Cincinnati Reds vs. St. Louis Cardinals

Platform comparison

Active sub-markets

Market context

The Cincinnati Reds travel to St. Louis on 7 June for an afternoon fixture against the Cardinals, with Polymarket currently pricing a Reds victory at 39 cents on the dollar. This implies roughly a 39% implied probability, leaving the Cardinals as the favoured outcome at settlement odds. The contract trades on Polygon as conditional USDC tokens, resolving either to the Reds or Cardinals upon game completion, with a 50-50 split only if the match is postponed indefinitely or cancelled without a make-up fixture.

Historical matchups between these division rivals show the Cardinals have held a structural advantage in recent seasons. Over the past five years, St. Louis has won approximately 52% of regular-season contests against Cincinnati, though this varies considerably by year and roster composition. The 2024 season context matters here: both teams' current win-loss records, injury status, and recent form against comparable opponents will shape whether the 39% Reds probability reflects genuine underdog value or appropriate pricing given their recent performance trajectory.

Traders should monitor starting pitcher announcements, typically confirmed 24–48 hours before first pitch, as pitching matchups historically shift win probabilities by 3–5 percentage points in baseball markets. Weather conditions at Busch Stadium—temperature, wind direction, and precipitation forecasts—can favour either team's offensive profile. Recent roster moves, including trades or callups from minor league affiliates, occasionally shift competitive balance. The settlement window closes 14 June at 18:15 UTC, allowing roughly one week post-game for official MLB statistics to be finalised and confirmed as the primary resolution source.

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 Kalshi UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

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 Kalshi UK?

Zero. Kalshi 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, Kalshi UK triggers a quick verification flow that finishes in 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.