Pronóstico: Houston Astros vs. Detroit Tigers

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Market context

The Houston Astros, currently 40-44 and fourth in the AL West, face the Detroit Tigers, 35-47 and fourth in the AL Central, at Comerica Park in Detroit on Saturday, 27 June 2026, with first pitch at 1:10 p.m. ET. The market implies a near-even contest at 49% YES for the Astros, a probability that mirrors historical matchups between two teams struggling for form in the same divisional tier, where home advantage and recent pitching duels have often swung the line by just a few percentage points.

Key catalysts for traders include the confirmed starting pitchers: Tigers’ left-hander Framber Valdez (4-5, 3.91 ERA) versus the Astros’ TBD starter, as the Astros’ rotation remains unsettled following injuries to Lance McCullers Jr. and Tatsuya Imai [2]. The Astros’ offensive slump is notable, with Yordan Alvarez batting just .206 over the last ten games, while Jeremy Pena leads the team with three home runs and a .371 average in that span [1]. Crucially, Carlos Correa remains on the 60-day injury list with an ankle tendon issue, depriving the Astros of a key bat [1]. Traders should monitor the final Astros lineup announcement before 1:00 p.m. ET, as any change in the starting pitcher could shift the probability significantly, given Valdez’s strong home record and the Tigers’ 23-19 home standing [4]. Recent betting analysis from Doc Sports favours Detroit to win this game outright [6], suggesting the market may be underpricing the Tigers’ home edge.

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

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

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.

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.

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.