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St. Louis Cardinals vs. Chicago Cubs

Comparison of odds and platforms for "St. Louis Cardinals vs. Chicago Cubs" — sourced live from the Polymarket order book, curated by Kalshi Fees.

NRFI 100% 1st 5 Innings O/U 2.5 100% 1st 5 Innings O/U 3.5 100% 1st 5 Innings O/U 4.5 100% Volume: $326K Liquidity: $779K Closes: 23 Aug 2026
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St. Louis Cardinals vs. Chicago Cubs

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Kalshi Fees) Pick
polygram.ink (preferred broker)
 100% 0% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Place a position →
Polymarket (direct)
polymarket.com
 100% 0% 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
NRFI100%
1st 5 Innings O/U 2.5100%
1st 5 Innings O/U 3.5100%
1st 5 Innings O/U 4.5100%
O/U 8.578%
1st 5 Innings O/U 5.574%
O/U 9.564%
St. Louis Cardinals vs. Chicago Cubs55%
O/U 10.554%
1st 5 Innings O/U 6.551%
Spread -1.540%
O/U 11.540%
1st 5 Innings Spread -1.531%
Spread -2.527%
Spread -1.525%
Spread -2.516%
Extra Innings15%
1st 5 Innings Spread -1.511%

Market context

The St. Louis Cardinals vs. Chicago Cubs prediction market currently prices this outcome at 100% YES. In the upcoming MLB game between the St. Louis Cardinals and Chicago Cubs, scheduled for August 16 at 3:15PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win the g…

Live Data & Statistics

The Polymarket order book prices NRFI at 100% for "St. Louis Cardinals vs. Chicago Cubs".

NRFI 100% Other 0%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $326K.

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 Kalshi Fees, which mirrors the Polymarket order book directly.

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

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.
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 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.
Alex ChenAlex ChenPrediction Market AnalystandJordan LeeJordan LeeSports Prediction Reporter

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