Pittsburgh Pirates vs. St. Louis Cardinals

Platform comparison

Active sub-markets

Market context

Polymarket has this Cardinals-Pirates contract trading at 27% YES, so the market is leaning towards St. Louis but is still allowing a meaningful chance of a Pittsburgh win. On Polymarket, that price reflects a USDC position on Polygon, settled through conditional tokens once the official result is confirmed. With the game set for this afternoon in St Louis, the contract is close enough to first pitch that line movement will usually track any confirmed lineup changes, pitching adjustment or weather-related delay more than broader team reputation.

Recent form gives the price some context. The Pirates just beat the Cardinals 7-0 on 20 May, with Konnor Griffin, Nick Gonzales and Endy Rodríguez all producing at the plate, which is a reminder that the underdog can win this matchup outright. At the same time, St Louis has already shown the stronger ceiling in the rivalry this season, having swept Pittsburgh in late April with a 10-5 win in which the Cardinals got to Paul Skenes early. In head-to-head terms, that split matters: the teams have already traded emphatic results this year, so a low-20s implied price on Pittsburgh is not unusual for a road side that has recently been shut out but has also shown enough offence to avoid being priced out completely.

For traders, the main catalysts are the confirmed starters, any late injury or rest news, and whether the scheduled 1:15 pm ET start holds without a postponement. If the game is delayed but completed, the contract stays live; if it is cancelled outright or ends in a tie, it resolves 50-50. The official scoreboard and final statistics will control settlement, so pre-game chatter matters less than the actual line-up card and whether either club makes a late pitching change.

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Methodology

This page reviews Pittsburgh Pirates vs. St. Louis Cardinals across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

PolyGram 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.