Seattle Mariners vs Tampa Bay Rays Picks and Prediction, Monday, September 1, 2025
The Seattle Mariners take on the Tampa Bay Rays on Tuesday, September 2, at 7:35 p.m. ET, so continue reading for our Mariners vs Rays prediction. This is written before Monday's game has ended.
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Mariners Holding Onto Wild Card Spot
Seattle enters play with a record of 73-64 and is coming off a series loss to the Cleveland Guardians. The Mariners are hitting .242, which ranks 21st, while in the month of August, they hit .228. Against Rasmussen, Arozarena is 3-for-4, Garver is 2-for-2, Naylor is 1-for-3, Polanco hits .250 in 8 ABs, Rodriguez hits .250 in 8 ABs, and Raleigh is 0-for-7.
The Mariners are set to start right-hander Bryan Woo, who's 12-7 with a 2.95 ERA in 26 starts this season. Last time out, he went 5.2 innings, allowing two runs against the Padres. In his career against Tampa Bay, Woo is 1-0 with a 4.00 ERA. Seattle has a team ERA of 3.96, which ranks 17th.
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Rays Under .500
Tampa Bay enters the series against Seattle with a record of 67-69 and is coming off a three-game sweep of the Washington Nationals. The Rays are set to start right-hander Drew Rasmussen, who's 10-5 with a 2.64 ERA in 26 starts this season. Last time out, he went 6 innings, allowing 2 runs against the Guardians. The right-hander is 2-0 with a 0.44 ERA in his career against Seattle. Tampa Bay has a team ERA of 3.89, which ranks 14th.
The Rays are hitting .250, which ranks 13th, while at home, they hit .259. Since the All-Star break, Tampa Bay is hitting .230. Against Woo, Palacios is 2-for-2, Simpson is 2-for-3, Diaz hits .400 in 5 ABs, J. Lowe hits .400 in 5 ABs, and Mangum is 1-for-3.
Mariners ML
Tampa Bay is coming off a sweep of the Nationals, but this is a good spot for the Mariners to get the win on Tuesday. Woo has pitched well all season, and he should be able to limit the Rays' offense, which has been an issue at times this season. Meanwhile, the Mariners' bats should have more success away from home, while Seattle will also take advantage of Tampa Bay's bullpen to get a big win as the Mariners look to chase down the Astros for the top spot in the AL West.
Take Mariners ML.
Under
The under is also a great spot here with Woo and Rasmussen pitching, who are two of the best pitchers this season. Both offenses have had their struggles this season, and against these two pitchers, hits and runs will be hard to come by. Woo has allowed 2 or fewer runs in four of his last five starts, going at least 5.2 innings, while Rasmussen has allowed 5 runs in his last 29.1 innings. With this pitching matchup, the under is a great spot here.
Take the under.
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