San Francisco Giants vs. Colorado Rockies

Platform comparison

Active sub-markets

Market context

The San Francisco Giants travel to Colorado on 31 May for a regular-season Major League Baseball fixture against the Rockies, with first pitch scheduled for 3:10 PM Eastern Time. The settlement window closes 7 June 2026 at 19:10 UTC, allowing a week for official final statistics to be recorded and verified. Resolution depends on the official MLB box score; postponement extends the market's open status until completion, whilst cancellation without rescheduling or a tied result triggers a 50–50 split.

The 99 per cent implied probability for a Giants victory reflects significant disparity in recent form and roster composition. Historical matchups between these franchises show the Giants have won approximately 55 per cent of regular-season contests over the past five seasons, though Colorado's home-field advantage at Coors Field—where altitude effects batting averages—has historically compressed that edge. Comparable markets for Giants–Rockies games earlier in the 2026 season have typically settled within a 60–75 per cent range for the visiting team, suggesting current pricing may incorporate additional information about injury status or pitching rotation.

Traders should monitor roster announcements through 30 May, particularly starting pitcher confirmation and any late-notice injuries to key position players. Weather conditions at Denver's elevation can shift run-scoring expectations materially; the National Weather Service forecast for game day will influence line movement in the final 48 hours. Recent news from MLB injury reports and spring-training performance metrics will clarify whether either team faces unexpected absences that could justify the extreme probability skew.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Legal UK, which mirrors the Polymarket order book directly.

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?

Polymarket Legal UK 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 Polymarket Legal UK?

Zero. Polymarket Legal UK 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.