Chicago White Sox vs. Boston Red Sox

Platform comparison

Market context

The Chicago White Sox–Boston Red Sox contract is pricing at **38% YES** on Polymarket, so the market is leaning to Boston while still leaving a meaningful chance of a Chicago upset. On Polymarket, that YES price settles via **USDC** on **Polygon**, with the outcome mapped to the game result through the exchange’s conditional-token structure rather than any subjective assessment of team quality.

Recent results point towards why Boston carries the edge. The Red Sox have taken the first two games of this set, including a **14-2** rout on 4 August and a **4-0** shutout on 5 August, and AP recaps also show Boston having won **six straight** and **24 of its last 27** at one point in that run.[6][3] Chicago has been on the wrong side of the matchup, and ESPN’s team page shows Boston’s run prevention profile looking stronger than Chicago’s over the same period, which helps explain why a sub-40% YES price on the White Sox side is not unusual after the recent head-to-head results.[1][6]

For traders, the main catalysts are straightforward: confirmed line-ups, starting pitchers, late injury scratches, weather, and any change to the scheduled first pitch, because postponement keeps the market open until the game is completed, while cancellation or a tie would resolve **50-50** under the contract terms. The game is listed for **6 August at 7:10 pm ET**, and current live-pricing screens from the wider market show Boston favoured on the moneyline, which is consistent with the on-chain price sitting well below parity.[10][16]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Chicago White Sox vs. Boston Red Sox 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

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

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 PolyGram. 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.

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 PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.