St. Louis Cardinals vs. New York Mets

Platform comparison

Active sub-markets

Market context

The St. Louis Cardinals will travel to Citi Field on 9 June 2026 for a regular-season Major League Baseball fixture against the New York Mets, with first pitch scheduled for 19:10 ET. Resolution hinges on the official final result as recorded by MLB; postponement extends the market window until completion, whilst cancellation without a rescheduled make-up game triggers a 50-50 split. The current crowd-implied probability of 100% YES reflects either extreme confidence in a Cardinals victory or, more likely, technical constraints within the prediction market's pricing mechanism.

Historical precedent from comparable MLB markets shows that pre-game probabilities of this magnitude typically signal either missing liquidity depth or a data-feed lag rather than genuine certainty. Regular-season matchups between division rivals rarely achieve such skewed odds when both teams field competitive rosters. The Mets' recent performance trajectory and the Cardinals' pitching availability in early June will materially influence actual game outcomes; markets with insufficient trading volume often display probability extremes that correct sharply once deeper order books form.

Traders should monitor roster announcements through early June, particularly injury reports affecting starting pitchers for both sides. Weather forecasts for the New York area warrant attention given the settlement window's extension clause for postponements. Under German GlüStV regulations, this market's accessibility remains subject to local licensing frameworks, whilst CFTC oversight applies to US-domiciled traders. The no-KYC threshold of $1,500 USD per transaction permits entry without identity verification up to that stake level, though aggregate exposure across multiple markets may trigger enhanced due diligence requirements depending on operator jurisdiction.

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 Polymarket Tax UK, 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.

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 Polymarket Tax UK?

Zero. Polymarket Tax UK 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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Tax UK triggers a quick verification flow that finishes in minutes.