Arizona Diamondbacks vs. San Francisco Giants

Platform comparison

Active sub-markets

Market context

The Arizona Diamondbacks travel to San Francisco to face the Giants on 25 May at 21:05 UTC, with settlement occurring six days later on 1 June. The 93% crowd-implied probability reflects backing for Arizona, a team that finished 2023 with a 104–58 record and reached the World Series, whilst the Giants posted 80–82 in 2023 and have undergone roster transitions. Straight win-loss resolution applies; postponement extends the market until completion, whilst cancellation without rescheduling or a tied result triggers 50–50 settlement against official MLB statistics.

Historical matchups between these division rivals show competitive variance rather than dominance. Over the past three seasons, Arizona holds a marginal head-to-head advantage, though individual game outcomes depend heavily on starting pitcher matchups and ballpark conditions at Oracle Park. The current probability skew toward Arizona likely incorporates their stronger 2024 season trajectory and recent roster depth compared to San Francisco's rebuilding phase, though May baseball carries inherent volatility.

From a regulatory standpoint, this market operates under differing frameworks depending on trader jurisdiction. US traders face CFTC oversight of prediction markets; the German GlüStV (gambling licensing statute) applies to EU-based participants, with no-KYC access typically capped at €1,500 per market to limit exposure. UK traders should verify their platform's FCA classification. Injury announcements or weather delays in the days preceding the match represent key catalysts; monitor official MLB communications and team injury reports through 24 May for lineup changes affecting betting odds and market probability shifts.

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.

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.

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.