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Cincinnati Reds vs. St. Louis Cardinals

Five-platform snapshot of "Cincinnati Reds vs. St. Louis Cardinals" — live Polymarket pricing, plus how Kalshi, Betfair and Manifold structure the same contract.

1st 5 Innings O/U 2.5 78% 1st 5 Innings O/U 3.5 66% 1st 5 Innings O/U 4.5 52% NRFI 51% Volume: $186K Liquidity: $1.2M Closes: 2 Aug 2026
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Cincinnati Reds vs. St. Louis Cardinals

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Polymarket Scam?) Pick
polygram.ink (preferred broker)
78% 22% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Place a position →
Polymarket (direct)
polymarket.com
78% 22% 0% Geo-blocked in US/UK/EU USDC, on-chain Place a position →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Place a position →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Place a position →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Place a position →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
1st 5 Innings O/U 2.578%
1st 5 Innings O/U 3.566%
1st 5 Innings O/U 4.552%
NRFI51%
O/U 8.550%
Cincinnati Reds vs. St. Louis Cardinals46%
1st 5 Innings O/U 5.540%
O/U 9.539%
Spread -1.538%
Spread -1.534%
1st 5 Innings Spread -1.532%
O/U 10.532%
1st 5 Innings O/U 6.530%
1st 5 Innings Spread -1.528%
Spread -2.528%
Spread -2.524%
Extra Innings10%

Market context

Polymarket is pricing the **Cincinnati Reds** at **46%** in USDC on Polygon, with the contract settling through conditional tokens once the official result is posted. That implies a narrow lean towards the Cardinals, but still a near coin-flip view rather than a strong market conviction, which is typical for a single MLB game where late lineup and pitching information can move the price quickly.

Recent Reds-Cardinals meetings have already produced decisive swings that matter for how traders read a sub-50% line. St Louis beat Cincinnati **10-3** on 5 June and **5-3** on 7 June, so the market is not pricing a fresh, untested matchup; it is pricing a divisional pairing that has recently tilted towards the Cardinals in head-to-head results.[2][1] That kind of recent form can anchor traders, but in MLB it often matters less than the confirmed starter, bullpen availability, and whether either club is managing injuries or rest on game day.

For Polymarket users, the immediate catalysts are the official line-up cards, starting pitcher announcements, and any weather or postponement risk, because the market stays open if the game is delayed and only resolves on completion; a cancellation with no make-up, or a tie, would settle 50-50 under the contract rules. Since the game is listed for **2:15 PM ET**, any late scratch or schedule change can affect both the on-chain price and the eventual resolution path, so traders watching the contract usually focus on the confirmed game status before first pitch rather than the pre-game narrative alone.

Sources: 1 · 2 · 3 · 4

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 78% for "Cincinnati Reds vs. St. Louis Cardinals".

1st 5 Innings O/U 2.5 78% Other 22%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $186K.

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket Scam?, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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 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.
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Related Topics

Sports