Pittsburgh Pirates vs. Colorado Rockies

Platform comparison

Active sub-markets

Market context

The Pittsburgh Pirates are the **favourite** for the June 21 meeting with the Colorado Rockies, and the market’s 100% YES price implies a near-certainty of a Pirates win rather than a fair contest. That is far more aggressive than the bookmaker-style pricing in the available market snapshots, where Pittsburgh is around 1.65 and Colorado 2.12, implying a Pirates edge but not an outcome anything like a lock.[2]

For handicapper context, that matters because MLB moneyline favourites usually sit well below 100% even when they are clearly preferred, and the consensus in the wider betting market still appears to be “Pirates most likely, Rockies live underdog”. ESPN lists the game as a standard scheduled matchup and notes the Rockies are trying to sweep the series, which is the sort of spot where late-game variance, bullpen usage and line-up rest can matter more than the headline price suggests.[4] Covers’ preview also has Pittsburgh ahead on its score model, but only by a modest margin, with a projected 7.47-5.79 finish rather than a blowout profile.[3]

For traders, the main catalysts are the confirmed starting pitchers, any late line-up rotation, and whether the game proceeds as scheduled at 3:10pm EDT; postponement would keep the market open until completion, while a cancellation or tie would trigger a 50-50 settlement under the rules. A pre-game view that has Pittsburgh as the right side can still leave some value on Colorado if the market stays pinned at 100% YES, because the consensus odds and model projections both suggest the Pirates are favoured, not guaranteed.[2][3][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.

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

Is this market available outside the US?

Who Will Win 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.

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.

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.