MLB Prop Bets: Houston Astros vs Miami Marlins (July 20, 2026)
The Miami Marlins (52-48) face the Houston Astros (47-54) at Daikin Park on Monday at 8:10pm (ET). Let's take a look at the MLB Prop Bets for the matchup. Janson Junk is the probable pitcher for the Marlins, while Ronel Blanco is the probable pitcher for the Astros. The Astros are favored to win at -136, while the Marlins are at +113. The total runs line is set at 8.5, with OVER at -115 and UNDER at -105.
- The Marlins (-179) have a 51-49 Run Line record this season, while the Astros (+148) hold a record of 49-52.
- The Marlins have a 52-46-2 O/U record this season (meaning 52 games have gone over the total runs line, 46 have gone under and two have resulted in a push). The Astros have a 52-44-5 O/U record.
Scoring Insights
- The Marlins are averaging 4.5 runs per game this season (15th in the league). Comparatively, the Astros are averaging 4.5 (13th).
- In the field, the Marlins are allowing 4.3 runs per game this season (9th in the league), while the Astros are allowing an average of 5.0 runs (25th).
Let's take a look at how these teams perform in some other key statistical areas.
Batting Insights:
Batting Average
- Looking at their batting averages this season, the Marlins are at .252 (ranking 7th in the Major leagues), while the Astros are batting .241 (18th).
Home Runs
- In terms of total home runs this season, the Astros have hit 134 (3rd in the Major Leagues). Meanwhile, the Marlins have managed 101 (T23rd).
Runs Batted In
- Finally, looking at their runs batted in, the Marlins have recorded 430 RBIs to rank 14th in the MLB this season. Comparatively, the Astros have recorded 434 RBIs to rank 12th.
Pitching Insights:
Earned Run Average
- The Astros have an earned run average of 4.75 this season (26th in the Majors), while The Marlins have an ERA of 4.01 (10th).
Strikeouts
- Turning our attention to total strikeouts, the Marlins have recorded 850 this season, ranking 12th in the MLB. Meanwhile, the Astros rank 7th for total strikeouts, recording 882.
Opponent Batting Average
- Opponents are batting an average of .240 against the Astros this season (16th in the Major Leagues). Comparatively, the Marlins' opponents are at .229 (4th).
First Innings Moneyline
- Here are their first innings moneyline records in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Marlins | 21-21-58 | 10-9-32 | 11-12-26 | 10-6-34 | 11-15-24 | 0-0-0 | 1-1-8 |
| Astros | 31-26-44 | 17-12-21 | 14-14-23 | 10-10-16 | 21-16-28 | 0-0-0 | 2-2-6 |
Lead After Three Innings
The Marlins are +105 to lead after three innings, while the Astros are -135.
- Here are their records after the first three innings in 2026.
| Total | Home | Road | Favorite | Underdog | Neutral | Last 10 | |
|---|---|---|---|---|---|---|---|
| Marlins | 40-35-25 | 21-14-16 | 19-21-9 | 21-12-17 | 19-23-8 | 0-0-0 | 6-1-3 |
| Astros | 33-43-25 | 18-20-12 | 15-23-13 | 11-18-7 | 22-25-18 | 0-0-0 | 2-5-3 |
NRFI/YRFI
The NRFI market is paying -110 and the YRFI is paying -120.
- The NRFI is 52-48 in Marlins games this season. The Astros have a 41-60 NRFI record.
Last Time They Met
The Marlins recorded a 6-4 victory over the Astros at LoanDepot Park when these teams last met on August 6, 2025. That result snapped the Astros' seven-game winning streak against the Marlins. Christian Walker was unstoppable in that matchup, hitting a home run, a single and recording 2 RBIs.
