Cleveland Guardians vs. Chicago White Sox

Platform comparison

Market context

Polymarket has this contract at **55% YES** today, so the market is slightly leaning towards a Cleveland Guardians win rather than a Chicago White Sox win. Because settlement is via USDC on Polygon and the event resolves through conditional tokens, the practical question for users is simply which side the final MLB result maps to once the official score is posted.

The price sits in the middle of a series that has already swung both ways. Cleveland won 8-2 on Friday with Angel Martínez driving in six runs, but Chicago answered on Saturday with a 6-3 win to steady its position atop the AL Central.[1][2] That split matters because recent head-to-heads have been competitive: Cleveland beat Chicago 4-3 in 10 innings on 24 June, then the White Sox returned the favour 3-1 the next day, before another close Guardians win earlier in the 2025 season.[6][10][11] For a trader, a 55% line suggests the crowd is pricing Cleveland as a modest favourite, not a strong one, and recent one-run and extra-inning outcomes support that kind of narrow edge.[6][10][11]

The main catalysts are straightforward: line-ups, starting pitchers, and any late schedule change. The market stays open if the game is postponed and only settles after the game is completed, while a cancellation or tie resolves 50-50 under the contract rules. ESPN and CBS Sports both list the clubs’ latest results and standing context, with Chicago entering the series as the stronger home side and Cleveland coming off a road win, so any confirmed pitching announcement or scratch near first pitch can move the implied probability quickly.[1][2][12]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Cleveland Guardians vs. Chicago White Sox across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.