Chicago White Sox vs. Detroit Tigers

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Market context

The Chicago White Sox are playing the Detroit Tigers at Comerica Park, and the market’s **0% YES** price is far below the cross-platform pricing in sportsbooks and model-based previews. At the time of the pre-game listings, Detroit was around **-120** on the moneyline and Chicago around **+100 to -102**, while a separate market feed showed an implied Tigers win chance of roughly **57%** and a White Sox win chance of **43%**; those figures are broadly aligned with the bookmaker side rather than with a zero-probability contract price.[2][3][4] That makes the contract look mispriced relative to the rest of the board unless the market has already incorporated a late, team-specific development that is not yet reflected elsewhere.[6]

Comparable cases suggest that extreme prediction-market prices usually only make sense when there is a near-certain information edge, such as an official postponement, a confirmed lineup change, or a settled statistical issue. Here, the comparable pre-match consensus was much narrower: Action Network listed Chicago at **+100** and Detroit at **-120**, while SportsGrid’s model gave the White Sox a **57%** win chance and projected a one-run game.[1][3] Recent preview material also pointed to probable starters **Davis Martin** for Chicago and **Keider Montero** for Detroit, which matters because any change to that pitching matchup can move moneyline and run-line prices quickly.[3]

For traders, the main catalysts are the official line-ups, any pitcher scratches, and weather or rain-delay risk at the scheduled 1:40pm ET first pitch; if the game is postponed, the contract stays open until completion, while a cancellation or tie would settle 50-50.[8] The other thing to watch is whether the sportsbook number moves away from Detroit’s modest favourite status, because a shift from roughly pick’em to a stronger Tigers edge would still be far short of a 0% YES reading.[1][2][4]

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

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

Where can I trade this market with the lowest fees?

On Best Prediction Markets 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 does it cost to trade on Best Prediction Markets UK?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Best Prediction Markets 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.