St. Louis Cardinals vs. New York Mets

Platform comparison

Active sub-markets

Market context

The St. Louis Cardinals travel to New York to face the Mets on 9 June at 7:10 PM ET in a regular-season National League matchup. The crowd-implied probability sits at 100% YES, suggesting near-certainty in the market's assessment of the outcome, though the settlement window extends to 16 June to account for potential postponements.

Historical precedent offers little guidance when a market reaches such extreme consensus. Crowd-implied probabilities at or near 100% typically reflect either a heavily favoured team facing a severely depleted opponent, or a technical artefact where limited trading volume concentrates bets on one side. Mid-June matchups between division rivals rarely generate such lopsided assessments unless injury reports or roster changes have fundamentally shifted competitive balance. The Cardinals and Mets, both capable playoff contenders in recent seasons, would require extraordinary circumstances—a starting pitcher absence, multiple position player injuries, or recent form collapse—to justify such a skewed probability.

Traders should monitor roster updates through 8 June, particularly regarding starting pitcher assignments and any late-season injury announcements from either club. Recent form matters considerably; teams entering June with winning records typically see more balanced probabilities than those struggling. Weather conditions at Citi Field could also influence the market if rain threatens the scheduled time, given the settlement clause allowing postponement without resolution. Any significant line movement in sportsbooks or updated injury reports in the 48 hours before first pitch would signal whether the 100% reading reflects genuine information or merely thin trading liquidity.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win, which mirrors the Polymarket order book directly.

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 Who Will Win, 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.

Is this market available outside the US?

Who Will Win is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 Who Will Win?

Zero. Who Will Win 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.