Seattle Mariners vs Tampa Bay Rays MLB Betting Prediction
PublishedSeptember 1, 2025,            Posted By: Maria Uebelhor
Last updated:September 1, 2025 ,

MLB Seattle Mariners vs Tampa Bay Rays Prediction 9/1

The Seattle Mariners will play against the Tampa Bay Rays on Monday, September 1, 2025, at 7:35 PM. The game will take place at George M. Steinbrenner Field in Tampa, FL. Fans can watch the game on FDSSU, and the weather forecast predicts a very hot day with a light breeze and broken clouds.

Mariners vs. Rays Betting Prediction

  • Money Line Prediction: Rays -101. The Rays have a better recent form with a 6-4 record in their last 10 games and a three-game winning streak. They also have a slight edge at home with a 34-33 record.
  • Over/Under Prediction: Under 8.5 (-107). Both teams have starting pitchers with ERAs over 3.75, but the Mariners have a solid pitching staff, ranking 10th in batting average against. The Rays also have a strong pitching staff, ranking 7th in batting average against.

Team Trends

  • The Seattle Mariners have a road record of 32-37 this season.
  • The Tampa Bay Rays have a home record of 34-33 this season.
  • Seattle Mariners’ manager is Dan Wilson, while the Rays are managed by Kevin Cash.
  • The Mariners recently won against the Cleveland Guardians with a score of 4-2.
  • The Rays are on a three-game winning streak, with their last win being 7-4 against the Washington Nationals.

Mariners vs Rays Preview

The Seattle Mariners are set to compete against the Tampa Bay Rays on Monday evening. The Mariners hold a record of 73-64 and stand second in their division. They recently broke even in their last ten games, going 5-5. Luis Castillo will take the mound for Seattle, sporting a 3.75 ERA and a WHIP of 1.28.

The Tampa Bay Rays have a record of 67-69, placing them fourth in their division. They have been performing well lately, winning three games in a row and going 6-4 in their last ten. Shane Baz will pitch for the Rays, with a 5.19 ERA and a WHIP of 1.35. The game will be played at George M. Steinbrenner Field, where fans can expect a very hot evening with a light breeze and broken clouds.

Rays Ready for Action

The Tampa Bay Rays have some strong hitters this season. Junior Caminero leads the team with 39 home runs and 94 RBIs. Yandy Díaz also contributes with a .284 batting average and 22 home runs. Brandon Lowe adds power with 28 home runs and a .493 slugging percentage. Jonathan Aranda impresses with a .316 batting average. These players help the Rays maintain a solid offensive lineup. The Rays’ pitching staff is led by Shane Baz, who has an 8-11 record. His ERA stands at 5.19, and his WHIP is 1.35. The team ERA is 3.89, placing them 14th in the league.

Mariners Set to Compete

The Seattle Mariners have a strong lineup this season. Cal Raleigh leads with 50 home runs and 107 RBIs. Eugenio Suárez follows with 42 home runs and 105 RBIs. Josh Naylor stands out with a .283 batting average. Seattle’s team batting average is .242, ranking 12th in the league. Their on-base percentage is .316, placing them 11th. The Mariners hit 195 home runs, which is 3rd in the league. Their slugging percentage is .410, ranked 8th. On the pitching side, Luis Castillo leads as the starting pitcher. His ERA is 3.75, and his WHIP is 1.28. The Mariners’ team ERA is 3.96, placing them 17th in the league. They have 57 quality starts, ranking 6th.

Final Betting Pick

The Rays are a solid pick for the money line at -101. They have won six of their last ten games and are on a three-game winning streak. At home, they have a slight edge with a 34-33 record, which could give them confidence against the Mariners.

For the over/under, choosing under 8.5 seems reasonable. Both teams have strong pitching, with the Mariners ranked 10th and the Rays 7th in batting average against. Even though the starting pitchers have ERAs over 3.75, the teams’ overall pitching strength could keep the score low.

All odds are courtesy of Action247 Sportsbook. Good luck!!

* All odds are provided by Action247 Sportsbook and all odds subject to change. **All views expressed are my own. My picks are my own and are not a guarantee, bet at your own risk. Action247 does not warrant the accuracy of completeness of the information, text, graphics, links or other items contained within these post.