Miami Marlins (52-48) vs. Houston Astros (47-54) July 20, 2026 8:10 pm EDT The Line: Houston Astros -132 / Miami Marlins 110; Over/Under: 8.5 (Get latest betting odds)
In this article, we will formulate a Marlins vs Astros Prediction for this MLB matchup on Monday, July 20 th in the opening game of this series. Let’s take a look at the prediction for this MLB matchup.
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.
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.
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.