Tampa Bay Rays vs Seattle Mariners Prediction – 8/9/2025
The Tampa Bay Rays and Seattle Mariners are set to face off on Saturday night at T-Mobile Park. The Mariners are riding a five-game winning streak into this matchup after winning the series opener on Friday. Seattle will look to strengthen their grip on an American League Wild Card spot with another win here. Before first pitch from the Pacific Northwest, continue reading to get my Rays vs Mariners prediction.
Our Rays vs Mariners Pick
- Pick: Rays Moneyline
- Confidence: 3/5
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Game Snapshot
- Matchup: Tampa Bay Rays vs Seattle Mariners
- Date & Time: Saturday, August 9, 2025, 9:40 PM ET
- Starting Pitchers: Joe Boyle (Rays) vs Logan Evans (Mariners)
- Stadium: T-Mobile Park, Seattle, WA
- Broadcast: MLB Network
Key Storylines
Pitching matchup
Joe Boyle enters this game with a 1-1 record and a 2.30 ERA. He has pitched well in limited action so far this season. However, he faces a challenging Mariners lineup led by MVP candidate Cal Raleigh and will need to be careful with Seattle’s power bats. Logan Evans has a 5-4 record with a 4.30 ERA for the Mariners.
Key Players
- Junior Caminero (Rays): The Rays’ third baseman has 31 home runs and 77 RBI to lead the Rays.
- Cal Raleigh (Mariners): The Mariners’ catcher leads the team with 43 home runs and 93 RBI.
Recent team streaks
- The Mariners have won five games in a row and are peaking at the right time for the playoff push.
- The Rays had a two-game winning streak snapped by the Mariners on Friday night.
Best Player Props
| Player | Prop |
|---|---|
| Junior Caminero | Over 0.5 Home Runs |
| Cal Raleigh | Over 0.5 Home Runs |
| Joe Boyle | Over 5.5 Strikeouts |
| Logan Evans | Under 4.5 Strikeouts |
Betting Trends & H2H
- The Mariners won the first game of the season series between these teams on Friday night.
- The first game between Tampa and Seattle stayed under the total. Seattle won 3-2 at home.
- The Rays are 32-39 in night games so far this season.
- Seattle has fared better at night. They are 38-36 in their night games.
Rays vs Mariners Model Projection
- Score Projection: Rays 5 – Mariners 4
- Win Probability: Rays 50%, Mariners 50%
Final Thoughts
I make this game a pick ’em, even if the betting markets have installed the Mariners as decent-sized favorites. Joe Boyle has been impressive on the mound for the Rays so far this year. And while Logan Evans has been decent in 2025, I think he is still vulnerable against Caminero and the other impact bats in Tampa’s lineup. I’ll take the Rays to win this game as an underdog on the road and to snap Seattle’s five-game winning streak.
