Pittsburgh Pirates vs. San Francisco Giants

Platform comparison

Market context

The Pittsburgh Pirates travel to San Francisco on 10 May for a regular-season MLB matchup against the Giants. First pitch is scheduled for 4:05 PM ET, with settlement occurring after the game concludes or by 17 May 2026 if postponed. The current 0% implied probability for a Pirates victory reflects either strong market consensus favouring the Giants or minimal trading activity in this particular market.

Historical context for early-season matchups between these franchises shows considerable variance depending on roster composition and injury status. The Pirates have finished below .500 in recent seasons, whilst the Giants remain competitive in the NL West. For programmatic traders, this market presents a straightforward binary outcome with standard MLB resolution rules—postponement extends the settlement window, whilst cancellation without a make-up game triggers a 50-50 split. Conditional order logic should account for weather delays common to May scheduling.

Key catalysts before game time include roster announcements, starting pitcher confirmation, and injury updates from both organisations. Recent team performance trends, bullpen availability, and home-field advantage at Oracle Park warrant monitoring through official MLB channels and team press releases. Traders building automated systems should integrate real-time lineup data and weather forecasts for San Francisco, as these directly influence game-day conditions and betting dynamics in the hours preceding first pitch.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Resolution source: This market settles from the official publication at https://www.mlb.com/. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

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 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.