Connecticut Sun vs. Seattle Storm

Platform comparison

Active sub-markets

Market context

Polymarket is pricing this contract at 100% YES, so the on-chain USDC market on Polygon is effectively assuming the listed result is settled already in favour of the named side. Under Polymarket’s conditional-token structure, the final outcome is what matters, not the scoreline or live market noise, and the settlement window closing at 2026-05-21T02:00:00Z means traders are really watching for completion, postponement, or a formal cancellation notice rather than the in-game narrative.

Recent and historical matchups do not show a one-sided edge: Connecticut and Seattle have met 53 times since 2005, with the Sun winning 30 and the Storm 23, and the series has been close on points overall. The most recent completed meeting in the available results was Seattle’s 97-81 win on 27 June 2025, while earlier 2025 games were split more tightly, including Seattle’s 79-59 win on 4 May and a Connecticut 80-78 win on 28 July. That sort of mixed head-to-head record is useful context when a market is pinned at certainty, because it suggests the price is likely reflecting market structure or stale information rather than a balanced read of team strength.

For a trader, the key catalyst is the actual game status and any league or arena announcement before tip-off. 365Scores lists the fixture for Thursday, 21 May 2026 at 02:00, which is consistent with a scheduled start, but the contract only changes if the game is postponed, cancelled, or completed. The practical watchpoints are WNBA and team communications, plus any schedule disruption that could push the contest beyond the settlement window or force a no-game resolution.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Connecticut Sun 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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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 does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

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.