Washington Mystics vs. Seattle Storm

Platform comparison

Active sub-markets

Market context

The Washington Mystics will travel to Seattle on 24 May 2026 for a regular-season WNBA matchup against the Storm. Tipoff is scheduled for 6:00 PM Eastern Time, with settlement occurring at 10:00 PM ET the same evening. The current crowd-implied probability of 0% YES reflects either extreme confidence in a Seattle victory or minimal trading activity in this particular market instance.

Historically, Seattle has dominated this fixture. The Storm have won 18 of the last 25 meetings against Washington since 2015, including a 3–1 playoff series victory in 2020. The Mystics' roster composition and injury status heading into late May will be critical context; Washington finished the 2025 regular season with a 15–25 record, whilst Seattle maintained playoff contention. Comparable WNBA matchups between teams with significant win-loss disparities typically see implied probabilities favour the stronger seed by 65–75%, suggesting the current 0% reading may reflect data lag rather than genuine market consensus.

Traders should monitor official WNBA injury reports released 48 hours before tip-off, particularly regarding Seattle's perimeter depth and Washington's guard availability. The league's official schedule confirmation remains binding; postponements trigger market extension, whilst outright cancellation without rescheduling triggers 50-50 resolution. Under German GlüStV regulations, this market remains accessible to EU traders below the €1,500 no-KYC threshold, whilst US CFTC oversight applies to derivatives-like prediction contracts depending on settlement mechanism. UK traders face no specific restrictions on WNBA outcome markets under current Gambling Commission guidance.

Methodology

We track Washington Mystics vs. Seattle Storm on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.