Pronóstico: PortlandFire vs. Chicago Sky

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Market context

The Portland Fire and Chicago Sky are set to face off in a WNBA matchup on 26 June at 7:30pm ET, with the market currently pricing a Portland win at 0% probability. On Polymarket, this contract trades as a conditional token on the Polygon network, settled in USDC, where the binary outcome resolves strictly to the winner’s name or remains open if postponed. The zero-per-cent price reflects not just a lack of confidence but a structural alignment with the game’s odds, where Chicago holds a clear +5.5 point advantage and a -115 moneyline, suggesting the Sky are heavily favoured to cover the spread and win outright[1][2].

Historically, similar WNBA markets have resolved to the favoured team when the spread is covered by five points or more, as seen in the Chicago Sky’s 98–83 victory over Portland earlier in May, where Skylar Diggins scored 21 points and the Sky dominated the rebounding battle[6]. In those cases, the market’s implied probability shifted rapidly from near-even to near-zero for the underdog once the spread was confirmed, mirroring today’s pricing where the Fire’s win chance is effectively nullified by the Sky’s consistent performance against them.

Traders should monitor the final box score and any late-injury announcements, as the Sky’s ability to cover the +5.5 spread hinges on maintaining their defensive intensity and rebounding edge, both critical in close WNBA games[2]. The Athletic notes that the game’s total is set at 173.5 points, meaning a high-scoring affair could test the Sky’s stamina, but their recent form suggests they will control the pace and secure the win[7]. No major schedule changes are expected, and the game is confirmed for Wintrust Arena, where ticket prices start at $21, indicating solid fan turnout and stable conditions for the match[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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'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.

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.