New York Mets vs. Seattle Mariners

Platform comparison

Active sub-markets

Market context

The New York Mets travel to Seattle on 1 June for a regular-season matchup against the Mariners, with first pitch at 9:40 PM Eastern Time. The market's 44% implied probability for a Mets victory reflects modest favouritism towards the home side, though the Pacific time-zone fixture introduces scheduling variables that historically affect performance metrics in cross-continental contests.

Comparable regular-season MLB markets at this probability threshold typically hinge on recent form, injury status, and bullpen availability rather than season-long records. The Mets' win-loss trajectory through May and the Mariners' home-field advantage in June contests provide empirical anchors for assessing whether 44% undervalues or overvalues New York's chances. Historical data on East Coast teams playing evening games in the Pacific zone shows marginal variance from neutral-site expectations, though travel fatigue and circadian disruption occasionally shift outcomes by 2–3 percentage points.

Traders should monitor roster updates through to game time, particularly any late-inning pitcher availability or position-player injuries announced within 48 hours of play. Starting-pitcher matchup details—earned-run average, recent form, and bullpen support—typically emerge 24 hours prior. The settlement window extends to 9 June, allowing for postponement resolution should weather or other factors delay the contest. Under German GlüStV and US CFTC frameworks, this market remains accessible to traders without KYC verification up to cumulative positions of $1,500 USD equivalent, though jurisdictional restrictions apply to certain US states and EU member territories. Official MLB statistics serve as the binding resolution source.

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 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.

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 does it cost to trade on Polymarket KYC UK?

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

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket KYC 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.