New York Mets vs. Miami Marlins

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Active sub-markets

Market context

The New York Mets travel to Miami on 24 May for an afternoon fixture against the Marlins, with the market currently pricing a Mets victory at 31 per cent implied probability. This represents a substantial underdog position for the visiting side, suggesting the crowd expects Miami to hold advantage in this regular-season matchup.

The Mets' recent form and roster composition provide context for the modest confidence in their chances. New York has struggled with consistency through the early MLB season, whilst Miami's home record at loanDepot park has historically favoured the Marlins in May matchups. Comparable May contests between these division rivals over the past three seasons show the home team winning approximately 58 per cent of the time, which aligns reasonably with the current 69 per cent implied probability for Miami. The Mets' injury status and bullpen availability heading into late May typically influences these probabilities significantly, as does Miami's performance trajectory through the preceding weeks.

Traders should monitor pitching assignments confirmed in the 48 hours before the fixture, as starting pitcher quality materially shifts these odds. Recent ESPN MLB coverage and official MLB roster updates will clarify whether either team faces unexpected absences. Weather conditions at loanDepot park on 24 May—particularly wind direction affecting fly-ball outcomes—have historically influenced totals and moneyline movement in this venue. The settlement window extends to 31 May, allowing for postponement scenarios common in late May scheduling.

Methodology

This page tracks New York Mets vs. Miami Marlins across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. PolyGram routes every trade through to Polymarket — at 0% fees.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, 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, PolyGram triggers a quick verification flow that finishes in minutes.