Chicago White Sox vs. Detroit Tigers

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Active sub-markets

Market context

The game is simply a head-to-head on 21 June: if Chicago wins, the market resolves **YES**; if Detroit wins, it resolves **NO**. In prediction-market terms, a YES share pays out if the named outcome happens, while a NO share pays if it does not. If the match is postponed, the market stays open until it is completed; if it is cancelled outright, or ends in a tie, it resolves 50-50 under the rules given.

The current crowd-implied probability of 5% for Chicago is much lower than the broader betting view around the same fixture. Recent market snapshots show Detroit priced as a modest favourite, but not overwhelmingly so, with moneyline odds around Tigers -120 and White Sox around +100 to +102, and model-based win estimates closer to the high-40s or low-50s for Chicago rather than anywhere near 5%.[1][2][3][5] Chicago also entered with a better record than Detroit in the listed previews, which makes such a low crowd price look more like a strong bias towards Detroit’s home-field edge and the White Sox’s away form than a reading of a near-certain result.[1][2]

For traders, the main catalysts are the confirmed starting pitchers, late lineup changes, and any pre-game weather or schedule update, because these can move both baseball odds and prediction-market sentiment quickly. Pre-game previews listed Davis Martin versus Keider Montero as the probable pitching matchup, and Detroit was also described as trying to extend a home winning streak.[3][2] Because the market only resolves on the official final result, the key dependency is whether the game is completed as scheduled, postponed, or altered by an unusual finish such as a tie or cancellation.[2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Chicago White Sox vs. Detroit Tigers 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

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Is this market available outside the US?

Prediction Market UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 it cost to trade on Prediction Market UK?

Zero. Prediction Market UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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, Prediction Market UK triggers a quick verification flow that finishes in minutes.