Houston Astros vs. Detroit Tigers

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Active sub-markets

Market context

On Saturday, 27 June 2026, the Houston Astros travel to Comerica Park in Detroit to face the Detroit Tigers in a 1:10 PM ET MLB game, with the crowd currently pricing a 49% chance of an Astros win. This near-even probability mirrors historical patterns where mid-season matchups between teams with similar run averages—both averaging 4.43 runs per game—often resolve with minimal variance, as seen in comparable 2024 and 2025 contests where home-field advantage barely shifted the odds beyond the 50% threshold[2][3]. Traders should note that when both squads sit fourth in their respective divisions, the market tends to reflect a stalemate unless a specific catalyst disrupts the equilibrium.

Key catalysts include the pre-game lineup confirmation, particularly the absence of a key player due to injury, which recently saw "Joy felt with some back, tightness was scratched from the lineup" just hours before the start[5]. Traders must monitor real-time updates on pitching rotations and weather dependencies at Comerica Park, as sudden changes can swing the probability significantly. Recent previews indicate the Tigers hold a slight home-field edge with a -134 moneyline, suggesting the market may already be adjusting for the Astros' away-record struggles[3].

From a regulatory perspective, this market operates under the German GlüStV framework for sports betting and the US CFTC’s reach over prediction markets, where "no-KYC up to $1,500" allows immediate accessibility for smaller traders without identity verification. This threshold ensures that casual participants can engage with the 49% YES probability without bureaucratic friction, provided they remain within the stipulated limit. The settlement window closing on 4 July 2026 at 17:10 UTC provides a clear resolution timeline, ensuring all outcomes are finalised promptly after the game concludes, regardless of postponements or cancellations[8].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Houston Astros vs. Detroit Tigers on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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.

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.