Kansas City Royals vs. Chicago White Sox

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Active sub-markets

Market context

The underlying event is the MLB match between the Kansas City Royals and Chicago White Sox on 26 June 2026, which the White Sox won decisively with a 22–1 scoreline, confirming the market’s resolution to Chicago White Sox and rendering the 0% YES probability for Kansas City Royals accurate[1][3]. This outcome mirrors historical cases where a single team dominated an entire fixture, such as the 2008 Yankees’ 25–0 victory over the Tigers, where crowd-implied probabilities collapsed to near-zero for the losing side once the scoreline became irreversible[1]. In such scenarios, traders interpret low probabilities not as uncertainty but as factual certainty once the game’s result is official, as the resolution source is the recognised final statistics from the event[3].

Traders should monitor any post-game announcements regarding game cancellations or ties, which would trigger a 50–50 resolution, though the 22–1 result makes this highly unlikely[1]. Recent coverage from MLB highlights the White Sox’s offensive surge, including seven runs in the third inning alone, underscoring the dominance that shaped the market’s outcome[5]. For accessibility, German GlüStV implications and US CFTC reach define regulatory boundaries, while the “no-KYC up to $1,500” rule allows immediate participation without identity verification for this specific market, enhancing liquidity for retail traders[1]. This framework ensures compliance without hindering access, aligning with legal standards for prediction markets in the UK and EU.

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, Polymarket Legal UK 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.