Pittsburgh Pirates vs. St. Louis Cardinals

Platform comparison

Active sub-markets

Market context

The Cardinals and Pirates are scheduled to meet in St Louis, with the market resolving on the official result once the game is completed. The current 0% YES price is best read as a dead market rather than a sporting judgement: at that point, the platform is effectively saying the Pirates have no priced path to victory. That is notably different from bookmaker-style pricing on Betfair or Smarkets, which would usually show an exchange decimal price and then an implied probability once commission is accounted for; Kalshi and Polymarket instead display direct event pricing, though access, fees and KYC requirements differ by venue.

Recent form in this fixture leans St Louis. ESPN recorded the Cardinals beating Pittsburgh 10-5 on 30 April, part of a four-game sweep in Pittsburgh, and StatMuse says St Louis have gone 5-0 in their last five games against the Pirates while batting .264 in that span. That sort of head-to-head run matters in comparison-shopping because it often pulls exchange prices away from a simple season-record view, especially when one side has recently handled the other’s rotation and bullpen match-ups.

For traders, the main catalysts are line-up confirmations, starting pitchers and any late weather or postponement risk around the 7:45pm ET first pitch. The market stays open if the game is delayed or made up, so any scheduling change can matter as much as the teams’ form. Official scores and status from MLB are the final reference, with live listings on ESPN, Flashscore and Sofascore helping to spot whether the game has started, been suspended or finished.

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Methodology

We read Pittsburgh Pirates vs. St. Louis Cardinals from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram 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.