PortlandFire vs. Chicago Sky

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Active sub-markets

Market context

The underlying event is the WNBA match between the Portland Fire and the Chicago Sky, scheduled for 8:00 PM ET on 24 June at Wintrust Arena in Chicago. The Portland Fire, currently 8–9 with a strong away record, face the Chicago Sky, who sit at 4–12 and are attempting to end a six-game losing streak [6][7]. The market currently implies a 0% probability that Portland will win, suggesting the crowd expects a Chicago victory despite their poor form [1].

Historically, similar 0% implied probabilities in WNBA markets have often preceded upsets when a struggling team plays at home against an opponent with a weaker away record, though the Fire’s 2–4 away split complicates this narrative [1]. In the May 9 rematch, Chicago defeated Portland 98–83, establishing a psychological edge that may be driving the current pricing [3]. Programmatically, a trader would treat this as a conditional order setup, monitoring if the 0% probability shifts before game time, as such extremes rarely hold if line movement occurs.

Key catalysts include the Sky’s motivation to break their losing streak and any late-injury announcements for either squad, which could alter the spread of −3.5 favouring Chicago [4]. Traders should watch pre-game press conferences and official injury reports released by the WNBA, as a single player’s absence could invalidate the current pricing [7]. Recent coverage notes the Sky’s need to regroup, making their home performance a critical dependency for the market outcome [6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews PortlandFire vs. Chicago Sky 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 Polymarket Bot UK — 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 Polymarket Bot UK, 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.

Is this market available outside the US?

Polymarket Bot UK 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.

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 Polymarket Bot UK?

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

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.