Houston Astros vs. Detroit Tigers

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Market context

The upcoming MLB fixture at Comerica Park on 26 June pits the Houston Astros against the Detroit Tigers, with first pitch scheduled for 6:40 p.m. ET. The crowd-implied probability of 0% for an Astros victory is starkly misaligned with reality, as the game has already concluded with the Astros winning 2-1 on 25 June, a result that should have settled this market instantly. Historical precedents in prediction markets show that such extreme probabilities often stem from delayed data ingestion or technical glitches where the settlement engine fails to recognise a completed event, leaving traders exposed to a false line that ignores the actual outcome.

Key catalysts for any trader reviewing this market include the immediate verification of the official final score and the status of the settlement window, which erroneously remains open until July 2026 despite the game finishing. Recent injury reports confirm the Astros are missing key infielders like Nick Allen and LaMonte Wade Jr., yet their recent form remains robust with three wins in their last five outings, including a decisive victory over the Tigers[1][2]. The primary dependency is the governing body’s recognition of the 2-1 result, which should force a 100% resolution for the Astros, rendering the current 0% probability a clear arbitrage opportunity driven by a data lag rather than genuine sporting uncertainty[2][3]. Traders must monitor the official MLB final statistics page for the confirmation that will trigger the market’s closure, as the Tigers’ three-game losing skid and the Astros’ 12 home runs in their last ten games further validate the Astros’ dominance in this matchup[1].

Sources: 1 · 2 · 3 · 4 · 5

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

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

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 does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.