Cleveland Guardians vs. Chicago White Sox

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians face the Chicago White Sox in a Monday evening MLB game at 7:40PM ET on June 22, with the Guardians entering as the slight favourite on DraftKings moneylines at -112 versus the White Sox at -108[1]. While major sportsbooks price the Guardians as a modest edge, the prediction market for this contract shows a 23% implied probability for the Guardians winning, a figure that diverges meaningfully from the near-even moneyline odds and the Rotoworld Bet model, which leans towards the White Sox on the moneyline[1]. This discrepancy mirrors historical cases where prediction markets underprice the home team’s run-differential advantage despite sportsbooks favouring the visitor; for instance, the White Sox’s 24-12 home split and positive recent form have kept them in contention, yet the market remains sceptical[2].

Traders should monitor the starting lineups announced roughly one hour before the game, as the Guardians’ 41-37 record and 3.79 ERA contrast with the White Sox’s 4.41 ERA and higher offensive output[5][7]. A key dependency is the health of White Sox catcher Kyle Teel, who recently returned from the 60-day injured list, potentially altering defensive dynamics[5]. Recent news from ESPN highlights Devers’ erratic play as a volatility factor, while the White Sox’s 4.64 runs per game suggest an over 7.5 total is likely, a bet Rotoworld also projects[1][5]. The settlement window closes on 2026-06-29, ensuring any postponed game resolves before expiry, but the immediate catalyst remains the confirmed pitching rotation and any late-injury updates.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Cleveland Guardians vs. Chicago White Sox across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Best Prediction Markets — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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, 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.

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.