New York Mets vs. Cleveland Guardians

Platform comparison

Market context

Polymarket is pricing the New York Mets at **44% YES** against the Cleveland Guardians, so the contract is sitting close to a coin flip with a modest lean to Cleveland on the underlying MLB side. On Polymarket, that exposure is bought and sold in **USDC** on **Polygon**, with the outcome represented by conditional tokens that settle to YES if the Mets win, NO if Cleveland wins, and 50-50 only if the game is cancelled outright, ends in a tie, or otherwise has no make-up completion.

That price is broadly in line with the wider market. Recent MLB odds and prediction pages have made Cleveland a small favourite, with moneyline pricing around Guardians -155 and Mets +128, while model-based win probabilities cluster near the mid-50s for Cleveland and the mid-40s for New York.[3][11][13][15] The shape matters because a 44% YES price implies the market has already discounted a home favourite edge, but not so far that a late shift in line-up news or pitching would be ignored.

The main catalysts are the same ones that move baseball moneylines: confirmed starting pitchers, any late scratches, and whether the game keeps its scheduled 6:40 PM ET first pitch at Progressive Field.[3][7][8] Traders also need to watch for postponement risk, because this market stays open if the game is merely delayed and only flips to 50-50 if it is cancelled with no make-up or officially ends in a tie. ESPN’s game page and live score feed show the matchup listed for 4 August, with team win probabilities still updating as the game approaches, which is the kind of dependency that can nudge Polymarket pricing right up to settlement.[15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track New York Mets vs. Cleveland Guardians across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.