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Miami Marlins vs Houston Astros Predictions

July 21 08:10 PM (Start in 17 Hours)
MIAM Daikin Park

Marlins vs. Astros Matchup Overview

The Miami Marlins visit the Houston Astros at Daikin Park on July 21st, 2026, for an 8:10 PM showdown. Miami holds a record of 52-48, while Houston sits at 47-54. For those looking to place bets, the current moneyline is +111 for the Marlins and -132 for the Astros, with an over-under set at 9.0 runs. The Edge AI sports betting tool can help you find the best bets for this matchup. Key players to watch include Otto Lopez for the Marlins, who boasts a .335 batting average and 9 home runs. Xavier Edwards is also contributing with a .299 average and 37 RBIs. On the Astros’ side, Yordan Alvarez is a standout with a .319 average and 31 home runs. Christian Walker is listed as questionable due to lower back stiffness, which could impact Houston’s lineup. In their recent matchups, the Astros have won two of the last three meetings against the Marlins, adding another layer of intrigue to this game.

Matchup Overview

  • Teams: Miami Marlins vs Houston Astros
  • Date: Tuesday, July 21, 2026
  • Time: 8:10 PM
  • Venue: Daikin Park

Current Betting Odds

  • Spread: Marlins -1.5 (-192) (+1.5 (-182 BetMGM Sportsbook)), Astros -1.5 (+157) (-1.5 (+160 ))
  • Total (Over/Under): 9.0 (-106/-117) (Over 8.5 (-125 Hard Rock), Under 9.0 (-115 BetMGM Sportsbook))
  • Moneyline Odds: Marlins +111 (+116 (BetMGM Sportsbook)), Astros -132 (-130 (Hard Rock))

Edge AI Win Probabilities

After 1,000 simulations, our model gives the Marlins a win probability of 45%, while the Astros have a win probability of 55%

The Marlins and Astros have faced off infrequently, but when they do, the Astros typically leverage their offensive depth against the Marlins’ pitching. Historically, Houston’s home field advantage at Minute Maid Park plays a significant role, as the dimensions favor power hitters. Betting trends suggest that when these teams meet, the Astros’ consistent offensive approach often tilts the odds in their favor.

Projected Final Score

Our Edge AI predicts a final score of Astros 5-4 Marlins with a confidence score of 65%. These projections are based on 1,000 simulations and hundreds of data points, ensuring you have the most accurate predictions to inform your betting strategy.

When the Marlins face the Astros, you’re looking at a classic clash of styles. Miami often relies on speed and pitching finesse, while Houston leans heavily on their offensive depth and power. Historically, the Astros have held the edge in head-to-head matchups, especially at home where Minute Maid Park’s dimensions favor their hitters, making it a tough spot for Miami to steal wins.

Miami Marlins vs Houston Astros Moneyline

The Marlins are looking to capitalize on their recent form as they take on the Astros at Daikin Park. With Miami’s lineup led by Otto Lopez and Houston’s Yordan Alvarez, this matchup presents an interesting dynamic for moneyline bettors, especially with the Astros facing injury concerns.

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Miami Marlins vs Houston Astros Run Line

The Miami Marlins, with a +111 moneyline, face the Houston Astros, who are slightly favored at -132. While the Astros have home field advantage, the Marlins have shown they can keep games tight, making the run line an interesting angle. Both teams’ recent performances suggest this matchup could hinge on key offensive outputs, particularly from Yordan Alvarez and Otto Lopez.

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Miami Marlins vs Houston Astros Over/Under

The Marlins and Astros have averaged 8.5 runs per game in their last five matchups, indicating solid offensive potential. However, the effectiveness of Houston’s pitching staff, especially with Christian Walker’s status uncertain, could shift the scoring landscape. Monitoring the starting pitchers’ form will be key to understanding the total runs in this game.

