Miami Marlins vs. New York Mets

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Active sub-markets

Market context

The Miami Marlins travel to Queens to face the New York Mets on 31 May at 13:40 ET in a regular-season National League East matchup. The current 42% implied probability for a Marlins victory reflects their status as road underdogs against a Mets side competing in a division where home-field advantage historically carries measurable weight. Both clubs enter late May with roster depth questions; the Marlins' offensive consistency remains volatile, whilst the Mets' pitching rotation depth will determine their ability to sustain early-season momentum.

Historical matchup data from the past three seasons shows the Mets hold a slight edge in head-to-head records at Citi Field, though the Marlins have produced occasional upset victories when their starting pitcher performs above seasonal average. The 42% probability sits near the long-term baseline for visiting teams in comparable divisional fixtures, suggesting the market has priced in standard home-field advantage without major injury news or recent form divergence between the clubs.

Traders monitoring this market should track lineup announcements 24 hours before first pitch, particularly any late-notice roster moves affecting either team's starting rotation or key offensive contributors. Recent weather forecasts for the New York area may influence game conditions; the Mets' ballpark plays differently in cold May weather, favouring pitchers. Deposit flexibility via Klarna, SEPA transfers, and USDC settlement options allows traders to adjust positions as new information emerges closer to the 31 May fixture, with the settlement window extending to 7 June to accommodate any postponements.

Methodology

This page reviews Miami Marlins vs. New York Mets 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 Klarna UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Klarna 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'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 Klarna UK?

Zero. Polymarket Klarna 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.

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.