Pronóstico: Chicago Cubs vs. St. Louis Cardinals

Platform comparison

Market context

Chicago Cubs vs. St. Louis Cardinals is priced at **47% YES** on Polymarket, with the contract settling in USDC on Polygon through conditional tokens rather than a traditional sportsbook ticket. For a user, that means the market is simply asking whether the Cubs win the game; if the game is postponed, the contract stays open until completion, while a cancellation with no make-up game or a tie resolves 50-50 under the market rules.

That 47% sits in the middle of a rivalry that has already been competitive this season. The clubs split their late-May meetings 1-1, with St. Louis winning 6-5 on 29 May and Chicago responding 6-1 on 31 May, and recent head-to-head history has leaned slightly towards the Cubs over a larger sample. Current season records in the live game listings also point to the Cubs as the stronger side overall, with Chicago around the low-90s in wins and St. Louis in the high-70s, which helps explain why the price is close to even rather than drifting heavily to one team. [1][4][6][9]

For traders, the main catalysts are the confirmed starting line-ups, any late pitching changes, and whether the game is completed on schedule, because postponement risk leaves the market open until a make-up is played. The official MLB game feed and major scoreboards are the practical references for live status, while team-specific reporting has shown the Cubs arriving with a strong recent offensive stretch, including multiple high-hit games, which can move expectations if a line-up is adjusted. [1][3][11]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Pronóstico: Chicago Cubs vs. St. Louis Cardinals across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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.