Seattle Mariners vs. Detroit Tigers

Platform comparison

Active sub-markets

Market context

The Seattle Mariners travel to Detroit on 7 June for a regular-season matchup against the Tigers, with first pitch at 1:40 PM ET. The settlement window extends to 14 June, accommodating potential postponements common in early summer baseball when weather disruptions occur across the Great Lakes region. Current implied odds sit at near-parity (49% for a Mariners win), suggesting the market perceives minimal advantage to either side at the time of pricing.

Historical matchup data between these franchises shows the Mariners have held a slight edge in recent seasons, though Detroit has demonstrated competitive capability in June fixtures when their pitching rotation reaches full strength. The Tigers' 2024 performance trajectory and the Mariners' mid-season form entering this window will substantially influence how traders should weight the current probability. Comparable June games between AL Central and AL West teams typically see probability shifts of 3–7 percentage points once starting pitcher confirmations arrive, particularly if either team's ace is unavailable.

Traders monitoring this market programmatically should track roster announcements through official MLB channels and team injury reports, which typically release 24–48 hours before game time. Precipitation forecasts for Detroit on 7 June warrant attention given the settlement clause for postponements. Recent form data—specifically each team's record in their preceding five games and bullpen usage patterns—provides quantifiable inputs for conditional order logic. Any late-breaking lineup changes or weather alerts should trigger automated probability recalibration, as these factors historically shift market odds by measurable margins in pre-game windows.

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

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.

What does it cost to trade on Polymarket Bot UK?

Zero. Polymarket Bot UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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 Bot UK triggers a quick verification flow that finishes in 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.