Connecticut Sun vs. Seattle Storm

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Active sub-markets

Market context

The Connecticut Sun travel to Seattle on 22 May for a regular-season WNBA matchup against the Storm. The 0% implied probability on a Sun victory reflects either a substantial gap in current roster strength or significant injury concerns affecting Connecticut's availability for this fixture.

Seattle's recent form and depth advantage typically favour the Storm in May matchups. The franchise has maintained competitive rosters built around established guards and wing play, whilst Connecticut has historically struggled in road contests against Western Conference opponents with strong defensive schemes. Head-to-head records between these franchises show Seattle winning the majority of recent encounters, though WNBA parity means single-game outcomes remain volatile. The 0% reading suggests traders are pricing in either a major Connecticut injury announcement or treating this as a near-certain Storm victory based on current season trajectory and roster composition.

Traders should monitor Connecticut's injury report through to tip-off, particularly regarding key perimeter or interior contributors. Any late withdrawal of a starter would reinforce the current probability, whilst unexpected availability of a previously sidelined player could shift sentiment. Seattle's own availability status matters less given the current pricing, but confirmation of full-strength rosters for both sides by 21 May would clarify whether the extreme probability reflects genuine roster imbalance or market inefficiency. The settlement window closes at 02:00 UTC on 23 May, allowing for potential postponement scenarios that would keep the market open pending rescheduling.

Methodology

This page reviews Connecticut Sun vs. Seattle Storm across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.