Chicago White Sox vs. San Francisco Giants

Platform comparison

Active sub-markets

Market context

The Chicago White Sox will face the San Francisco Giants on 22 May at 10:15 PM ET in a regular-season Major League Baseball fixture. The market's 99% implied probability for a White Sox victory reflects significant pre-game consensus, though baseball's inherent variance means such probabilities warrant scrutiny against actual roster strength and recent form. The settlement window extends to 30 May 2026, providing a buffer for postponements; cancellations without rescheduling or tied outcomes trigger a 50-50 split resolution.

Historical precedent in MLB prediction markets shows that probabilities above 95% often compress when underlying team metrics—injury reports, bullpen availability, or recent win-loss streaks—shift materially in the days before fixture. The White Sox's 2024 season performance and current roster composition relative to the Giants' pitching depth will determine whether the crowd's confidence holds. Markets at this probability level typically reflect either a substantial talent gap or significant injury disadvantage for the underdog, rather than pure statistical edge.

Traders should monitor official roster announcements through 22 May, particularly starting pitcher confirmation and any late-breaking injuries affecting either team's position players or relief arms. The Giants' recent form and the White Sox's home-field advantage at the scheduled venue constitute the primary catalysts. Under German GlüStV regulations, this market's accessibility depends on operator licensing; under US CFTC reach, binary sports contracts face scrutiny unless properly exempted. Most UK-regulated platforms offer no-KYC access up to £1,200 (approximately $1,500 USD equivalent), meaning traders below that threshold avoid identity verification, though settlement remains subject to applicable jurisdiction and operator compliance frameworks.

Methodology

We track Chicago White Sox vs. San Francisco Giants on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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

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 PolyGram?

Zero. PolyGram 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram 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.