Detroit Tigers vs. Chicago White Sox

Platform comparison

Active sub-markets

Market context

The Detroit Tigers travel to Chicago for a day game against the White Sox on 31 May at 2:10 PM ET, with settlement occurring on 7 June. Polymarket currently prices this contract at 0% YES, reflecting either a technical issue with the market interface or an extreme consensus favouring the White Sox. On-chain, this conditional token pair settles in USDC on Polygon once MLB's official box score confirms the result, with the 50-50 tie-resolution clause applying only if the game is cancelled without a make-up fixture.

The Tigers and White Sox occupy opposite ends of the AL Central standings, which contextualises the current pricing. Detroit has been competitive through May 2025, whilst Chicago has struggled significantly, creating a baseline expectation favouring the Tigers. However, a 0% probability on Polymarket is rarely sustainable for single-game MLB contracts; even heavily favoured teams carry residual uncertainty around weather delays, bullpen availability, and in-game variance. Historical precedent suggests such extreme probabilities often reflect liquidity constraints or stale pricing rather than genuine market conviction.

Traders should monitor starting pitcher announcements and any weather alerts for Chicago on game day, as afternoon games are susceptible to thunderstorm postponements in the Midwest. Recent injury reports from both rosters and any last-minute roster moves will affect conditional token valuations. The settlement window extends to 7 June to accommodate potential postponements, creating a window where market prices may shift if the game is rescheduled rather than played as scheduled.

Methodology

We track Detroit Tigers vs. Chicago White Sox on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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?

On Kalshi UK, which mirrors the Polymarket order book at 0% fees. 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Kalshi 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.