Cleveland Guardians vs. Houston Astros

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Active sub-markets

Market context

The Cleveland Guardians’ visit to Houston comes after the Astros opened the series with a 9-3 win, a result that matters more to the market than the crowd’s 17% yes price suggests because it confirms the home side already has the recent edge in both power and run scoring.[1][8] Houston’s offence was driven by Jose Altuve and Jeremy Peña, with Peña producing two home runs, while Cleveland’s bats managed only three runs, so the immediate form case is leaning against a Guardian upset unless the lineup context changes sharply.[1][2]

Historically, a market priced this low is usually reading as a strong underdog spot rather than a coin flip, especially when the away team has just been outscored by six runs the previous night and has to answer quickly in the same venue.[1][5] The most relevant comparable frame is not season record alone but recent head-to-head performance in the matchup itself: Houston is already in front in the series and has shown the more damaging extra-base profile, which tends to pull short-horizon probabilities towards the Astros unless Cleveland gets a clear pitching or lineup boost.[1][8]

The main catalysts to watch are the confirmed starter, any late scratches, and whether Cleveland can restore its regular run-production pieces after the Friday loss, because this market will move most on batting-order news rather than broader season standings.[6][8] The game is listed for Daikin Park with FOX and MLB.TV coverage, and the official game story should be checked near first pitch for final line-ups and any last-minute roster changes that could sharpen or weaken the Guardians’ already slim path.[6][8]

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 Champions League Prediction, 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

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How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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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.