Miami Marlins vs. New York Mets

Platform comparison

Market context

The Miami Marlins and New York Mets are due to meet again in a regular-season MLB game, and in this market a **YES** share pays out if Miami wins, while a **NO** share pays out if New York wins; if the game is postponed, the market stays open until the game is completed, and a cancellation or tie would settle 50-50. With the crowd pricing Miami at 45% implied probability, the market is slightly leaning towards the Mets, but not by a wide margin.

Recent head-to-head results give traders a useful frame: the Mets have won three of the five meetings cited in the results, including 4-2 on Thursday and 5-2 on Friday, while Miami has also taken games in the same stretch, showing that the matchup has not been one-way.[2][4][5][19] Season context matters too, because both clubs have spent much of 2026 in the middle of the pack rather than playing like dominant favourites; team-level records in the supplied sources are close enough that single-game factors such as starting pitching and bullpen usage can move the price materially.[4][11][16]

The main catalysts to watch are the confirmed line-ups, the starting pitchers, and any late changes to the schedule or venue, because those can matter more than season averages in a one-game market. The market description makes completion status especially important: postponement leaves the market unresolved, so traders should track official MLB announcements up to first pitch and any in-game weather or suspension risk. Recent game coverage also shows the series has been tight and high-variance, including extra-innings and one-run margins, which helps explain why a sub-50% price on Miami can still be consistent with a live upset chance.[5][18][20]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Miami Marlins vs. New York Mets across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Market UK, which mirrors 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

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.