Cleveland Guardians vs. Houston Astros

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians are facing the Houston Astros in a regular-season MLB game, and the market settles on the official result: it resolves to the winning team, or 50-50 if the game is cancelled outright or ends tied. For a programme trading setup, that means the key input is not the pre-game price alone but the state of the fixture itself: confirmed first pitch, any postponement notices, and whether a suspended game later reaches completion within the settlement window.

A 4% yes price is low relative to the simplest historical read: Houston has generally held the edge in the matchup, including a 2-1 season record against Cleveland this year and a broader head-to-head lead in recent seasons[8][2]. ESPN lists Cleveland at 41-36 and first in the AL Central, while Houston is 36-42 and fourth in the AL West, so the market is not pricing the stronger overall standings team; it is pricing the specific game state and likely rotation, bullpen, and venue factors around this single meeting[6]. That makes it a classic candidate for automated monitoring rather than static conviction.

The main catalysts are lineup confirmation, starting pitcher announcement, late injury scratches, and any weather or schedule change that could push the game into a postponement or suspension. ESPN’s live game listing identifies the matchup and notes “Bazzana leads Guardians against the Astros after 4-hit game”, which underlines that pre-match information is still moving and can re-rate short-dated markets quickly[6]. For a bot or copy-trading workflow, the practical trigger is the official game feed: if the event remains on schedule, the probability should mostly track team news; if it slips, the settlement rules become the dominant variable because postponement keeps the market open until completion[6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

On Polymarket Review UK, 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?

Polymarket Review UK 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.

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 Polymarket Review UK?

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

Do I need to KYC for this market?

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