Houston Astros vs. Detroit Tigers

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Market context

On Saturday, 27 June 2026, the Houston Astros face the Detroit Tigers at Comerica Park in Detroit for a 1:10pm ET MLB game. In prediction markets, a YES share pays out if the Astros win, while a NO share pays out if they do not; the current crowd-implied probability of 51% suggests a near-even contest, slightly favouring the Astros despite both teams sitting fourth in their divisions with modest records (Astros 40–44, Tigers 35–47)[1][6].

Historically, games between two fourth-place teams with similar run differentials often resolve within a one-run margin, making the 51% probability plausible but fragile; comparable matchups in the 2024 and 2025 seasons saw the home team win 54% of such contests, aligning closely with today’s implied odds[1][3]. Traders should monitor the final starting pitcher announcements before 12:00pm ET, as a late change to a weaker reliever could shift the probability significantly, and watch for weather updates at Comerica Park, since rain delays could postpone the game and keep the market open until completion[1][9]. Recent analysis from Jason Sharpe of Doc Sports highlights Detroit as the free-play selection, noting the Tigers’ stronger home record (23–19) compared to the Astros’ away form (20–23)[4][6].

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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Prediction Market UK, 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?

Prediction Market 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.

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, Prediction Market UK triggers a quick verification flow that finishes in minutes.