Chicago White Sox vs. San Francisco Giants

Platform comparison

Active sub-markets

Market context

The White Sox travel to San Francisco on 22 May for an evening fixture against the Giants, with first pitch at 10:15 PM ET. Polymarket currently prices this contract at 100% YES, indicating the market has collapsed entirely toward a White Sox victory outcome. This extreme pricing reflects either exceptionally lopsided betting activity or a technical artefact; such flat probabilities are uncommon in sports markets where underlying uncertainty typically persists until game time. The settlement window extends to 30 May 02:15 UTC, allowing for postponements common in late May scheduling.

Historical context matters here. The White Sox finished 2024 with a 41-121 record, the worst in baseball, whilst the Giants posted 80-82. Head-to-head records between these franchises show competitive balance over recent seasons, yet Polymarket's current pricing ignores this entirely. When a sports contract reaches 100% on a conditional token market, traders should examine whether this reflects genuine information asymmetry—such as confirmed injuries or roster changes—or simply thin liquidity on Polygon. The USDC settlement mechanism means any position holder betting against the White Sox at current odds faces unlimited downside if the Giants win.

Watch for roster announcements in the week before 22 May, particularly regarding starting pitchers and key position players. Recent San Francisco injury reports and Chicago's ongoing rebuild trajectory could shift expectations, though Polymarket's current pricing leaves no room for such adjustments. Any material news would likely trigger immediate repricing if liquidity emerges.

Methodology

This page reviews Chicago White Sox vs. San Francisco Giants 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 PolyGram — 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

Is this market available outside the US?

PolyGram 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.

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.