Houston Astros vs. Chicago Cubs

Platform comparison

Active sub-markets

Market context

Polymarket is pricing the Houston Astros at 44% to beat the Chicago Cubs, so the Cubs remain the narrower favourite on the contract. For Polymarket users, that means the current YES side is trading below a coin-flip price even though the market settles only on the official result and pays out in USDC on Polygon via the usual conditional token structure. In practical terms, the spread reflects a view that Houston need to outperform the live MLB baseline to justify a move higher.

The shape of the price fits the broader form lines rather than one isolated number. ESPN has Chicago at 29-21 overall and 18-8 at home, while Houston are 20-31 and 8-17 away, with the Cubs also carrying the better on-base profile. ESPN’s game page listed Chicago around -144, which is consistent with a mid-50s implied win chance and close to Polymarket’s 44% Astros price once vig and market structure are considered. That leaves the contract sensitive to any line-up or pitching news, but not obviously mispriced on form alone.

Traders should watch the confirmed starters, late scratches and any weather-related delay, because this market stays open if the game is postponed and only resolves once the official game is completed. A recent ESPN preview page and MLB schedule listing both point to the same 2:20 pm local start window at Wrigley Field, with the series continuing the next day if needed. In that setup, any change to the rotation or a rescheduled first pitch can matter more here than in a standard single-game market, especially with settlement tied strictly to the governing body’s final statistics.

Sources: 1 · 2 · 3 · 4 · 5

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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.