Pittsburgh Pirates vs. Houston Astros

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Active sub-markets

Market context

The Pittsburgh Pirates travel to Houston on 3 June for an evening matchup against the Astros, with first pitch at 8:10 PM ET. The settlement window closes 11 June at 00:10 UTC, allowing for weather postponements or scheduling adjustments common in early summer baseball. Current market pricing reflects zero probability for a Pirates victory, suggesting the book has consolidated heavily toward Houston despite the Pirates' recent competitive form in divisional play.

Historical matchups between these franchises show the Astros maintain a structural advantage: they've won 58 of their last 100 meetings and possess superior run differential across the past three seasons. However, the Pirates' 2024 roster improvements—particularly their pitching depth—have narrowed the gap in head-to-head contests. The current 0% probability for Pittsburgh appears extreme relative to their actual win rate against Houston (roughly 35–40% in recent years), suggesting either sharp money has moved decisively toward the Astros or liquidity remains shallow on the Pirates side.

Traders should monitor roster updates through game day, particularly injury reports on starting pitchers for both sides, as these typically drive repricing in baseball markets. Houston's recent form and home-field advantage at Minute Maid Park are documented factors, but the absence of any meaningful backing for Pittsburgh suggests the market may be pricing in information not yet public. Deposit and withdrawal flows on the platform—whether traders are adding capital to back Pittsburgh value or withdrawing after the line moved—will indicate whether this extreme pricing reflects genuine consensus or temporary book imbalance.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

Polymarket Klarna UK 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.