Colorado Rockies vs. Philadelphia Phillies

Platform comparison

Market context

The Colorado Rockies travel to Philadelphia to face the Phillies on 10 May at 1:35PM ET in a regular-season MLB matchup. The market currently shows 0% implied probability for a Rockies victory, reflecting strong market consensus favouring the Phillies. Settlement occurs on 17 May, allowing a week for game completion should postponement occur. Traders implementing conditional logic should note the 50-50 tie-resolution clause, which applies only if the game is cancelled without a make-up fixture—a rare occurrence in MLB scheduling.

Historical context matters here: the Phillies have consistently outperformed the Rockies in head-to-head records and playoff appearances over the past decade. The Phillies' 2023 National League East title and sustained competitive roster contrast sharply with Colorado's rebuilding phase. When markets price a matchup at 0% for the underdog, they typically reflect not just current form but structural roster gaps. For programmatic traders, this represents an extreme probability edge case; automated systems should flag whether such pricing reflects genuine information asymmetry or market inefficiency.

Key variables to monitor include starting pitcher announcements (typically finalised 24–48 hours pre-game), weather conditions at Citizens Bank Park, and any late roster moves. Colorado's recent performance trends and injury updates should feed into conditional order logic. The Rockies' altitude advantage at home is absent here, removing one traditional variable. Traders using APIs to track line movement should watch for sharp action shifts, which might signal information the crowd-implied probability hasn't yet absorbed.

Methodology

This page is a comparison snapshot: one live quote, 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

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

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.

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.