Chicago Cubs vs. Pittsburgh Pirates

Platform comparison

Market context

On 25 July, the Chicago Cubs will face the Pittsburgh Pirates in a regular-season Major League Baseball matchup at 6:40 PM Eastern Time. A prediction market has opened on the outcome, with traders currently pricing a Cubs victory at 47 per cent. When you purchase a YES share, you're betting the Cubs win; a NO share represents a Pirates victory. The market settles based on official MLB records once the game concludes, with a 50-50 split only if the match is cancelled without a rescheduled date or ends in a tie—an exceptionally rare occurrence in baseball.

The current 47 per cent probability reflects a near-even matchup, though Cubs-Pirates contests have historically favoured Chicago. Over the past five seasons, the Cubs have won approximately 55 per cent of head-to-head meetings. This year's Cubs team has maintained a winning record through late July, whilst Pittsburgh has struggled with a below-.500 record for most of the season. The implied probability suggests traders view this as a toss-up despite Chicago's structural advantages, possibly accounting for recent form volatility or injury concerns.

Traders monitoring this market should track roster updates through 24 July, particularly starting pitcher assignments and any late-breaking injuries to key position players. Weather conditions at the venue and recent bullpen usage patterns across both teams merit attention. The settlement window extends to 1 August to accommodate any postponements, though games rescheduled within the regular season will trigger resolution once completed.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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.

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 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 Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.