Detroit Tigers vs. Houston Astros

Platform comparison

Active sub-markets

Market context

The Detroit Tigers face the Houston Astros on 15 June at 8:10 PM ET in a regular-season MLB matchup. Resolution hinges on official final statistics from MLB's governing records, with settlement occurring by 23 June. Postponement extends the market's open window; cancellation without a rescheduled game or any tied result triggers a 50-50 split resolution.

Historical precedent suggests markets on regular-season MLB games rarely sustain 100% implied probability unless one team has already clinched or the opposing roster faces catastrophic injury. The Tigers and Astros are both competitive franchises with functional rosters; such extreme pricing typically reflects either late-breaking roster news, a data feed error, or an unusually lopsided betting flow. Reviewing comparable June matchups from prior seasons shows that single-game markets between non-eliminated teams rarely exceed 85–90% probability unless a starting pitcher is ruled out hours before first pitch.

Traders monitoring this market programmatically should track roster announcements through MLB's official injury reports and team statements, particularly regarding starting pitchers confirmed for 15 June. Recent trades, weather forecasts affecting Houston's climate-controlled stadium, and any last-minute venue changes warrant conditional order adjustments. The settlement window's extension to 23 June provides buffer for rescheduled games, but automated systems should flag any cancellation announcements immediately, as they trigger the 50-50 resolution clause rather than a straightforward win-loss outcome.

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 Polymarket App 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.

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, Polymarket App UK triggers a quick verification flow that finishes in minutes.