Colorado Rockies vs. Philadelphia Phillies

Platform comparison

Market context

The Colorado Rockies face the Philadelphia Phillies in an MLB regular-season matchup scheduled for 10 May at 1:35PM ET, with settlement occurring by 17 May. The Phillies enter as the favoured side based on recent performance metrics and roster composition. Philadelphia finished the 2024 season with a stronger win-loss record and has maintained competitive standing in the National League East, whilst Colorado has historically underperformed at altitude-adjusted expectations and faces consistent roster turnover challenges.

The 0% implied probability for a Rockies victory suggests market participants are pricing in a decisive Phillies advantage. Historical context shows that single-game MLB markets rarely reflect true zero-probability outcomes; even heavily favoured teams lose approximately 30–35% of games against weaker opponents across a full season. The Rockies' home-field advantage at Coors Field, where elevation effects create measurably higher run-scoring environments, provides a structural counterweight to Philadelphia's roster depth.

Traders should monitor starting pitcher assignments and recent injury reports in the days preceding the match. Bullpen availability, particularly for the Phillies' relief corps, has been a variable affecting game outcomes throughout the 2025 season. Weather conditions at Coors Field—specifically wind direction and temperature—materially influence offensive output and should be assessed closer to game time. Any last-minute roster changes or unexpected roster moves by either franchise could shift underlying match probabilities, though such announcements typically occur within 24 hours of first pitch.

Methodology

This page tracks Colorado Rockies vs. Philadelphia Phillies across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. PolyGram routes every trade through to Polymarket — at 0% fees.

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.

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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.

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 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.