St. Louis Cardinals vs. Milwaukee Brewers

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Active sub-markets

Market context

The St. Louis Cardinals travel to Milwaukee on 25 May for a regular-season matchup against the Brewers, with first pitch at 2:10 PM ET. The current crowd-implied probability of 34% for a Cardinals victory reflects modest confidence in the home side, though both franchises remain competitive within the National League Central division structure at this stage of the season.

Historical matchups between these clubs show the Brewers have held a slight edge in recent campaigns, particularly in home games at American Family Field. The Cardinals' win probability at 34% sits below their season-to-date performance metrics, suggesting the market is pricing in Milwaukee's home-field advantage and recent form. Comparable mid-season divisional contests typically see probability shifts of 5–8 percentage points based on roster availability and pitching assignments, which remain the primary drivers of movement in this betting window.

Traders should monitor lineup announcements and starting pitcher confirmation, expected 24 hours before game time. Recent injury reports from both clubs—particularly any developments affecting key position players or the rotation—will influence deposit flows and book depth on this market. Weather conditions at game time, including wind direction affecting fly-ball distances, historically correlate with volatility in baseball markets. Settlement occurs 25 June, allowing sufficient time for official MLB statistics to be recorded and verified. Payment rails including SEPA transfers and USDC settlement remain available for position management throughout the trading window.

Methodology

We track St. Louis Cardinals vs. Milwaukee Brewers 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

Is this market available outside the US?

PolyGram 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.

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.

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.