Mariners vs Mets Prediction 8/15/2025 Today’s MLB Picks

In this article we will formulate a Mariners vs Mets prediction for this MLB game on Friday, August 15th at Citi Field in New York. Let’s take a look at the prediction for this MLB matchup. 

Seattle Mariners Betting Preview

The Seattle Mariners are 67-55 this year after they lost two out of three against Baltimore by scores of 1-0, 3-4, and 3-5. In their game three loss, Seattle allowed the first five runs in the game and never recovered in the loss. The Mariners recorded eight hits and they committed one error in the game, while they were led by Rodriguez, who went 1-3 with one home run and two RBIs in the loss. Seattle started Evans, who allowed three hits and two earned runs over 4.0 innings for the loss, while Vargas allowed two earned runs in relief. 

Prior to that series, the Mariners swept the Rays in three games and also swept the White Sox in three games. Seattle has won eight of their last ten games and they are currently second in the AL West standings. The Seattle pitching staff has a 3.78 ERA with a 1.23 WHIP and a .238 opponent batting average, while the offense has scored 554 runs with a .243 batting average and a .319 on base percentage this season. Cal Raleigh has led Seattle with 45 home runs and 98 RBIs, while Julio Rodriguez has added 24 home runs and 67 RBIs this year. The projected starting pitcher for Seattle is Luis Castillo, who is 8-6 with a 3.19 ERA and a 1.19 WHIP over 138.1 innings pitched this year. 

New York Mets Betting Preview

The New York Mets are 64-57 this season after they lost two out of three against Atlanta by scores of 13-5, 6-11, and 3-4. In their game three loss, New York led 3-2 in the sixth inning, but they allowed two runs in the eighth in the defeat. The Mets recorded six hits in the game and they were led by Lindor, Nimmo, and Alonso, who all had one RBI in the loss. New York started Senga, who allowed five hits and two earned runs over 5.2 innings, while Helsley allowed two earned runs in relief for the loss. 

Prior to that series, the Mets lost all three against the Brewers and all three against the Guardians. New York has lost nine of their last ten games and they are currently second in the NL East standings. The New York pitching staff has a 3.75 ERA with a 1.31 WHIP and a .240 opponent batting average, while the offense has scored 535 runs with a .241 batting average and a .320 on base percentage this season. Pete Alonso has led New York with 28 home runs and 99 RBIs, while Juan Soto has added 29 home runs and 69 RBIs this year. The projected starting pitcher for New York is Sean Manaea, who is 1-1 with a 4.33 ERA and a 1.11 WHIP over 27.0 innings pitched this season. 

Why the Mariners will beat the Mets

• The Mets have lost each of their last six games as favorites after playing the previous day.
• The Mariners have won each of their last four games as underdogs after playing the previous day.
• The Mets have failed to cover the run line in each of their last 10 games as favorites against American League opponents following a home loss.
• The Mariners have covered the run line in seven of their last eight road games against National League opponents that held a winning record.
• The Mets have trailed after 5 innings in three of their last four games against AL West opponents that held a winning record.
• The Mets have trailed after 3 innings in three of their last four night games against AL West opponents that held a winning record.

Total Runs Facts

• Each of the Mariners’ last seven road games have gone UNDER the total runs line.
• Seven of the Mets’ last nine home games against AL West opponents have gone OVER the total runs line.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in 10 of the Mets’ last 11 games against AL West opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in each of the Mariners’ last five games against National League opponents.

New York Mets Player Prop Facts

• Starling Marte has recorded a Double in five of his last six appearances with his team as a home favorite against the Mariners.
• Juan Soto has hit a home run in three of the Mets’ last four games against opponents that held a winning record.
• Starling Marte has recorded at least one hit in 25 of his last 26 appearances with his team as a home favorite against AL West opponents.
• Sean Manaea has recorded five or more strikeouts in seven of his last eight appearances at Citi Field.

Seattle Mariners Player Prop Facts

• Julio Rodriguez has hit a home run in each of the Mariners’ last four games as underdogs.
• Julio Rodriguez has recorded at least one hit in each of the Mariners’ last 10 road games against NL opponents.
• Luis Castillo has recorded six or more strikeouts in 11 of his last 12 appearances against NL opponents that held a winning record.
• Luis Castillo has recorded a win in four of his last five appearances against NL East opponents.
• Randy Arozarena has recorded at least one Double in each of the Mariners’ last three road games against NL opponents that held a winning record.

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Mariners vs Mets Prediction 

New York limps into this series after losing nine of their last ten games and they have had some major issues with their pitching staff recently. The Mets are 39-23 at home this year, while the Mariners are 30-30 on the road. Seattle did just lose two out of three against Baltimore and they are starting Castillo, who has allowed two earned runs or fewer in four of his last five starts. The Mets are going with Manaea, who has allowed nine earned runs and 13 hits in his last two starts. Take the Mariners on the road here.