Chicago White Sox vs. Boston Red Sox

Platform comparison

Market context

The Chicago White Sox and Boston Red Sox are scheduled to play a regular-season MLB game, and this market pays out to the side that wins outright; in prediction-market terms, a **YES** share is a claim that the named team wins, while a **NO** share is a claim that it does not. If the game is postponed, the market stays open until the makeup game is finished; if it is cancelled with no makeup, or ends in a tie, the market settles 50-50.

The current crowd-implied probability of 45% for Chicago is close to a coin flip, which fits a matchup where recent form and run prevention point in different directions. ESPN’s game preview shows Chicago at 47-42 and Boston at 40-48, with the White Sox carrying a stronger batting line and better overall record, but Boston showing a lower team ERA and WHIP[1]. Recent head-to-head results also matter: Boston beat Chicago 5-0 and 8-1 in early July, and those outcomes help explain why traders may not price Chicago much above even money despite its stronger record[4][7][11].

For traders, the main catalysts are the confirmed starter, late lineup changes, and any postponement risk around the 7:10 pm ET first pitch. The market’s settlement depends on the official final result, so a rain delay that pushes the game back would extend the market, while a cancellation without a make-up would trigger a split settlement[1]. In practical terms, the biggest near-term swing factors are whether Chicago’s offence can translate its higher scoring output into runs against Boston’s better pitching numbers, and whether Boston can repeat the form it showed in the recent series between these clubs[1][4].

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 Prediction Market UK, which mirrors the Polymarket order book directly.

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?

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

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?

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