • Seattle Torrent
    Seattle Torrent

    The Seattle Torrent are a professional ice hockey team based in Seattle that compete in the Professional Women's Hockey League (PWHL). They began play in the 2025–26 season, as did the Vancouver Goldeneyes, the PWHL's first two expansion teams. The team plays home games at Climate Pledge Arena, which is also home to the Seattle Kraken of the National Hockey

  • Seattle Streetcar
    Seattle Streetcar

    The Seattle Streetcar is a system of two modern streetcar lines operating in the city of Seattle, Washington. The South Lake Union line opened first in 2007 and was followed by the First Hill line in 2016. The two lines are unconnected, but share similar characteristics: frequent service, station amenities, and vehicles. Streetcars typically arrive every 10–

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 "Seattle Storm vs. Indiana Fever" 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 38% YES, you'll receive shares that pay $263 if YES resolves true — a 163% 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?

$0 in lifetime turnover and $1K 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.

See the full prediction-market glossary →

Frequently asked questions

What is the current probability for "Seattle Storm vs. Indiana Fever"?

As of today, traders on Polymarket price this outcome at 38%. 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 17 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 "Seattle Storm vs. Indiana Fever"?

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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