Philadelphia Phillies vs Seattle Mariners Prediction & Picks - MLB

USA - MLB

Philadelphia Phillies
8/19/25 18:45
Seattle Mariners

Prediction:

 

Phillies -1.5

+110
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 by Travis Pulver | in MLB Picks

The Seattle Mariners will try to end their three-game losing streak today when they take on the Phillies at Citizens Bank Park in Philadelphia. First pitch for this interleague matchup is scheduled for 6:45 p.m. EST.

Seattle came into the series having lost their last two vs. the Mets and four of their last five. They were never really in yesterday's game vs. the Phillies, falling behind by seven before getting on the board with four in the top of the seventh. But Philadelphia answered with four in the bottom half of the inning. Down 12-4 going into the top of the ninth, the Mariners made a valiant attempt to get back in the game, but only added three to make the final 12-7. Bryce Miller is set to come off the IL today to start for the Mariners. Miller is 2-5 in ten starts with a 5.73 ERA, 1.54 WHIP, and .278 OBA. He’s gone 1-3 in five road starts with a 6.38 ERA and .309 OBA. Philadelphia is expected to give the ball to Cristopher Sanchez to start the day. Sanchez is 11-4 in 24 starts with a 2.45 ERA, 1.09 WHIP, and .227 OBA. In ten home starts, he’s gone 5-0 with a 2.33 ERA and .202 OBA.

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Philadelphia Phillies vs Seattle Mariners Form

Table

Teams Pts P W L
2 Philadelphia Phillies
0.593 162 96 66
8 Seattle Mariners
0.556 162 90 72

Philadelphia Phillies and Seattle Mariners Latest Matches

Philadelphia Phillies
Philadelphia Phillies Latest matches
L L W L W W
Victories

3/6 (50%)

Defeats

3/6 (50%)

Aug 18, 2025 - MLB

Philadelphia Phillies
12 :  7
Seattle Mariners

Aug 17, 2025 - MLB

Washington Nationals
9 :  11
Philadelphia Phillies

Aug 16, 2025 - MLB

Washington Nationals
2 :  0
Philadelphia Phillies

Aug 15, 2025 - MLB

Washington Nationals
2 :  6
Philadelphia Phillies

Aug 14, 2025 - MLB

Washington Nationals
3 :  2
Philadelphia Phillies

Aug 13, 2025 - MLB

Cincinnati Reds
8 :  0
Philadelphia Phillies
L W W W L W
Victories

4/6 (67%)

Defeats

2/6 (33%)

Aug 18, 2025 - MLB

Philadelphia Phillies
12 :  7
Seattle Mariners

Aug 6, 2025 - MLB

Philadelphia Phillies
1 :  5
Baltimore Orioles

Aug 5, 2025 - MLB

Philadelphia Phillies
5 :  0
Baltimore Orioles

Aug 4, 2025 - MLB

Philadelphia Phillies
13 :  3
Baltimore Orioles

Aug 3, 2025 - MLB

Philadelphia Phillies
2 :  0
Detroit Tigers

Aug 2, 2025 - MLB

Philadelphia Phillies
5 :  7
Detroit Tigers
L L L W L W
Victories

2/6 (33%)

Defeats

4/6 (67%)

Aug 17, 2025 - MLB

Washington Nationals
9 :  11
Philadelphia Phillies

Aug 16, 2025 - MLB

Washington Nationals
2 :  0
Philadelphia Phillies

Aug 15, 2025 - MLB

Washington Nationals
2 :  6
Philadelphia Phillies

Aug 14, 2025 - MLB

Washington Nationals
3 :  2
Philadelphia Phillies

Aug 13, 2025 - MLB

Cincinnati Reds
8 :  0
Philadelphia Phillies

Aug 12, 2025 - MLB

Cincinnati Reds
6 :  1
Philadelphia Phillies
Seattle Mariners
Seattle Mariners Latest matches
L L W L L L
Victories

1/6 (17%)

Defeats

5/6 (83%)

Aug 18, 2025 - MLB

Philadelphia Phillies
12 :  7
Seattle Mariners

Aug 17, 2025 - MLB

New York Mets
7 :  3
Seattle Mariners

Aug 16, 2025 - MLB

New York Mets
3 :  1
Seattle Mariners

Aug 15, 2025 - MLB

New York Mets
9 :  11
Seattle Mariners

Aug 14, 2025 - MLB

Baltimore Orioles
5 :  3
Seattle Mariners

Aug 13, 2025 - MLB

Baltimore Orioles
4 :  3
Seattle Mariners
W W W W W W
Victories

6/6 (100%)

Defeats

0/6 (0%)

Aug 10, 2025 - MLB

Seattle Mariners
6 :  3
Tampa Bay Rays

Aug 9, 2025 - MLB

Seattle Mariners
7 :  4
Tampa Bay Rays

Aug 8, 2025 - MLB

Seattle Mariners
3 :  2
Tampa Bay Rays

Aug 7, 2025 - MLB

Seattle Mariners
4 :  3
Chicago White Sox

Aug 6, 2025 - MLB

Seattle Mariners
8 :  6
Chicago White Sox

Aug 5, 2025 - MLB

Seattle Mariners
8 :  3
Chicago White Sox
L L W L L L
Victories

1/6 (17%)

Defeats

5/6 (83%)

Aug 18, 2025 - MLB

Philadelphia Phillies
12 :  7
Seattle Mariners

Aug 17, 2025 - MLB

New York Mets
7 :  3
Seattle Mariners

Aug 16, 2025 - MLB

New York Mets
3 :  1
Seattle Mariners

Aug 15, 2025 - MLB

New York Mets
9 :  11
Seattle Mariners

Aug 14, 2025 - MLB

Baltimore Orioles
5 :  3
Seattle Mariners

Aug 13, 2025 - MLB

Baltimore Orioles
4 :  3
Seattle Mariners

Philadelphia Phillies against Seattle Mariners : Head to Head (H2H)

Philadelphia Phillies

50 %

Seattle Mariners

50 %

Aug 18, 2025 - MLB

Philadelphia Phillies
12 :  7
Seattle Mariners

Aug 4, 2024 - MLB

Seattle Mariners
0 :  6
Philadelphia Phillies

Aug 3, 2024 - MLB

Seattle Mariners
6 :  5
Philadelphia Phillies

Aug 2, 2024 - MLB

Seattle Mariners
10 :  2
Philadelphia Phillies

Philadelphia Phillies - Seattle Mariners Key Points

  1. The Mariners lead the all-time series vs. the Phillies 14-12.
  2. Both teams have played well since the All-Star break, with Philadelphia going 17-12 and the Mariners 17-13.
  3. Seattle is 31-33 on the road while the Phillies are 38-21 at home.
  4. Betting Public: 90% of runline tickets and 94% of the handle are on the Phillies.
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Our Philadelphia Phillies vs Seattle Mariners Prediction

Both teams have played well (overall) since the break, but the Phillies appear to still be on the rise while the Mariners may be flaming out. Not only have they won three of their last four, but the lineup is in a groove, scoring 23 runs across their last two games. Miller, on his best day, would be out of his league, but coming off the IL? Seattle fans should keep expectations low. As for Sanchez, he could easily shut the Mariners down today.

Our Phillies vs. Mariners: Philadelphia -1.5

Prediction:

 

Phillies -1.5

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Philadelphia Phillies vs Seattle Mariners Picks