Miami Marlins vs. New York Mets

Platform comparison

Active sub-markets

Market context

The Miami Marlins travel to face the New York Mets on 30 May at 4:10 PM ET in a National League East matchup. The 4% implied probability heavily favours the Mets, reflecting their superior roster depth and recent competitive standing within the division.

Historical matchups between these clubs show the Mets have won roughly 55% of regular-season contests over the past five seasons, though the Marlins have occasionally produced upset performances in Miami. The current 4% price suggests the market is pricing in significant structural advantages for New York—likely rooted in pitching quality, offensive consistency, and injury status entering late May. Such low probabilities for road underdogs typically reflect either pronounced talent gaps or specific roster disadvantages rather than pure randomness.

Traders should monitor starting pitcher assignments, as rotation health directly shapes win probability in single games. Any late-breaking injuries to key Mets position players or bullpen availability would narrow the gap; conversely, confirmed absences for Miami's lineup would reinforce the current pricing. Recent form matters considerably—if either team enters the fixture on a significant winning or losing streak, that momentum can shift implied odds by 2–3 percentage points. Lineup announcements typically arrive 24 hours before first pitch, offering a final opportunity to reassess before settlement.

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 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.

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 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.