Colorado Rockies vs. Athletics

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Active sub-markets

Market context

The Colorado Rockies face the Oakland Athletics on 13 June at 10:05 PM ET in a regular-season MLB matchup. The current crowd-implied probability of 43% for a Rockies victory reflects moderate confidence in the visiting team, though the settlement window extends to 21 June, allowing for postponement contingencies. USDC settlement will execute against official MLB final statistics once the game concludes.

Historically, the Rockies' home-field advantage at Coors Field has been material in similar matchups, though the Athletics' recent roster composition and pitching depth merit scrutiny. The 43% probability sits between typical underdog and coin-flip territory, suggesting market participants view the teams as relatively balanced but with slight lean toward Oakland. Comparable June fixtures between these franchises over the past three seasons have resolved with roughly 45–55% splits, indicating the current odds align with baseline expectations rather than reflecting sharp information.

Traders should monitor roster updates through 12 June, particularly injury reports affecting starting pitchers and key position players. Weather conditions at Coors Field—elevation and temperature fluctuations—can meaningfully influence run totals and game dynamics. Recent Athletics performance metrics and any last-minute lineup adjustments warrant attention, as do any schedule disruptions that could trigger the postponement clause. The extended settlement window provides buffer for weather-related delays common in early-to-mid June baseball, reducing tail risk of forced 50-50 resolution.

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — are listed with their platform attributes, because they operate off-chain and a 1:1 comparison of contract mechanics isn't possible.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Where can I trade this market with the lowest fees?

On BTC Prediction, 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 does it cost to trade on BTC Prediction?

Zero. BTC Prediction 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, BTC Prediction 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.