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Chicago White Sox vs. St. Louis Cardinals

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

1st 5 Innings O/U 2.5 81% 1st 5 Innings O/U 3.5 57% 1st 5 Innings O/U 6.5 54% O/U 7.5 53% Volume: $284K Liquidity: $453K Closes: 19 Sept 2026
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Chicago White Sox vs. St. Louis Cardinals

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Kalshi vs Polymarket) Pick
polygram.ink (preferred broker)
81% 19% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle View on Polymarket →
Polymarket (direct)
polymarket.com
81% 19% 0% Geo-blocked in US/UK/EU USDC, on-chain View on Polymarket →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD View on Polymarket →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR View on Polymarket →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) View on Polymarket →

Outcome probabilities

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

OutcomeProbability
1st 5 Innings O/U 2.581%
1st 5 Innings O/U 3.557%
1st 5 Innings O/U 6.554%
O/U 7.553%
Chicago White Sox vs. St. Louis Cardinals50%
1st 5 Innings Spread -1.550%
1st 5 Innings Spread -1.550%
Extra Innings50%
NRFI49%
1st 5 Innings O/U 5.547%
O/U 8.544%
1st 5 Innings O/U 4.544%
Spread -1.537%
O/U 9.534%
Spread -1.532%
Spread -2.527%
Spread -2.523%

Market context

Market consensus: 81% chance of chicago white sox vs. st. louis cardinals. Prediction markets aggregate real capital to produce this probability signal. In the upcoming MLB game between the Chicago White Sox and St. Louis Cardinals, scheduled for September 11 at 8:15PM ET: This market will resolve to "Chicago White Sox" if the Chi…

Live Data & Statistics

The Polymarket order book prices 1st 5 Innings O/U 2.5 at 81% for "Chicago White Sox vs. St. Louis Cardinals".

1st 5 Innings O/U 2.5 81% Other 19%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $284K.

Methodology

This page reviews Chicago White Sox vs. St. Louis Cardinals across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi vs Polymarket, which mirrors the Polymarket order book at 0% fees.

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

Is this market available outside the US?
Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
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.
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?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
and

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Related Topics

Sports