Cleveland Guardians vs. Chicago White Sox

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Active sub-markets

Market context

The upcoming MLB divisional clash on 22 June pits the Cleveland Guardians against the Chicago White Sox at 7:40PM ET, with the market currently pricing a Guardians win at 49% implied probability. This near-even split reflects a contest where both sides hold identical run-line records of 43 wins this season, suggesting a game of minimal variance rather than a clear favourite.

Historical precedents for divisional matchups between teams with matching run-line success often resolve with odds hovering between 48% and 52%, mirroring the current prediction-market implied probability. Sportsbooks diverge slightly, with DraftKings listing the Guardians as -112 favourites while Covers.com prices them at -115, yet analyst models like Rotoworld Bet lean toward the White Sox on the moneyline, creating a meaningful divergence between the 49% market price and the model’s implied 51% White Sox favour.

Traders should monitor the starting lineups announced two hours before the game, as pitching rotations in late June often shift due to fatigue or minor injuries. Recent coverage from NBC Sports highlights the Guardians’ -1.5 spread at +148 versus the White Sox’s +1.5 at -180, indicating bookmakers expect a narrow margin; any delay in the official roster confirmation could trigger volatility as the market recalibrates against the over/under total of 7.5 runs.

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

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 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.

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 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.

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.

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.