Colorado Rockies vs. Chicago Cubs

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Active sub-markets

Market context

The Rockies travel to Chicago for a midweek matchup against the Cubs on 16 June, with the market pricing Colorado as a 25% chance to win. Recent movement has favoured the Cubs, likely reflecting their stronger record and home-field advantage at Wrigley Field, where they've performed consistently above .500 this season. The Cubs' pitching depth has improved markedly since May, whilst Colorado's rotation has been hampered by injuries to key starters.

Historically, the Cubs win roughly 55% of their home games against NL West opponents, and the Rockies' altitude advantage becomes irrelevant on the road. The 25% probability aligns with Colorado's typical performance as a visiting underdog against playoff-contending teams; they've won just 38% of away games against teams with winning records this season. The Cubs' home splits are notably stronger than their road performance, a pattern that has held across the past three seasons.

Traders should monitor the starting pitcher confirmation, expected by 15 June. If the Cubs deploy their ace, the probability could compress further towards 20%. Conversely, any late-notice injury to Chicago's rotation would shift the market meaningfully. Weather conditions at Wrigley—particularly wind direction—have historically favoured hitters in June, which could benefit either side depending on which team's offence has momentum heading into the fixture.

Methodology

We track Colorado Rockies vs. Chicago Cubs 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

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'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 Prediction Today?

Zero. Prediction Today 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.