Pittsburgh Pirates vs. Colorado Rockies

Platform comparison

Active sub-markets

Market context

The Pittsburgh Pirates are at Coors Field to face the Colorado Rockies in a game that sportsbooks have priced as a Pirates lean, but not an overwhelming one. ESPN’s listed moneyline of Pirates \(-144\) implies about a 59% win chance, while FanDuel’s price of around \(-137\) is a touch softer, and Covers shows a similar market with Pittsburgh around the mid-\(-130s\). That sits well above the prediction market’s **48% YES** level, suggesting the contract is trading materially below the typical sportsbook view of a Pirates win.

That gap is easier to read against the teams’ broader records and the setting. ESPN lists Pittsburgh at 38-37 and Colorado at 28-47, yet the game is in Denver, where Coors Field tends to inflate scoring and variance; the market total is set at 11.5 across several books, which is high even by MLB standards[1][4][5]. In comparable matchups at altitude, moneyline favourites can still be modestly priced because run environment and bullpen volatility increase the chance of a narrow, late swing. Action Network’s public betting snapshot also shows a heavy share of bets on the Rockies side despite the Pirates being the statistical favourite, which is a useful reminder that ticket flow and win probability are not always aligned[3].

For traders, the main catalysts are lineup confirmation, starting pitcher status, and any late weather or schedule change, since the settlement window runs through the game’s completion and postponement would keep the contract open. The market is still live into the scheduled late-evening slot, so late scratches or a pitching change could move both the sportsbook line and the contract quickly; ESPN currently lists the game as open, with no completed result yet[4]. If the game were to be postponed or cancelled, the contract’s resolution rules would matter more than the on-field price, because a no-contest or tie would settle 50-50 under the stated terms.

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 Best Prediction Markets UK, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On Best Prediction Markets 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.

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 Best Prediction Markets UK?

Zero. Best Prediction Markets UK 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.