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St. Louis Cardinals vs. Cincinnati Reds

How the prediction markets are pricing "St. Louis Cardinals vs. Cincinnati Reds" — Polymarket mid plus comparison with Betfair and Manifold.

1st 5 Innings O/U 2.5 72% 1st 5 Innings O/U 3.5 59% O/U 7.5 57% O/U 8.5 49% Volume: $132K Liquidity: $2.0M Closes: 26 Aug 2026
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St. Louis Cardinals vs. Cincinnati Reds

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Oscar Predictions 2026) Pick
polygram.ink (preferred broker)
72% 28% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Trade this market →
Polymarket (direct)
polymarket.com
72% 28% 0% Geo-blocked in US/UK/EU USDC, on-chain Trade this market →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Trade this market →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Trade this market →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Trade this market →

Outcome probabilities

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

OutcomeProbability
1st 5 Innings O/U 2.572%
1st 5 Innings O/U 3.559%
O/U 7.557%
O/U 8.549%
NRFI48%
1st 5 Innings O/U 4.546%
St. Louis Cardinals vs. Cincinnati Reds44%
O/U 9.540%
Spread -1.539%
1st 5 Innings Spread -1.537%
1st 5 Innings O/U 5.534%
Spread -1.533%
Spread -2.528%
1st 5 Innings O/U 6.525%
Spread -2.523%
1st 5 Innings Spread -1.522%
Extra Innings9%

Market context

The St. Louis Cardinals face the Cincinnati Reds in a regular-season MLB matchup on 19 August at 6:40PM ET. The current crowd-implied probability of 44% for a Cardinals victory reflects modest confidence in the visiting team, despite St. Louis holding a slight historical edge in head-to-head records against Cincinnati over recent seasons. The settlement window extends to 26 August, allowing for postponement resolution should weather or scheduling conflicts arise.

Historical precedent suggests that mid-August regular-season games between division rivals tend to track closely with team form at that juncture rather than season-long records. The Cardinals' 2026 performance trajectory through July and early August will be the primary determinant; a team in playoff contention typically commands higher implied probability than a rebuilding squad. Cincinnati's pitching rotation depth and injury status heading into late August similarly influences market pricing, as starting pitcher availability often shifts probabilities by 5–8 percentage points in baseball markets.

Traders should monitor roster announcements in the week preceding the fixture, particularly any late-season trades or injury updates affecting either bullpen or starting rotation. Recent precedent from comparable division matchups shows that lineup changes announced within 48 hours of game time can shift probabilities materially. Weather forecasts for St. Louis on 19 August may also warrant attention, as evening thunderstorms in the region occasionally trigger postponements that reset market conditions.

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 72% for "St. Louis Cardinals vs. Cincinnati Reds".

1st 5 Innings O/U 2.5 72% Other 28%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $132K.

Methodology

Entertainment-specific comparison page for St. Louis Cardinals vs. Cincinnati Reds. Polymarket's live quote (Polygon order book) shows the award probability. For awards markets, Polymarket usually has the deepest liquidity; Betfair runs comparable markets for Oscars/Emmys; Manifold for Eurovision.

Resolution & payout

Entertainment markets settle on official award ceremony or show end. Polymarket uses UMA Optimistic Oracle with a source URL to the official award website. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Which entertainment markets are available?
Oscars / Academy Awards (Best Picture, Best Director, Best Actor/Actress), Eurovision Song Contest, Emmy Awards, Grammy Awards, Golden Globes, plus reality-TV outcomes (Bachelor, Survivor). Volume usually sits in the five- to six-figure range per market.
When do award markets resolve?
After the official announcement — e.g. Oscars ceremony end for Academy Awards markets, Eurovision final end for ESC markets. UMA Optimistic Oracle typically uses the official award website as the resolution source.
What was the top Oscar 2025 market?
Best Picture, with ~$2.8M volume on Polymarket. "Anora" started as an underdog at ~8% and closed at ~62% before the ceremony — the biggest single Oscar market swing since 2019.
Are there politics-entertainment crossover markets?
Yes — e.g. "Will X be parodied on SNL?", "Who will host the next Oscars?". These have thinner liquidity but offer alpha for traders who read pop-culture and political worlds together.
Is entertainment trading worth the effort?
Niche, but lucrative for experts. Award markets have fewer informed traders than political markets; combining industry expertise (film, music) with active research often surfaces mispricings. Volume cap: large bets move the market.
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Related Topics

Sports