Colorado Rockies vs. Arizona Diamondbacks

Platform comparison

Active sub-markets

Market context

The Colorado Rockies travel to Arizona on 24 May 2025 for a regular-season matchup against the Diamondbacks, with first pitch scheduled for 4:10 PM Eastern Time. Resolution hinges on the official final score as recorded by MLB; postponements extend the settlement window until completion, whilst cancellations or ties trigger a 50-50 split.

From a regulatory standpoint, this market's accessibility varies by jurisdiction. Under German GlüStV (Glücksspielstaatsvertrag), sports prediction markets require specific licensing; traders in Germany should verify their platform's authorisation before participation. In the United States, the CFTC's reach over prediction markets remains contested, though binary sports outcomes have generally fallen outside direct derivatives regulation when structured as peer-to-peer wagering rather than leveraged instruments. For UK-based traders, the Gambling Commission's framework applies standard KYC thresholds: markets permitting participation without full identity verification up to £1,500 (approximately $1,900) in cumulative exposure represent a lower-friction entry point, though operators must still collect basic information at deposit or withdrawal.

The current 0% crowd probability suggests either technical market conditions or genuine consensus regarding outcome likelihood. Traders should monitor pre-game developments: roster changes, injury reports (particularly among starting pitchers), weather conditions affecting play in Arizona's May heat, and recent head-to-head records. The Diamondbacks' 2024 postseason run and the Rockies' rebuilding trajectory provide historical context for relative strength assessments. Settlement closes 31 May 2026, allowing ample time for any postponed fixtures to be rescheduled within MLB's standard make-up protocols.

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 PolyGram, which mirrors the Polymarket order book directly.

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

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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.