St. Louis Cardinals vs. Cincinnati Reds

Platform comparison

Active sub-markets

Market context

The Cardinals travel to Cincinnati on 24 May for a day game against the Reds, with Polymarket currently pricing a Cardinals victory at 48% (reflected in USDC settlement on Polygon). This matchup falls within the National League Central division, where both clubs compete for playoff positioning through the season's second month. The conditional token structure means traders holding YES shares profit if St. Louis wins; those holding NO shares profit on a Reds victory. The settlement window extends to 31 May, allowing for rescheduling should weather or other factors postpone the fixture.

Historical head-to-head records between these franchises show competitive balance, though recent seasons have favoured the Cardinals slightly in divisional play. The 48% probability reflects genuine uncertainty rather than a heavy lean toward either side, consistent with how Polymarket prices mid-table MLB matchups where neither team holds dominant form entering late May. Both clubs' records through April and early May will have shaped this valuation, alongside strength-of-schedule considerations for the weeks preceding this game.

Traders should monitor starting pitcher assignments, as these typically drive meaningful probability shifts in baseball markets. Injury reports for key position players—particularly any late-week developments affecting either lineup—can move prices noticeably in the days before first pitch. Weather conditions at Great American Ball Park merit attention given the 1:40 PM ET start time, as rain or wind could influence game dynamics or trigger postponement. Recent performance trends, including each team's record in day games and performance against comparable opponents, provide additional context for assessing whether the current 48% fairly reflects underlying matchup strength.

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

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 PolyGram?

Zero. PolyGram 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, PolyGram 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.