Cincinnati Reds vs. St. Louis Cardinals

Platform comparison

Market context

The Cincinnati Reds are trading at **42%** on Polymarket, so the contract is pricing St. Louis as the slight favourite in tonight’s matchup, but still leaving the game close enough for a single swing, bullpen decision, or late defensive sequence to matter. On Polymarket, this exposure sits in **USDC** on **Polygon**, and the contract settles through conditional tokens: if the Reds win, the market resolves YES; if the Cardinals win, it resolves NO; and a postponement keeps the market open until completion, while a cancellation or tie would be split 50-50.

Recent head-to-head results support that cautious pricing. St. Louis has taken three of the four most recent meetings in the search results, including a 10-3 win on 5 June, a 6-5 win on 6 June, and a 5-3 comeback on 7 June, while Cincinnati’s best result was a 7-6 extra-innings win on 23 May.[1][2][3][4] That run suggests these teams have been capable of playing tight, high-variance games, which helps explain why the market is not moving to either side aggressively despite the Cardinals’ recent edge.

For traders, the main catalysts are straightforward: confirmed starting pitchers, late lineup changes, and any weather or schedule updates that could affect whether the game starts on time or is completed without interruption. Because this market resolves off the official final result, the practical risk is not just who is better on paper, but whether the game is fully played and recorded as scheduled; any postponement or completion delay keeps the conditional-token outcome unresolved until the official stats are final.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Cincinnati Reds vs. St. Louis Cardinals across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.