New York Mets vs. Cleveland Guardians

Platform comparison

Market context

Polymarket has this contract at **44% YES** for the **New York Mets** to win, which means the market is pricing Cleveland as the likelier side but still leaving a meaningful chance of a Mets upset. Because settlement is on-chain in **USDC** via **Polygon** conditional tokens, the contract should track the game result precisely: if the Mets win, YES settles, while a Guardians win settles NO; a postponement keeps it open until the game is completed, and a cancellation or tie resolves 50-50.

That 44% sits in the same broad range as the wider pre-game market, where recent moneyline quotes have shown Cleveland as a modest favourite and New York as a live underdog. Independent previews have had the Guardians around the low- to mid-50s in win probability, with one Polymarket-focused report listing Mets moneyline near 42¢ and Guardians near 59¢, while another analysis put Cleveland at roughly 51.5% to 53% to win. [9][10][16] For a Polymarket user, that matters because this is not a long-shot binary; it is a fairly efficient baseball price where the edge can move quickly with lineup news or pitching confirmation.

The main catalysts are the **confirmed starters**, any late scratches, and whether the game starts on time at 6:40 pm ET, since MLB markets can reprice sharply once line-ups are posted and weather or travel risk is reduced. Current previews have pointed to a left-handed pitching matchup, with Sean Manaea listed for the Mets and Joey Cantillo for Cleveland, and recent betting write-ups have kept the total around 7.5 runs rather than expecting a blowout. [3][4][13] On a live market, the practical dependency is simple: if the game is delayed or suspended, the contract remains open until official completion, so traders are pricing both the teams and the schedule around the same settlement rules.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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.

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?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram 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.