Chicago Sky vs. Atlanta Dream

Platform comparison

Market context

The Chicago Sky versus Atlanta Dream WNBA clash on 19 July has already concluded, with the Dream securing a 93–91 victory via Jordin Canada’s buzzer-beating layup. The market’s 0% YES probability for a Chicago Sky win reflects this settled outcome, as the game result is now a historical fact rather than a forecast.

Historically, prediction markets tied to completed sporting events resolve immediately once the final score is confirmed, rendering any lingering probability for the losing side effectively zero. Comparable cases from recent WNBA seasons show that once a game ends—especially one decided by a last-second play like Canada’s layup—trading volume on the losing team’s win collapses instantly, with no meaningful reopenings unless a cancellation occurs, which did not happen here.

Traders should monitor official WNBA settlement notices confirming the game’s finality and any injury updates regarding Angel Reese, who exited Sunday’s contest with a knee injury and could impact future matchups. With the settlement window ending 2026-07-19T20:00:00Z already passed relative to the game date, no new catalysts will alter the resolution; the market is functionally closed pending formal confirmation of the Dream’s win [1][2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Chicago Sky vs. Atlanta Dream across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.