San Francisco Giants vs. Colorado Rockies

Platform comparison

Active sub-markets

Market context

The San Francisco Giants face the Colorado Rockies on 31 May at 3:10 PM ET in a regular-season Major League Baseball fixture. The crowd-implied probability of 98% for a Giants victory reflects significant market confidence, though such extreme probabilities in single-game sports markets warrant scrutiny against historical volatility. Baseball's inherent variance—where a single relief pitcher's availability or weather delay can shift outcomes materially—means even heavily favoured teams lose roughly 2–5% of matchups where implied odds exceed 95%. The Giants' recent form, rotation health, and Coors Field's altitude effects on ball flight remain material variables that could compress or extend the current probability gap.

Traders should monitor roster announcements through 31 May, particularly injury reports affecting starting pitchers or key relievers for either side. The Giants' bullpen depth and Colorado's home-field advantage at Coors—where run-scoring typically elevates—represent live catalysts. Weather forecasts for Denver may also shift expectations if rain or wind patterns emerge closer to game time. Under German GlüStV and US CFTC frameworks, this market's accessibility depends on the host platform's regulatory posture; no-KYC thresholds up to $1,500 USD typically apply to individual sports-outcome contracts on compliant venues, though cross-border traders should verify their jurisdiction's treatment of prediction market positions before settlement.

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 KYC 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

Where can I trade this market with the lowest fees?

On Polymarket KYC UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket KYC UK?

Zero. Polymarket KYC UK 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, Polymarket KYC UK triggers a quick verification flow that finishes in minutes.