New York Mets vs. Cleveland Guardians

Platform comparison

Market context

The New York Mets face the Cleveland Guardians in an MLB game at Progressive Field, and the crowd price of **71% YES** implies a fairly strong lean towards New York rather than a coin-flip outcome. That sits above most published pre-game moneyline estimates, which generally had Cleveland as a modest home favourite and New York as the underdog, so the market is pricing more Mets win probability than the betting market consensus suggested earlier in the day.[2][3][4]

For historical framing, the cleanest read is to treat this as a live probability check against an underdog that has recently been priced in the low-to-mid 40s or high 40s on moneyline-style market shares, depending on the source and timestamp.[8][13] Model-based previews were mixed but usually still favoured Cleveland by a narrow margin, with projections such as 52.7%, 52.8%, or 57.9% for the Guardians, which makes a 71% Mets price materially more aggressive than those comparables.[11][14][8] In programmatic terms, that gap is the sort of signal a bot would flag for potential mispricing against external odds feeds.

The main catalysts to watch are the confirmed starting pitchers, late lineup changes, and any weather or scheduling update that could affect whether the game starts on time or is pushed back, because the settlement rules stay open if the game is postponed and only close on a completed result or a 50-50 split in a cancellation or tie.[2][3] If you are automating around this market, the practical dependencies are the official MLB game status, the final box score, and any scrape of late-breaking injury or rest news, since those inputs can move both the trading price and the final resolution path.[5][16]

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 Polymarket Bot 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.

UK Frequently Asked Questions

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 Polymarket Bot UK. 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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.