San Diego Padres vs Seattle Mariners Prediction & Picks - MLB

USA - MLB

San Diego Padres
8/26/25 21:40
Seattle Mariners

Prediction:

 

The Mariners will win

-115
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 by Lou Aguila in MLB Picks

Listed at -115, the Seattle Mariners will attempt to push their win streak against the San Diego Padres to six games in Game 2 of their series on Tuesday at T-Mobile Park.

The Mariners extended their head-to-head dominance over the Padres, capturing their fifth straight win over the No.2 team in the NL West behind a prolific scoring night from their offense. Seattle improved its slate to 71-61, trailing the 72-59 Houston Astros – the current pace-setters in the AL West - by 1.5 games with barely a month left in the regular season. Averaging 4.6 runs per game this season, the Mariners have already scored 20 runs in their last two games.

The Padres’ elite pitching has been nonexistent in their last two games. San Diego conceded nine runs to the Mariners in Game 1, roughly 24 hours after surrendering eight runs in a 2-8 loss to the Los Angeles Dodgers in their series finale. San Diego boasts a 3.59 ERA in their last five games, but that figure dipped over the last five games to 4.50 ERA following two consecutive bad nights on the bump.

San Diego Padres vs Seattle Mariners Form

Table

Teams % P W L
7
San Diego Padres
San Diego Padres
0.561 132 74 58
11
Seattle Mariners
Seattle Mariners
0.538 132 71 61

San Diego Padres and Seattle Mariners Latest Matches

San Diego Padres
San Diego Padres Latest matches
W W W W L L
Victories

4/6 (67%)

Defeats

2/6 (33%)

Aug 25, 2025 - MLB

San Diego Padres
6 :  9
Seattle Mariners

Aug 24, 2025 - MLB

Los Angeles Dodgers
8 :  2
San Diego Padres

Aug 23, 2025 - MLB

Los Angeles Dodgers
1 :  5
San Diego Padres

Aug 22, 2025 - MLB

Los Angeles Dodgers
1 :  2
San Diego Padres

Aug 21, 2025 - MLB

San Francisco Giants
4 :  8
San Diego Padres

Aug 20, 2025 - MLB

San Francisco Giants
1 :  8
San Diego Padres
W W W W W L
Victories

5/6 (83%)

Defeats

1/6 (17%)

Aug 24, 2025 - MLB

Los Angeles Dodgers
8 :  2
San Diego Padres

Aug 23, 2025 - MLB

Los Angeles Dodgers
1 :  5
San Diego Padres

Aug 22, 2025 - MLB

Los Angeles Dodgers
1 :  2
San Diego Padres

Aug 21, 2025 - MLB

San Francisco Giants
4 :  8
San Diego Padres

Aug 20, 2025 - MLB

San Francisco Giants
1 :  8
San Diego Padres

Aug 19, 2025 - MLB

San Francisco Giants
1 :  5
San Diego Padres
W W L L L L
Victories

2/6 (33%)

Defeats

4/6 (67%)

Aug 25, 2025 - MLB

San Diego Padres
6 :  9
Seattle Mariners

Aug 17, 2025 - MLB

San Diego Padres
4 :  5
Los Angeles Dodgers

Aug 16, 2025 - MLB

San Diego Padres
0 :  6
Los Angeles Dodgers

Aug 15, 2025 - MLB

San Diego Padres
2 :  3
Los Angeles Dodgers

Aug 13, 2025 - MLB

San Diego Padres
11 :  1
San Francisco Giants

Aug 12, 2025 - MLB

San Diego Padres
5 :  1
San Francisco Giants
Seattle Mariners
Seattle Mariners Latest matches
L L W W L W
Victories

3/6 (50%)

Defeats

3/6 (50%)

