New York Mets vs. Seattle Mariners

Platform comparison

Active sub-markets

Market context

The Mets travel to Seattle for a Monday evening matchup on 1 June, with the market currently pricing a Mets victory at 46 per cent. This represents a slight lean towards the Mariners despite New York's stronger recent record. The Mets have won 11 of their last 15 games heading into June, whilst Seattle sits at 5–10 over the same stretch, a significant form differential that typically commands higher confidence in the favoured side.

Historically, the Mets hold a marginal edge in head-to-head matchups against the Mariners over the past three seasons, though neither team has established dominance in the fixture. The current 46 per cent probability suggests the market is pricing in factors beyond raw form—likely Seattle's home-field advantage at T-Mobile Park, where the Mariners have performed better than their overall record indicates, and potential roster concerns for New York. Injury updates to either team's rotation or key position players in the days before 1 June will be critical; the Mets have dealt with rotation depth issues earlier in the season.

Traders should monitor starting pitcher assignments, which typically become official 48 hours before first pitch. Weather conditions at T-Mobile Park—notably wind direction affecting fly-ball distance—can shift outcomes in a ballpark known for variable offensive production. Any late-inning roster moves or unexpected absences announced on game day will create volatility. The settlement window extends to 9 June, allowing for postponement resolution should weather force a reschedule.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Champions League Prediction, which mirrors the Polymarket order book directly.

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 Champions League Prediction, 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?

Champions League Prediction 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.

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 Champions League Prediction?

Zero. Champions League Prediction 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.