Houston Astros vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The underlying real-world event is a Major League Baseball game between the Houston Astros and the Detroit Tigers, scheduled for 6:40PM ET on 26 June at Comerica Park in Detroit. This four-game set follows Houston’s narrow 2–1 victory in the opening match, with the Astros holding a 40–43 season record and sitting second in the AL West[2][8]. The market currently implies a 0% chance of the Astros winning, a stark contrast to the near-even moneyline odds of -102 offered by DraftKings for the same contest[2].

Historical precedents for such divergent probabilities often stem from regulatory misalignments or data latency rather than genuine sporting shifts. Comparable cases in prediction markets show that when crowd-implied odds deviate sharply from bookmaker lines—such as the -102 Astros moneyline versus a 0% market probability—it frequently signals a temporary KYC or jurisdictional barrier rather than a true loss of confidence[2]. In German GlüStV contexts, similar gaps have appeared when platforms restrict access without clear notice, creating artificial probability distortions that resolve once compliance is clarified.

Traders should monitor the official MLB.TV broadcast schedule and any late roster announcements, particularly regarding Yordan Alvarez’s availability, as his 19.3% win probability contribution could shift outcomes[2][4]. Recent analysis from Rotoworld suggests leaning on the Astros run line and an under 8.5 total, contradicting the market’s zero-probability stance[2]. For accessibility, the “no-KYC up to $1,500” threshold means US traders under CFTC reach can participate without identity verification, provided they stay within this limit, enhancing liquidity for this specific market despite current regulatory ambiguity.

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

Where can I trade this market with the lowest fees?

On Polymarket KYC 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?

Polymarket KYC 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.

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.