Cleveland Guardians vs. Houston Astros

Platform comparison

Active sub-markets

Market context

The Cleveland Guardians and Houston Astros meet in Houston after the Astros’ 9-3 win on 19 June, a result driven by José Altuve’s three-run homer and two solo shots from Jeremy Peña.[1] Houston has also taken three straight in the matchup, which gives the market’s 3% implied yes price a clear underdog flavour: the Guardians need a road win, but recent head-to-head form has tilted the other way.[2][6]

The broader frame is mixed rather than one-sided. ESPN’s game page lists Cleveland at 40-36 and Houston at 36-41, so the Guardians arrive with the better season record even though they were outscored badly in the first game of the series.[3] That combination usually keeps a low-probability price from being purely about standings; it reflects the gap between overall form and the immediate evidence from the most recent meeting.[1][3]

What matters next is whether Cleveland can reset quickly and whether Houston’s current run continues into the scheduled rematch. The key dependency is the announced game status and line-up news before first pitch, because the market stays open if the game is postponed and only resolves once it is completed.[3] With no confirmed injury or bullpen update in the results provided, the practical trading focus is on pre-game line-ups and any late change in starting pitcher availability, which could matter more here than the season record alone.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Cleveland Guardians vs. Houston Astros across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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 Sport Prediction, 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.

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.

What does it cost to trade on Sport Prediction?

Zero. Sport Prediction 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.