Houston Astros vs. Chicago Cubs

Platform comparison

Active sub-markets

Market context

The Houston Astros face the Chicago Cubs on 24 May at 2:20 PM ET in a regular-season Major League Baseball fixture. Current crowd-implied probability favours the Astros at 60%, with the Cubs priced at 40%. Settlement occurs by 31 May 2026, allowing five trading days post-game for final official statistics to be confirmed by MLB.

Historically, the Astros have maintained a stronger win percentage against the Cubs over recent seasons, though regular-season matchups between division rivals often exhibit volatility unrelated to season-long records. The Cubs' 40% implied probability reflects their status as road underdogs; home-field advantage typically shifts probability by 3–5 percentage points in MLB markets. Comparable games between these franchises in 2024 and 2025 showed Cubs victories in roughly 45% of contests, suggesting current pricing sits within historical ranges for inter-league play.

Traders should monitor roster announcements through 24 May, particularly starting pitcher confirmations and injury updates affecting either team's bullpen depth. Recent weather forecasts for the game venue merit attention, as rain delays or cancellations would extend the settlement window. From a regulatory standpoint, this market's accessibility varies by jurisdiction: under German GlüStV provisions, sports prediction markets require operator licensing; US CFTC oversight applies to derivatives-like instruments, though binary sports outcomes typically fall outside direct CFTC reach. The "no-KYC up to $1,500" threshold common in some jurisdictions means traders can access this specific market without identity verification if their position remains below that notional value, though operators remain obliged to report suspicious activity patterns regardless of KYC exemptions.

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.