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St. Louis Cardinals vs. Colorado Rockies

How the prediction-market book is pricing "St. Louis Cardinals vs. Colorado Rockies" right now, with a side-by-side platform comparison and zero-fee CTAs.

O/U 9.5 63% St. Louis Cardinals vs. Colorado Rockies 59% O/U 7.5 52% 1st 5 Innings Spread -1.5 50% Volume: $118K Liquidity: $170K Closes: 13 Sept 2026
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St. Louis Cardinals vs. Colorado Rockies

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Best Prediction Markets) Pick
polygram.ink (preferred broker)
 63% 37% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
 63% 37% 0% Geo-blocked in US/UK/EU USDC, on-chain Live odds →
Kalshi
kalshi.com
 — — Up to 7% per trade US-only, KYC required USD Live odds →
Betfair Exchange
betfair.com
 — — 2-5% commission Full KYC from first trade GBP / EUR Live odds →
Manifold Markets
manifold.markets
 — — Play-money (mana) None — play-money Mana (no cash-out) Live odds →

Outcome probabilities

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

OutcomeProbability
O/U 9.563%
St. Louis Cardinals vs. Colorado Rockies59%
O/U 7.552%
1st 5 Innings Spread -1.550%
1st 5 Innings O/U 2.550%
1st 5 Innings O/U 3.550%
1st 5 Innings O/U 4.550%
1st 5 Innings O/U 5.550%
1st 5 Innings O/U 6.550%
Extra Innings50%
1st 5 Innings Spread -1.549%
Spread -1.546%
O/U 8.543%
Spread -2.534%
O/U 10.526%
Spread -1.523%
O/U 11.518%
O/U 12.515%
Spread -2.514%
NRFI0%

Market context

Live Polymarket data shows 63% YES probability for St. Louis Cardinals vs. Colorado Rockies. In the upcoming MLB game between the St. Louis Cardinals and Colorado Rockies, scheduled for September 5 at 8:10PM ET: This market will resolve to "St. Louis Cardinals" if the St. Louis Cardinals win…

Live Data & Statistics

The Polymarket order book prices O/U 9.5 at 63% for "St. Louis Cardinals vs. Colorado Rockies".

O/U 9.5 63% Other 37%

Live stats load when the match begins. Current market odds are shown above. Trading volume: $118K.

Methodology

This page reviews St. Louis Cardinals vs. Colorado Rockies 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 Best Prediction Markets, which mirrors the Polymarket order book at 0% fees.

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

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 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.
Do I need to KYC for this market?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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.
Maya TorresMaya TorresFinancial Markets WriterandPriya SharmaPriya SharmaCrypto & DeFi Analyst

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