Astros vs Marlins Prediction, Odds, Moneyline, Spread & Over/Under for Aug. 5

Odds updated as of 6:11 p.m.

Tuesday's slate in the MLB includes a matchup between the Miami Marlins and the Houston Astros.

We've got you covered, in terms of the most important information about this matchup before you take a look at the MLB odds and spreads on FanDuel Sportsbook.

Marlins vs Astros Game Info

• Miami Marlins (55-56) vs. Houston Astros (63-50)
• Date: Tuesday, August 5, 2025
• Time: 6:40 p.m. ET
• Venue: loanDepot park -- Miami, Florida
• Coverage: FDSFL and SCHN

Marlins vs Astros Odds & Moneyline

• All MLB odds, betting lines and prop bets are available on FanDuel Sportsbook.
• Moneyline: MIA: (-108) | HOU: (-108)
• Spread: MIA: +1.5 (-184) | HOU: -1.5 (+152)
• Total: 8.5 -- Over: (-102) | Under: (-120)

Marlins vs Astros Probable Starting Pitchers

Probable Pitchers: Cal Quantrill (Marlins) - 4-8, 4.79 ERA vs Steven Okert (Astros) - 1-2, 2.90 ERA

This contest's pitching matchup is set, as the Marlins will send Cal Quantrill (4-8) to the mound, while Steven Okert (1-2) will take the ball for the Astros. Quantrill's team is 13-7-0 against the spread this season in his starts. Quantrill's team lost his only start as a favorite this season. Last season Okert pitched in one game with a spread, which his team covered. Okert's team was the moneyline underdog only one time in a game he pitched a season ago, and won.

Marlins vs Astros Prediction & Pick

All MLB win probability predictions and picks are according to numberFire.
Prediction: Astros win (57.8%)

Marlins vs Astros Moneyline

• Miami is the favorite, -108 on the moneyline, while Houston is a -108 underdog on the road.

Marlins vs Astros Spread

Marlins vs Astros Over/Under

• Marlins versus Astros on Aug. 5 has an over/under of 8.5 runs, with the odds on the over -102 and the under set at -120.

Bet on Miami Marlins vs. Houston Astros on FanDuel today!

Marlins vs Astros Betting Trends

• The Marlins have been favorites in 13 games this season and have come away with the win five times (38.5%) in those contests.
• Miami has a record of 6-8 in contests when bookmakers favor them by -108 or more on the moneyline.
• The Marlins and their opponents have gone over in 49 of their 107 games with a total set by sportsbooks this season.
• The Marlins are 65-42-0 against the spread in their 107 games that had a posted line this season.
• The Astros have been the underdog on the moneyline 34 total times this season. They've finished 21-13 in those games.
• Houston has gone 21-13 when it has played as a moneyline underdog with odds of -108 or longer (61.8%).
• The Astros have had an over/under set by bookmakers 112 times, and have combined with opponents to go over the total in 47 of those games (47-61-4).
• The Astros have covered 50% of their games this season, going 56-56-0 ATS.

Marlins Player Leaders

• Kyle Stowers has 106 hits and an OBP of .372, both of which are best among Miami hitters this season. He has a .295 batting average and a slugging percentage of .571.
• Among all qualified batters in baseball, he ranks 14th in batting average, 18th in on-base percentage, and fifth in slugging.
• Stowers hopes to build on a two-game hitting streak in this matchup. In his last five games he is hitting .190 with two home runs and eight RBIs.
• Otto Lopez is hitting .247 with 14 doubles, 11 home runs and 35 walks, while slugging .379 with an on-base percentage of .319.
• His batting average ranks 108th among qualified players, his on-base percentage 97th, and his slugging percentage 127th.
• Agustin Ramirez is batting .242 with a .464 slugging percentage and 50 RBI this year.
• Xavier Edwards has an OPS of .716, fueled by an OBP of .357 and a team-best slugging percentage of .359 this season.
• Edwards enters this game on a two-game hitting streak. In his last five games he is batting .286 with a double, two walks and two RBIs.

Astros Player Leaders

• Jose Altuve has put up a team-high .453 slugging percentage. He's batting .279 with an on-base percentage of .340.
• He ranks 32nd in batting average, 60th in on-base percentage and 60th in slugging percentage among all qualified hitters in MLB.
• Altuve hopes to build on a three-game hitting streak in this matchup. In his last five games he is hitting .333 with a home run, a walk and three RBIs.
• Jeremy Pena paces his team with 107 hits and a .380 on-base percentage. He has a batting average of .324 while slugging .491.
• Including all qualified hitters, his batting average places him second, his on-base percentage ranks 10th, and he is 26th in slugging.
• Yainer Diaz is batting .255 with 16 doubles, a triple, 15 home runs and 15 walks.
• Jesus Sanchez is hitting .256 with 14 doubles, four triples, 10 home runs and 30 walks.

Marlins vs Astros Head to Head

• 8/4/2025: 8-2 HOU (Favorite: Marlins, Spread: -1.5, Total: 8.5, Favorite Moneyline: -130, Underdog Moneyline: +110)
• 7/11/2024: 6-3 HOU (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -180, Underdog Moneyline: +152)
• 7/10/2024: 9-1 HOU (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -240, Underdog Moneyline: +198)
• 7/9/2024: 4-3 HOU (Favorite: Astros, Spread: -1.5, Total: 8.5, Favorite Moneyline: -245, Underdog Moneyline: +200)
• 8/16/2023: 12-5 HOU (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -116, Underdog Moneyline: -102)
• 8/15/2023: 6-5 HOU (Favorite: Astros, Spread: -1.5, Total: 9, Favorite Moneyline: -124, Underdog Moneyline: +106)
• 8/14/2023: 5-1 MIA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -138, Underdog Moneyline: +118)
• 6/12/2022: 9-4 HOU (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -250, Underdog Moneyline: +205)
• 6/11/2022: 5-1 MIA (Favorite: Astros, Spread: -1.5, Total: 8, Favorite Moneyline: -310, Underdog Moneyline: +250)
• 6/10/2022: 7-4 MIA (Favorite: Astros, Spread: -1.5, Total: 7.5, Favorite Moneyline: -158, Underdog Moneyline: +134)

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