Tampa Bay Rays vs Seattle Mariners Prediction 8/9/2025 Today’s MLB Picks

In this article, we will formulate a Blue Jays vs Dodgers prediction for this MLB game on Saturday, August 9, at T-Mobile Park in Seattle, Washington. Let’s take a look at the prediction for this MLB matchup.

Tampa Bay Rays Betting Preview

The Tampa Bay Rays (57-60, 25-30 Away) snapped a four-series losing skid with a win over the Los Angeles Angels. The Rays did lose Game 1 of that series, but bounced back with back-to-back wins. The Rays had a 2-0 lead in the opening game of the series against the Mariners, but allowed three runs in the 8th inning and left empty-handed, losing 3-2. Brandon Lowe and Junior Caminero hit a solo homer apiece, while Drew Rasmussen pitched for 6.0 innings in a no-decision, allowing no runs on four hits with four strikeouts and no walks. Griffin Jax took the loss.

This season, the Rays average 4.50 runs per game (11th in the MLB) on a .252/.315/.399 triple-slash. When it comes to pitching, the Rays’ staff has a 3.86 ERA (14th) and 1.21 WHIP (4th). Junior Caminero leads the Rays with a .256 batting average, 31 home runs, and 77 RBI this season.

Joe Boyle will take the mound for the Rays on Saturday. The 25-year-old right-hander has a 1-1 record in three starts this year with a 2.30 ERA and 0.88 WHIP in 27.1 innings.

Seattle Mariners Betting Preview

The Seattle Mariners (64-53, 35-25 Home) defeated the Texas Rangers and swept the Chicago White Sox, and are now on a five-game winning streak following a Game 1 win over the Rays. Seattle was scoreless for seven innings, but Cal Raleigh hit a league-leading 43rd homer (a three-run homer) to give his team a W. Luis Castillo pitched for 7.0 innings in a no-decision, allowing two runs on five hits with five strikeouts and no walks. Carlos Vargas was credited with the win.

This year, the Mariners average 4.58 runs per game (10th in the MLB) on a .243/.319/.410 triple-slash. When it comes to pitching, the Mariners’ staff has a 3.83 ERA (12th) and 1.24 WHIP (11th). Cal Raleigh leads the Mariners with a .248 batting average, 43 home runs, and 93 RBI this season.

The projected starting pitcher for the Mariners is Logan Evans, who is 5-4 in 13 starts this season, with a 4.30 ERA and 1.41 WHIP in 69.0 innings.

Why the Rays will beat the Mariners

• The Mariners have lost eight of their last nine night games against AL East opponents following a win.
• The Rays have won three of their last four night games against American League opponents following a road loss.
• The Mariners have failed to cover the run line in 12 of their last 13 night games against AL East opponents following a win.
• The Rays have covered the run line each of their last six games against AL West opponents that held a winning record.
• The Mariners have lost the first inning in three of their last four night games against opponents that held a losing record.
• The Mariners have trailed after 5 innings in three of their last four home games against AL East opponents.

Total Runs Facts

• Four of the Mariners’ last five night games against AL East opponents have gone OVER the total runs line.
• Twenty-one of the Rays’ last 27 night games against AL West opponents have gone UNDER the total runs line.
• The ‘Inning 1 OVER 0.5 runs’ market has hit in seven of the Rays’ last eight road games against AL West opponents.
• The ‘Inning 1 UNDER 0.5 runs’ market has hit in 13 of the Mariners’ last 16 games at T-Mobile Park.

Matchup/League Facts

• The Mariners rank 3rd in the league for home runs this season (166).
• The Mariners rank 3rd in the league for steals this season (122).
• The Rays rank 5th in the league for walks allowed this season (330).
• The Rays are one of only six teams in the league to rank top 10 in both steals and batting average this season.

Rays vs Mariners Prediction

The Rays won six of the previous ten H2H encounters, but the Mariners were better in four of the last five. Still, I am backing the Rays to get a win in this one because I favor Joe Boyle over Logan Evans. Boyle shut the Dodgers out across 5.0 innings in his most recent start, while he allowed more than two runs just once this season. Evans, on the other hand, surrendered multiple runs in four of his previous five starts, while he registered a 5.63 ERA in July. Give me the Rays.