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52-49
All
48-54
31-20
Home
24-27
21-29
Away
24-27
33-22
as Fav
22-30
19-27
as Dog
26-24
49-52
ATS
49-53
23-28
ATS Home
23-28
26-24
ATS Away
26-25
53-45
O/U
53-42
22-29
O/U Home
28-21
31-16
O/U Away
25-21
RESULT
LOSE 5-8
DATE
07/20
SPREAD
+1.5
O/U
o8.5
RESULT
LOSE 1-3
DATE
07/19
SPREAD
+1.5
O/U
u8.0
RESULT
LOSE 6-8
DATE
07/18
SPREAD
โ€”
O/U
o8.0
RESULT
LOSE 1-2
DATE
07/17
SPREAD
+1.5
O/U
u8.0
RESULT
LOSE 5-2
DATE
07/12
SPREAD
+1.5
O/U
u8.0
RESULT
WIN 11-5
DATE
04/30
SPREAD
โ€”
O/U
โ€”
RESULT
WIN 5-8
DATE
07/20
SPREAD
-1.5
O/U
o8.5
RESULT
LOSE 5-2
DATE
07/19
SPREAD
โ€”
O/U
โ€”
RESULT
LOSE 4-2
DATE
07/18
SPREAD
โ€”
O/U
u8.5
RESULT
LOSE 3-2
DATE
07/17
SPREAD
+1.5
O/U
u8.5
WHO WON
Astros logo HOU
RESULT
5-8
DATE
07/20
WHO WON
Marlins logo MIA
RESULT
4-6
DATE
08/06
WHO WON
Astros logo HOU
RESULT
7-3
DATE
08/05
WHO WON
Astros logo HOU
RESULT
8-2
DATE
08/04
WHO WON
Astros logo HOU
RESULT
3-6
DATE
07/11

BOX SCORE: MLB TEAM STATS & PLAYER STATS

0
At Bats
0
0
Runs
0
0
Hits
0
0
Walks
0
0
Strikeouts
0
0.326
On Base Percentage
0.314
0.408
Slugging Percentage
0.409
4.01
Earned Run Average
4.77
0
Earned Runs
0
0
Home Runs
0
0
Walks
0
0
Strikeouts
0
0
Strikeouts Per 9 Innings
0
1.25
Walks Plus Hits Per Inning Pitched
1.40
Batters
AVG
HR
RBI
H
0.335
9
46
130
0.299
6
37
109
0.196
5
25
65
0.286
13
58
88
0.229
12
42
64
0.268
3
34
64
0.239
12
50
52
0.237
13
36
51
0.239
7
24
39
0.248
5
10
25
0.276
7
16
24
0.182
0
0
2
Starting pitcher
W-L
ERA
WHIP
K
2-4
3.48
1.39
56
Pitchers
W-L
ERA
WHIP
K
10-5
3.89
1.22
107
9-1
2.68
1.14
121
5-7
3.54
1.11
104
2-4
3.48
1.39
56
1-1
3.53
1.10
57
1-1
2.91
0.99
51
4-5
5.01
1.62
41
6-2
2.48
0.75
30
3-4
7.42
1.52
41
0-2
5.02
1.47
25
2-0
4.91
1.36
24
0-0
3.46
1.39
14
0-0
6.00
1.33
1
0-0
4.50
1.50
2
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
full roster
Batters
AVG
HR
RBI
H
0.234
20
58
85
0.319
31
73
115
0.257
12
50
88
0.210
12
34
70
0.235
12
28
70
0.197
7
22
41
0.217
5
22
38
0.241
6
23
42
0.206
3
11
28
0.228
3
11
26
0.216
1
12
22
0.239
1
10
22
0.273
1
4
9
Starting pitcher
W-L
ERA
WHIP
K
5-4
6.06
1.50
63
Pitchers
W-L
ERA
WHIP
K
4-9
5.99
1.55
75
8-5
3.03
1.11
91
7-5
4.35
1.31
87
4-2
3.63
1.26
63
5-4
6.06
1.50
63
2-1
2.22
0.82
50
0-3
4.34
1.18
42
2-3
3.40
1.31
35
1-1
4.05
1.45
43
2-3
5.63
1.63
40
1-0
3.60
1.40
16
3-1
1.10
0.86
28
0-0
0.00
0.50
7
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0
0-0
0.00
0.00
0

INJURY REPORT

NAME
POS
STATUS
INJURY
NOTES
POS
1B
STATUS
Questionable
INJURY
Back
Notes
Walker is dealing with stiffness in his lower back and is uncertain to take the field for the Astros.
POS
2B
STATUS
Questionable
INJURY
Finger
Notes
Delgado is dealing with a dislocated right pinkie finger and is uncertain to take the field for the Astros.
full roster and injuries