New York Mets vs. Cleveland Guardians

Platform comparison

Market context

The New York Mets are scheduled to play the Cleveland Guardians in Cleveland, and this market resolves to the team that wins the game, with postponed games staying open until completion and a cancelled or tied game settling 50-50. In prediction-market terms, a **YES** share pays out if the named outcome happens, while a **NO** share pays out if it does not; at a crowd-implied probability of **44% YES**, the market is pricing the Mets as the underdog relative to the Guardians. [17][16]

That reading is broadly in line with outside previews. Several recent matchup pages put Cleveland slightly ahead, with moneyline prices around Guardians -150 to -155 and Mets +128 to +141, while model-based win chances cluster in the low-to-mid 50s for Cleveland. [3][12][14] For a new reader, the key point is that a 44% price does not mean the Mets are impossible to win; it means traders currently see Cleveland as the more likely winner, but still expect a competitive game rather than a lopsided one. [8][9]

The main catalysts to watch are the confirmed starting pitchers, any late lineup scratches, and weather or scheduling changes that could delay first pitch or trigger a postponement. Recent previews identified Sean Manaea and Joey Cantillo as the probable starters, and those pitching matchups often move short-horizon baseball prices because they change expected run prevention and late-game bullpen usage. [4][9] The market’s settlement window runs well beyond the scheduled start, so if the game is postponed and played later, the contract remains live until the official final result is posted; if it is wiped out entirely, it resolves 50-50. [17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews New York Mets vs. Cleveland Guardians 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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.