Colorado Rockies vs. Athletics

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Active sub-markets

Market context

On 13 June, the Colorado Rockies will host the Oakland Athletics in an MLB regular-season game at Coors Field, Denver. A YES share represents a bet on the Rockies winning; a NO share bets on the Athletics. The current crowd-implied probability of 43% for a Rockies victory reflects moderate confidence in the home team, with the remaining probability distributed to an Athletics win or tie resolution.

Historical matchups between these franchises show the Rockies hold a slight edge in head-to-head records over recent seasons, though the Athletics have demonstrated competitive variance year-to-year. The 43% probability sits below the typical home-field advantage baseline (roughly 54% across MLB), suggesting the market is pricing in either stronger Athletics form or notable Rockies roster concerns at the time of assessment. Coors Field's elevation and hitter-friendly dimensions historically favour the home side, yet this discount indicates traders are weighting other factors—potentially pitching matchups or recent win-loss streaks—more heavily than venue advantage alone.

Traders should monitor starting pitcher assignments, which typically become confirmed 48 hours before game time and substantially shift win probabilities. Injury reports for key position players on either roster, particularly the Rockies' batting lineup, warrant close attention given Denver's reliance on offensive production. Weather conditions at Coors Field—particularly wind direction and temperature—can materially affect ball carry distance and scoring patterns. Any roster moves, trades, or roster-related announcements between now and 13 June could alter the probability trajectory, as could performance trends in the teams' immediately preceding games.

Methodology

We track Colorado Rockies vs. Athletics on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Prediction Market 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.

Is this market available outside the US?

Prediction Market UK 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'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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Prediction Market UK 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.