Phoenix Mercury vs. Chicago Sky

Platform comparison

Market context

The Phoenix Mercury visit the Chicago Sky in a WNBA regular-season game that settles on the final score, including overtime, with postponements keeping the market open and a cancellation without a make-up game resolving 50-50. With the crowd price at 55% on Phoenix, the market is only modestly tilted, which is consistent with a game where the better historical side is not the clear short-term form leader. Phoenix has taken the more recent head-to-heads overall, including a 91-83 win on 15 May and a 108-104 result in April, but Chicago won the most recent meeting, 77-66 on 7 July.[2][4][7]

For a power-user approach, this is the kind of market where a bot or workflow should key off live status, line-up confirmation and game-state rather than raw pre-match sentiment. ESPN lists Chicago at 11-18 and Phoenix at 11-19, with the Sky 7-7 at home and the Mercury 6-9 away; ESPN’s preview also shows Chicago averaging 89.9 points over its last 10 and Phoenix 82.7, while the Mercury have still covered some recent gaps in higher-variance scoring runs through Kahleah Copper and DeWanna Bonner.[10][13] Those inputs matter because a small change in projected pace or availability can move win probability quickly in a market priced close to even.[10][13]

The main catalysts to watch are the official injury report, any late scratch, and whether the scheduled 9 p.m. EDT tip is delayed or pushed back, since the contract stays open if the game is postponed.[3] Chicago’s recent form also adds a useful dependency for conditional orders: the Sky entered after an 84-83 win over Las Vegas, while Phoenix came in after a 94-92 loss to New York, so a live trader would likely watch early shot quality, foul trouble and whether either team’s recent scoring trend carries into the first quarter.[8][10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Review UK, which mirrors the Polymarket order book directly.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.

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.