Arizona Diamondbacks vs. San Francisco Giants

Platform comparison

Active sub-markets

Market context

The Arizona Diamondbacks face the San Francisco Giants on 25 May at 5:05 PM ET in a National League West matchup. Polymarket currently prices this contract at 93% for a Diamondbacks victory, implying roughly 7% probability for a Giants win. The settlement window extends to 1 June 2026, allowing for postponements or scheduling adjustments. Resolution hinges on official MLB final statistics; any cancellation without a make-up game or tie result triggers a 50-50 split of the conditional tokens on Polygon.

Historically, the Diamondbacks have held a competitive edge in this rivalry during recent seasons, though the Giants remain capable of producing upset performances in divisional play. The 93% probability reflects not merely Arizona's roster strength but also contextual factors such as recent form, injury status, and home-field advantage where applicable. Comparable matchups between these clubs show that whilst Arizona has dominated certain stretches, single-game variance remains substantial—Giants victories at this probability level occur roughly once in fourteen contests.

Traders monitoring this contract should track roster announcements, particularly regarding starting pitchers and key position players, through official MLB channels and team statements. Weather conditions at the venue on game day can materially affect play, especially for a 5:05 PM ET start. Any late-breaking injuries to either team's lineup could shift the conditional token distribution, though the current 93-7 split suggests the market has already priced in known information. The settlement window's extension to 1 June accommodates potential rain delays or rescheduling, reducing cancellation risk.

Methodology

We track Arizona Diamondbacks 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'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 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.

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.