Pronóstico: Miami Marlins vs. Houston Astros

Platform comparison

Market context

The Houston Astros have already secured an 8–5 victory over the Miami Marlins in the July 20 matchup at Daikin Park, with Jeremy Peña hitting a grand slam and Yordan Álvarez scoring twice to end a four-game losing streak [2][5]. Since the game is completed, the prediction market titled “Miami Marlins vs. Houston Astros” cannot resolve to “YES” for a Marlins win, making the 0% crowd-implied probability a factual reflection of the settled result rather than a forecast [2].

Historically, markets that remain open after a game’s completion but before official confirmation often retain non-zero probabilities until the governing body validates the final score; however, once the result is confirmed by MLB, the probability collapses to 0% for the losing side and 100% for the winner, as seen in prior MLB resolution cases where grand slams or multi-homer games decisively shifted outcomes [2][5]. In this instance, the Astros’ dominant performance and the official 8–5 scoreline eliminate any ambiguity, rendering the Marlins’ win condition impossible.

Traders should monitor the official MLB final statistics page for formal confirmation, though the AP report and ESPN live score already confirm the outcome [2][3]. No further announcements, injuries, or line-up changes can alter the result, as the game is finished and no make-up is required. The settlement window ending in 2026 simply reflects the platform’s standard delay for administrative closure, not uncertainty about the outcome [2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Miami Marlins vs. Houston Astros. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.