In this article, we will formulate a Marlins vs Astros Prediction for this MLB matchup on Monday, July 20th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.
Houston Astros Preview
The Houston Astros have a 47-54 record this season and are sitting in the 3rd place of the AL West. They have a 23-27 home record and are coming off a 5-2 home win against the Orioles. They will face the White Sox and the Angels next.
The Houston Astros have a .241 batting average this season, .316 OBP and .410 Slugging percentage. Houston’s pitching staff has a 4.75 ERA and 1.40 WHIP. Yordan Alvarez is the team’s best hitter with a .319 batting average, leads the team in RBI with 73, and adds a team-high 31 home runs.
Ronel Blanco is the projected starting pitcher for the Houston Astros and he will make his season debut. Last season he had a 3-4 record, 4.10 ERA and 1.18 WHIP.
Miami Marlins Preview
The Miami Marlins have a 52-48 record this season and are sitting in the 3rd place of the NL East. They have a 21-28 away record and are coming off a 1-3 road loss against the Brewers. They will face the Padres and the Phillies next.
The Miami Marlins have a .252 batting average this season, .329 OBP and .409 Slugging percentage. Miami’s pitching staff has a 4.02 ERA and 1.25 WHIP. Otto Lopez is the team’s best hitter with a .335 batting average. Liam Hicks leads the team in RBI with 58, while Heriberto Hernandez adds a team-high 13 home runs.
Janson Junk (R) is the projected starting pitcher for the Miami Marlins, and he has a 4-5 record, 4.57 ERA and 1.31 WHIP.
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 Marlins have trailed after 3 innings in three of their last four games at Daikin Park.
- 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.
- 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 led after 3 innings in each of their last six games against AL West opponents.
- 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.
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).
Marlins vs Astros Prediction
The Astros are 7-1 in their last 8 meetings against the Marlins, having won their last four meetings in Houston.
In this Marlins vs Astros Prediction, the Astros are coming as -130 home favorites. Both teams have been struggling, having lost their last four and six games respectively and both offenses have been fallen off a cliff, averaging just 6 runs per game combined in their last 5 games. Junk is coming off back-to-back games with just one earned run and Blanco sits on a very good 3.45 ERA and 1.20 WHIP in his career, so I expect a low-scoring affair. Take the under 8.5 runs in this one.