Miami Marlins vs Houston Astros Prediction 7/20/2026 Today’s MLB Picks

The Miami Marlins and the Houston Astros meet Monday in MLB action from Daikin Park. We will look at this from a betting perspective and determine the best bets for this game. Here’s a Miami Marlins vs. Houston Astros prediction.

Starting Pitching Matchup

The Miami Marlins will send out Janson Junk for the start here and Junk is 4-5 with a 4.57 ERA and 48 strikeouts this season. Ronel Blanco will start for the Astros and is making his 2026 season debut in this game.

Miami Marlins Recap

The Miami Marlins come into this game looking to bounce back from a 3-1 loss at the hands of the Brewers to sit at 52-48 this season. After this series, the Marlins will head home for a set against the San Diego Padres.

Marlins Lose 6 In A Row

Xavier Edwards has 109 hits with 13 doubles, 6 triples, 6 home runs and 37 RBIs while Otto Lopez has 130 hits with 27 doubles, 6 triples, 9 homers and 46 RBIs and Liam Hicks has added 88 hits with 9 doubles, 13 home runs and 58 RBIs. Connor Norby has 41 hits with 12 doubles, 4 home runs and 16 RBIs and Owen Caissie has 52 hits with 12 doubles, 12 homers and 50 RBIs. Jakob Marsee also has 65 hits with 11 doubles, 3 triples, 5 home runs and 25 RBIs this season. 

Houston Astros Recap

The Houston Astros come into this game looking to bounce back from their 5-2 loss at the hands of the Orioles last time out to sit at 47-54 this season. After this series, the Astros will head on the road for a series against the Chicago White Sox.

Astros Lose 4 Straight

Yordan Alvarez has 115 hits with 20 doubles, 31 home runs and 73 RBIs while Christian Walker has 85 hits with 19 doubles, 20 home runs and 58 RBIs on the year. Jose Altuve’s chipped in 70 hits with 14 doubles, 12 home runs and 28 RBIs and Isaac Paredes has 88 hits with 18 doubles, 12 home runs and 50 RBIs. Cam Smith also has 70 hits with 13 doubles, 12 home runs and 34 RBIs.

Miami Marlins @ Houston Astros Betting Trends: July 20, 2026

• Probable Starting Pitcher: Ronel Blanco      Record this season: –      ERA: –
• Home Record: –
• Last 5 against Marlins: 1-0

Why the Houston Astros will win

• The Marlins have lost each of their last six games.
• The Astros have won seven of their last eight games against the Marlins.
• The Astros have covered the run line in seven of their last eight night games against NL East opponents.
• The Marlins have failed to cover the run line in each of their last five games after playing the previous day.
• The Astros have won the first inning in four of their last five games as favorites against the Marlins.
• The Astros have led after 5 innings in each of their last six night games against the Marlins.
• The Marlins have trailed after 3 innings in three of their last four games at Daikin Park.

• Probable Starting Pitcher: Janson Junk      Record this season: 4-5      ERA: 4.57
• Road Record: 2-2
• Last 5 against Astros: 1-0

Why the Miami Marlins will win

• The Marlins have won each of their last eight games as underdogs against AL West opponents.
• The Astros have lost each of their last six games as favorites against National League opponents.
• The Marlins have covered the run line in each of their last eight road games against AL West opponents.
• The Astros have failed to cover the run line in each of their last eight games as favorites against National League opponents following a loss.
• The Marlins have won the first inning in four of their last five games as road underdogs against American League opponents.
• The Marlins have led after 5 innings in each of their last eight games against AL West opponents.
• The Marlins have led after 3 innings in each of their last six games against AL West opponents.

Total Runs Facts

• Seven of the last eight games between the Marlins and Astros have gone OVER the total runs line.
• Five of the Marlins’ last six games have gone UNDER the total runs line.
• There has been no run scored during the first inning in each of the Marlins’ last six night games.
• There has been at least one run scored in the first inning in nine of the Astros’ last 10 games as home favorites against National League opponents.

Houston Astros Player Prop Facts

• Yordan Alvarez has hit a home run in four of the Astros’ last five games as favorites against NL opponents.
• Ronel Blanco has recorded four or more strikeouts in each of his last seven appearances with the Astros as home favorites.
• Yainer Diaz has recorded at least one hit in each of his last nine appearances against NL East opponents.
• Ronel Blanco has recorded a win in three of his last four home appearances.
• Yordan Alvarez ranks 1st amongst qualified players for Slugging Percentage (.633) this season.

Miami Marlins Player Prop Facts

• Griffin Conine has hit a home run in four of the Marlins’ last five games as underdogs.
• Janson Junk has recorded a win in three of his last four road appearances against opponents that held a losing record.
• Janson Junk has recorded four or more strikeouts in six of his last seven road appearances.
• Otto Lopez has recorded at least one hit in each of the Marlins’ last 13 games against AL West opponents.
• Otto Lopez ranks 1st in the league in Hits (130) this season.

Matchup/League Facts

• The Astros rank 30th in the league for walks allowed this season (444).
• The Astros rank 30th in the league for walks allowed this season (444).
• The Marlins rank 1st in the league for triples this season (24).
• The Marlins rank 1st in the league for triples this season (24).

Miami Marlins vs. Houston Astros Prediction

I’m on the over in this one. I get the case to be made for either side in this game, but I think this is a game with a huge offensive edge when it comes to the starting pitching matchup. I think that the bats come out to play in this game and I think that this is going to be a bring your glove to the ballpark kind of game. Give me the over.

Chris Ruffolo's Pick: Over 9