Aug 25, 2025 - MLB

San Diego Padres
6 :  9
Seattle Mariners

Aug 24, 2025 - MLB

Athletics
4 :  11
Seattle Mariners

Aug 23, 2025 - MLB

Athletics
2 :  1
Seattle Mariners

Aug 22, 2025 - MLB

Athletics
2 :  3
Seattle Mariners

Aug 20, 2025 - MLB

Seattle Mariners
2 :  11
Philadelphia Phillies

Aug 19, 2025 - MLB

Seattle Mariners
4 :  6
Philadelphia Phillies
W W W W L W
Victories

5/6 (83%)

Defeats

1/6 (17%)

Aug 25, 2025 - MLB

San Diego Padres
6 :  9
Seattle Mariners

Aug 24, 2025 - MLB

Athletics
4 :  11
Seattle Mariners

Aug 23, 2025 - MLB

Athletics
2 :  1
Seattle Mariners

Aug 22, 2025 - MLB

Athletics
2 :  3
Seattle Mariners

Aug 10, 2025 - MLB

Tampa Bay Rays
3 :  6
Seattle Mariners

Aug 9, 2025 - MLB

Tampa Bay Rays
4 :  7
Seattle Mariners
W L L L L L
Victories

1/6 (17%)

Defeats

5/6 (83%)

Aug 20, 2025 - MLB

Seattle Mariners
2 :  11
Philadelphia Phillies

Aug 19, 2025 - MLB

Seattle Mariners
4 :  6
Philadelphia Phillies

Aug 18, 2025 - MLB

Seattle Mariners
7 :  12
Philadelphia Phillies

Aug 17, 2025 - MLB

Seattle Mariners
3 :  7
New York Mets

Aug 16, 2025 - MLB

Seattle Mariners
1 :  3
New York Mets

Aug 15, 2025 - MLB

Seattle Mariners
11 :  9
New York Mets

San Diego Padres against Seattle Mariners : Head to Head (H2H)

San Diego Padres

33 %

Seattle Mariners

67 %

Aug 25, 2025 - MLB

San Diego Padres
6 :  9
Seattle Mariners

May 18, 2025 - MLB

Seattle Mariners
6 :  1
San Diego Padres

May 17, 2025 - MLB

Seattle Mariners
4 :  1
San Diego Padres

May 16, 2025 - MLB

Seattle Mariners
5 :  1
San Diego Padres

Mar 24, 2025 - MLB Spring Training

Seattle Mariners
7 :  7
San Diego Padres

Mar 15, 2025 - MLB Spring Training

San Diego Padres
8 :  3
Seattle Mariners

San Diego Padres - Seattle Mariners Key Points

  1. San Diego is 0-5 SU in its last 5 games against Seattle.
  2. San Diego is 1-4 SU in its last 5 games on the road.
  3. Seattle is 10-1 SU in its last 11 games at home.
  4. Seattle is 5-1 SU in its last 6 games when playing at home against San Diego.

Our San Diego Padres vs Seattle Mariners Prediction

It's safe to say the Mariners own the Padres. They have won the last five meetings against San Diego and nine of their last 10 clashes. Moreover, they won by at least two runs in all nine victories, underscoring the Mariners’ recent dominance over the Padres. Luis Castillo, the projected starter for the Mariners on Tuesday, is coming off a disappointing mound appearance against the Philadelphia Phillies on August 20. In this game, Castillo surrendered three earned runs and 10 hits over four innings in a 2-4 loss. Despite his shaky form as of late, Castillo should be fine as long as the Mariners’ offense continues to deliver the goods behind the plate.

Seattle averages 5.4 runs per game in its last five games and 6.33 runs per game in its last three meetings with the Padres. San Diego won in 4 of Dylan Cease’s last 5 starts. However, the Padres have struggled offensively against the Mariners in their past three meetings, averaging 2.67 runs per game.

I am taking the Mariners to win straight up at -115. Their head-to-head success over the Padres in the past five games, along with San Diego’s inconsistent pitching recently, make Seattle, 40-26 at home this season, a firm moneyline pick in this match.

Our betting prediction for the San Diego Padres vs. the Seattle Mariners: the Mariners will win.

Prediction:

 

The Mariners will win

-115
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San Diego Padres vs Seattle Mariners Picks