St. Louis Cardinals vs. New York Mets

Platform comparison

Active sub-markets

Market context

The Cardinals travel to Queens for a day game against the Mets on 11 June at 1:10 PM ET. Polymarket currently prices this matchup at 50-50 across conditional USDC tokens on Polygon, reflecting genuine uncertainty between two teams separated by geography and recent form. Settlement occurs on 18 June, allowing seven days for the game to conclude and official MLB statistics to confirm the outcome.

St. Louis enters June with a middling record typical of their recent seasons—competitive but inconsistent. The Mets, meanwhile, have cycled through managerial and roster changes that create volatility in their performance trajectory. Historical head-to-head records between these franchises show no pronounced dominance; since 2020, each has claimed roughly equal share of victories. The current even split on Polymarket reflects this parity rather than any sharp analytical edge favouring either side.

Traders should monitor pitching assignments and injury reports released in the days before 11 June, as starting pitcher quality often drives single-game pricing. Recent weather forecasts for New York may also shift the contract if rain threatens the scheduled 1:10 PM start, potentially triggering postponement mechanics that keep the market open. Any late-breaking roster moves—particularly if either team places a key position player on the injured list—could create repricing opportunities on-chain before settlement. The USDC liquidity pool on Polygon will reflect these adjustments as new information surfaces.

Methodology

We track St. Louis Cardinals vs. New York Mets on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

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 Scam?, 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.

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.

What does it cost to trade on Polymarket Scam??

Zero. Polymarket Scam? routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.