Houston Astros vs Seattle Mariners Prediction & Picks - MLB

USA - MLB

Houston Astros
5/12/26 20:10
Seattle Mariners

Prediction:

 

Over 8.5

-120
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 by Carlos Zabala | in MLB Picks

The Mariners, with a 20-22 record, were favored to lead the AL West in preseason betting odds, but now it looks like they won't have it so easy. The Astros, with a 16-26 record, meanwhile, look unrecognizable at the bottom of the division. They played each other on Tuesday at Daikin Park, and Seattle won 3-1.

Julio Rodríguez hit a towering home run of over 400 feet; Arozarena added a pair of hits. Meanwhile, Cal Raleigh is a concern, going 0-for-4. The catcher, who finished second in the MVP voting, is in a terrible slump, going 0-for-36 since April 27, and his no-hitter is the longest in all of MLB.

Bryan Woo, who has been less dominant than last season and has a 4.02 ERA, will start Wednesday's game. Tatsuya Imai will start for the Astros. He has a 7.27 ERA. Due to "arm fatigue," he made a rehab start in the minor leagues. He returned to the rotation but will likely throw a pitch limit on Tuesday.

Houston Astros vs Seattle Mariners Form

Table

Teams Pts P W L
13 Seattle Mariners
0.5 84 42 42
18 Houston Astros
0.482 85 41 44

Houston Astros and Seattle Mariners Latest Matches

Houston Astros
Houston Astros Latest matches
W L W L L L
Victories

2/6 (33%)

Defeats

4/6 (67%)

May 11, 2026 - MLB

Houston Astros
1 :  3
Seattle Mariners

May 10, 2026 - MLB

Cincinnati Reds
5 :  0
Houston Astros

May 9, 2026 - MLB

Cincinnati Reds
3 :  1
Houston Astros

May 8, 2026 - MLB

Cincinnati Reds
0 :  10
Houston Astros

May 6, 2026 - MLB

Houston Astros
2 :  12
Los Angeles Dodgers

May 5, 2026 - MLB

Houston Astros
2 :  1
Los Angeles Dodgers
L W L W L L
Victories

2/6 (33%)

Defeats

4/6 (67%)

May 11, 2026 - MLB

Houston Astros
1 :  3
Seattle Mariners

May 6, 2026 - MLB

Houston Astros
2 :  12
Los Angeles Dodgers

May 5, 2026 - MLB

Houston Astros
2 :  1
Los Angeles Dodgers

May 4, 2026 - MLB

Houston Astros
3 :  8
Los Angeles Dodgers

Apr 26, 2026 - MLB

Houston Astros
7 :  4
New York Yankees

Apr 25, 2026 - MLB

Houston Astros
3 :  8
New York Yankees
L W W W L L
Victories

3/6 (50%)

Defeats

3/6 (50%)

May 10, 2026 - MLB

Cincinnati Reds
5 :  0
Houston Astros

May 9, 2026 - MLB

Cincinnati Reds
3 :  1
Houston Astros

May 8, 2026 - MLB

Cincinnati Reds
0 :  10
Houston Astros

May 3, 2026 - MLB

Boston Red Sox
1 :  3
Houston Astros

May 2, 2026 - MLB

Boston Red Sox
3 :  6
Houston Astros

May 1, 2026 - MLB

Boston Red Sox
3 :  1
Houston Astros
Seattle Mariners
Seattle Mariners Latest matches
L W W L L W
Victories

3/6 (50%)

Defeats

3/6 (50%)

May 11, 2026 - MLB

Houston Astros
1 :  3
Seattle Mariners

May 10, 2026 - MLB

Chicago White Sox
2 :  1
Seattle Mariners

May 9, 2026 - MLB

Chicago White Sox
6 :  1
Seattle Mariners

May 8, 2026 - MLB

Chicago White Sox
8 :  12
Seattle Mariners

May 6, 2026 - MLB

Seattle Mariners
3 :  1
Atlanta Braves

May 5, 2026 - MLB

Seattle Mariners
2 :  3
Atlanta Braves
L L L W L W
Victories

2/6 (33%)

Defeats

4/6 (67%)

May 6, 2026 - MLB

Seattle Mariners
3 :  1
Atlanta Braves

May 5, 2026 - MLB

Seattle Mariners
2 :  3
Atlanta Braves

May 4, 2026 - MLB

Seattle Mariners
5 :  4
Atlanta Braves

May 3, 2026 - MLB

Seattle Mariners
1 :  4
Kansas City Royals

May 2, 2026 - MLB

Seattle Mariners
2 :  3
Kansas City Royals

May 1, 2026 - MLB

Seattle Mariners
6 :  7
Kansas City Royals
W W W L L W
Victories

4/6 (67%)

Defeats

2/6 (33%)

May 11, 2026 - MLB

Houston Astros
1 :  3
Seattle Mariners

May 10, 2026 - MLB

Chicago White Sox
2 :  1
Seattle Mariners

May 9, 2026 - MLB

Chicago White Sox
6 :  1
Seattle Mariners

May 8, 2026 - MLB

Chicago White Sox
8 :  12
Seattle Mariners

Apr 29, 2026 - MLB

Minnesota Twins
3 :  5
Seattle Mariners

Apr 28, 2026 - MLB

Minnesota Twins
1 :  7
Seattle Mariners

Houston Astros against Seattle Mariners : Head to Head (H2H)

Houston Astros

0 %

Seattle Mariners

100 %

May 11, 2026 - MLB

Houston Astros
1 :  3
Seattle Mariners

Apr 13, 2026 - MLB

Seattle Mariners
6 :  2
Houston Astros

Apr 12, 2026 - MLB

Seattle Mariners
6 :  1
Houston Astros

Apr 11, 2026 - MLB

Seattle Mariners
8 :  7
Houston Astros

Apr 10, 2026 - MLB

Seattle Mariners
9 :  6
Houston Astros

Sep 21, 2025 - MLB

Houston Astros
3 :  7
Seattle Mariners

Houston Astros - Seattle Mariners Key Points

  1. Collective ERA of the Astros' pitching staff, but across all of MLB
  2. 9-11 Astros home record this season.
  3. Astros lost their last three games
  4. 26-15 Astros O/U record this season

Our Houston Astros vs Seattle Mariners Prediction

The Astros have made the playoffs in 8 of the last 9 seasons and have had other slow starts from which they have recovered, and Joe Espada is saying this is a crucial week for them to start turning things around.

Both the Mariners and Astros, in terms of betting, are now listed as two of the least recommended teams to bet on, but it is a fact that the Astros are consistently producing game totals of OVERs because of their pitching.

Our prediction for Astros vs Mariers is: Over 8.5 runs.

Prediction:

 

Over 8.5

-120
$200 offered for betting!

All tips are fully researched and given in good faith, but profits cannot be guaranteed.

Houston Astros vs Seattle Mariners Picks