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by Lou Aguila in MLB Picks
The Seattle Mariners will try to put the final nail in the coffin of the Seattle Mariners on Sunday as they go for a crucial series in Game 3 at Daikin Park.
The Mariners, 4-1 in their last five games against the Astros, are -143 road favorites against the Astros.
Current Form:
The Mariners (86-69) have extended their winning streak to three games as Cal Raleigh’s record-breaking 57th homer of the season ignited Seattle to a resounding 6-4 win over the Astros. Raleigh has surpassed Ken Griffey Jr. for the most home runs by a Mariner in a single season. Most of all, the Mariners’ victory on Sunday gave them a two-game lead over the Astros with 10 playing days left in the regular season.
The Astros (84-71) suffered their fourth loss in the last five meetings with the Mariners. After ending up scoreless in Game 1, Houston scored four runs in Game 2, courtesy of a Grand Slam in the seventh inning by Jeremy Pena. Unfortunately, it came after the Mariners had already established a 6-0 lead. The back-to-back losses put the Astros in danger of missing this year’s postseason as they are now tied with the Cleveland Guardians for the last wild card spot in the American League.
Pitchers Matchup:
Mariners RHP Logan Gilbert (5-6, 3.53 ERA) vs. Astros RHP Jason Alexander (4-1, 4.04 ERA).
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Seattle Mariners vs Houston Astros Form
Table
| Teams | % | P | W | L |
|---|---|---|---|---|
|
7
|
0.555 | 155 | 86 | 69 |
|
10
|
0.542 | 155 | 84 | 71 |
Seattle Mariners and Houston Astros Latest Matches
5/6 (83%)
1/6 (17%)
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6/6 (100%)
0/6 (0%)
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5/6 (83%)
1/6 (17%)
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3/6 (50%)
3/6 (50%)
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3/6 (50%)
3/6 (50%)
Sep 20, 2025 - MLB
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3/6 (50%)
3/6 (50%)
Sep 14, 2025 - MLB
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Seattle Mariners against Houston Astros : Head to Head (H2H)
67 %
33 %
Sep 20, 2025 - MLB
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Seattle Mariners - Houston Astros Key Points
- Houston is 7-13 SU in its last 20 games against an opponent in the American League West Division division.
- Houston is 0-5 SU in its last 5 games played on a Sunday.
- Seattle is 13-1 SU in its last 14 games.
- Seattle is 4-1 SU in its last 5 games against Houston.
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Our Seattle Mariners vs Houston Astros Prediction
Averaging 5.8 runs per game on a .275 BA while sporting a 3.57 ERA over their last five games, the Mariners have been a little bit too good for the Astros after two games in this series. Houston, who has averaged 4.5 runs per game and pitched to a 3.60 ERA, surrendered only one homer in Game 2 after allowing four in Game 1. However, the Astros just could not stop the Mariners from outscoring them in every turn.
Mariners starter Logan Gilbert, who sports a 2.54 ERA over his last five starts, is poised to have another strong start vs. the Astros after surrendering one earned run over 5.2 innings in a 4-3 win by the Mariners last April 7. Desperately needing a win to keep their postseason bid alive, the Astros unleash Jason Alexander, who is 5-0 with a 2.93 ERA in his last five mound appearances. Honestly, Alexander might have a slight edge in this duel because of his five-game win streak. However, the Mariners have proven on multiple occasions that they can beat the Astros no matter who is on the mound. They have beaten Houston when Hunter Brown was the starter twice, and also have done it against Ryan Gusto and Framber Vásquez. Alexander has been spectacular recently, but the Mariners have the momentum after the back-to-back wins.
Fearless Forecast: Mariners 8, Astros 3
Our betting prediction for the Seattle Mariners vs. the Houston Astros: the Mariners -1.5 Runs
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All tips are fully researched and given in good faith, but profits cannot be guaranteed.
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