Seattle Mariners vs. Detroit Tigers

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Active sub-markets

Market context

The Seattle Mariners travel to Detroit for a regular-season matchup against the Tigers on 7 June at 1:40 PM ET. The settlement window extends to 14 June, allowing for postponements or rescheduled games within that six-day buffer. Current implied odds sit at 49% for a Mariners victory, reflecting near-parity in market expectations despite Seattle's stronger recent divisional standing.

Historical context matters here: the Mariners have won roughly 53% of their matchups against Detroit over the past three seasons, though this advantage narrows considerably in early June when both teams are still establishing their pitching rotations and lineup consistency. The Tigers' home-field advantage at Comerica Park typically shifts the baseline by 2–3 percentage points in their favour. At 49% for Seattle, the market is pricing in Detroit's home benefit whilst acknowledging the Mariners' marginal talent edge—a reasonable equilibrium for a mid-season divisional contest.

Traders automating positions should monitor starting pitcher announcements, typically confirmed 48 hours before first pitch. Recent injury reports (as of early June) will affect bullpen depth; Detroit's relievers have shown volatility this season, whilst Seattle's closer situation remains stable. Weather conditions at Comerica Park—particularly wind direction affecting fly-ball outcomes—warrant tracking through meteorological feeds. Any roster moves or unexpected absences announced between now and game time will shift the probability meaningfully, particularly if either team's primary starter is replaced.

Methodology

This page reviews Seattle Mariners vs. Detroit Tigers across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket App UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 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.

What does it cost to trade on Polymarket App UK?

Zero. Polymarket App 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 App 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.