PortlandFire vs. Chicago Sky

Platform comparison

Active sub-markets

Market context

The underlying event is a WNBA matchup between the Portland Fire and Chicago Sky, scheduled for 7:30PM ET on 26 June, where the market resolves to the winner based on the final score including overtime. With the crowd-implied probability for a Portland Fire win sitting at 0%, the market heavily favours Chicago, a sentiment echoed by the -6.5 point spread and the 173.5 total points line[1][2].

Historical precedents in sports betting often show that extreme probabilities like 0% can shift if unforeseen variables emerge, much like how Eurovision’s 50/50 jury and televote split occasionally overturns public expectations, or how the Oscars’ preferential ballot for Best Picture can reverse early leads. In WNBA history, teams with heavy spreads have occasionally faltered due to late-game injuries or officiating inconsistencies, suggesting that a 0% probability is rarely absolute until the final whistle.

Traders should monitor official injury reports and lineup announcements before the game, as any late withdrawal of a key player could alter the spread dynamics significantly. Recent coverage from theScore notes that Chicago must win by five points or more to cover, making player availability critical to the outcome[1]. Additionally, watch for weather-related delays or venue issues, though these are less likely in an indoor arena, and track any pre-game commentary from coaches regarding rotation strategies, as these can signal whether Chicago intends to push for a large margin or play conservatively.

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

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.

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.