Mariners vs Phillies Prediction 8/19/2025 Today’s MLB Picks

In this article we will formulate a Mariners vs Phillies prediction for this MLB game on Tuesday, August 19th at Citizens Bank Park in Philadelphia, Pennsylvania. Let’s take a look at the prediction for this MLB matchup. 

Seattle Mariners Betting Preview

The Seattle Mariners are 68-58 this year after they lost game one in this series by a score of 12-7. Seattle cut the deficit to 7-4 in the seventh inning, but immediately allowed four more runs to seal the loss. The Mariners recorded nine hits and they committed one error in the game, while they were led by Young, who went 1-4 with one home run and four RBIs in the loss. Seattle started Gilbert, who allowed nine hits and six earned runs over 2.0 innings for the loss, while Legumina allowed five earned runs in relief. 

Prior to this series, the Mariners lost two out of three against the Mets and two out of three against the Orioles. Seattle has lost five of their last six games and they are currently second in the AL West standings. The Seattle pitching staff has a 3.92 ERA with a 1.25 WHIP and a .242 opponent batting average, while the offense has scored 576 runs with a .244 batting average and a .320 on base percentage this season. Cal Raleigh has led Seattle with 47 home runs and 102 RBIs, while Julio Rodriguez has added 24 home runs and 69 RBIs this year. The projected starting pitcher for Seattle is Bryce Miller, who is 2-5 with a 5.73 ERA and a 1.54 WHIP over 48.2 innings pitched this year. 

Philadelphia Phillies Betting Preview

The Philadelphia Phillies are 72-53 this season after they won game one in this series by a score of 12-7 on Monday night. Philadelphia jumped out to a 7-0 lead and they added five more in the seventh/eighth inning to secure the victory. The Phillies recorded 21 hits in the game and they were led by Turner, who went 4-6 with one home run and five RBIs in the win. Philadelphia started Suarez, who allowed four hits and two earned runs over 6.2 innings for the win, while Hoffman allowed three earned runs in relief. 

Prior to this series, the Phillies split four games with the Nationals and lost two out of three against the Reds. Philadelphia has won three of their last four games and they are currently first in the NL East standings. The Philadelphia pitching staff has a 3.78 ERA with a 1.23 WHIP and a .244 opponent batting average, while the offense has scored 587 runs with a .255 batting average and a .325 on base percentage this season. Kyle Schwarber has led Philadelphia with 43 home runs and 103 RBIs, while Nick Castellanos has added 16 home runs and 61 RBIs this year. The projected starting pitcher for Philadelphia is Cristopher Sanchez, who is 11-4 with a 2.45 ERA and a 1.09 WHIP over 150.2 innings pitched this season. 

Why the Phillies will beat the Mariners

• The Phillies have won nine of their last 10 night games against American League opponents.
• The Mariners have lost five of their last six games after playing the previous day.
• The Phillies have covered the run line in each of their last nine Tuesday night games against American League opponents.
• The Mariners have failed to cover the run line in eight of their last nine games against National League opponents.
• The Mariners have trailed after 3 innings in each of their last three games against National League opponents that held a winning record.
• The Phillies have led after 5 innings in four of their last five games against American League opponents that held a winning record.

Why the Mariners will beat the Phillies

• The Mariners have won five of their last six games as underdogs after playing the previous day.
• The Phillies have lost three of their last four games as home favorites against AL West opponents following a home win.
• The Mariners have covered the run line in five of their last six games as underdogs.
• The Phillies have failed to cover the run line in six of their last eight home games against AL West opponents following a win.

Total Runs Facts

• Ten of the Mariners’ last 11 games against NL East opponents have gone OVER the total runs line.
• Five of the Phillies’ last six games as favorites against AL West opponents have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Phillies’ last six Tuesday night games against AL West opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in six of the Mariners’ last seven night games against National League opponents.

Philadelphia Phillies Player Prop Facts

• Bryce Harper has hit at least one home run in three of the Phillies’ last four games as home favorites against AL West opponents.
• J.T. Realmuto has recorded at least one hit in each of his last nine appearances with the Phillies as home favorites against AL West opponents.
• J.T. Realmuto has recorded a Double in four of his last five appearances against AL West opponents at Citizens Bank Park.

Seattle Mariners Player Prop Facts

• Mitch Garver has hit at least one home run in each of his last three appearances with the Mariners as underdogs against NL opponents.
• Bryce Miller has recorded six or more strikeouts in three of his last four appearances in night games against NL East teams that held a winning record.
• Julio Rodriguez has recorded at least one Double in four of the Mariners’ last five games as road underdogs against NL opponents.
• Victor Robles has recorded at least one hit in each of his last eight appearances.

Mariners vs Phillies Prediction 

Philadelphia was able to get another very high scoring win on Monday night and they have scored 23 runs in their last two games. The Phillies are 38-21 at home this year, while the Mariners are 31-33 on the road. Seattle has lost three games in a row and they are starting Miller, who is coming off of the IL, but was pretty bad in the four starts prior to getting injured. The Phillies are starting Sanchez, who has allowed one earned run or fewer in three of his last five outings. Take the over once again here, as the Phillies offense should have another big day.