Rays vs Mariners Prediction 9/1/25 MLB Picks Today

The Seattle Mariners and Tampa Bay Rays meet Monday in MLB action at George M. Steinbrenner Field. Here’s a Rays vs Mariners Prediction. This article will include a Rays vs Mariners Pick.

Seattle Mariners Betting Preview

The Seattle Mariners are 73-64 on the year and play the Braves, Cardinals, and Angels next. The Seattle Mariners are batting .242 on the season, have a .318 OBP, and a .410 slugging percentage. The Seattle Mariners pitching staff has a 3.96 ERA and a 1.25 WHIP. Julio Rodriguez leads the Seattle Mariners with 149 hits and 78 RBI, while JP Crawford and Randy Arozarena have combined for 252 hits and 112 RBI.


Luis Castillo gets the ball for the Seattle Mariners, and he is 8-7 with a 3.75 ERA and 133 strikeouts this season. Castillo is 2-1 with a 3.16 ERA and 35 strikeouts in his career against the Tampa Bay Rays.

Tampa Bay Rays Betting Preview

The Tampa Bay Rays are 67-69 on the year and play the Guardians, White Sox, and Cubs next. The Tampa Bay Rays are batting .250 on the season, have a .312 OBP, and a .401 slugging percentage. The Tampa Bay Rays pitching staff has a 3.89 ERA and a 1.21 WHIP. Yandy Diaz leads the Tampa Bay Rays with 143 hits and 74 RBI while Junior Caminero and Jonathan Aranda have combined for 243 hits and 148 RBI.

Shane Baz gets the ball for the Tampa Bay Rays, and he is 8-11 with a 5.19 ERA and 150 strikeouts this season. This will be Baz’s first career game against the Seattle Mariners.

Why the Tampa Bay Rays will win

Why the Seattle Mariners will win

Tampa Bay Rays Player Prop Facts

Seattle Mariners Player Prop Facts

Rays vs Mariners Prediction

We know what Castillo is capable of when he’s right, but he’s allowed 33 hits and 18 runs in his last 24.1 innings. Castillo has allowed 15 hits and eight runs while walking five in his last nine innings. In 64.1 road innings, Castillo has a 5.04 ERA and .320 allowed batting average. Baz has a 5.19 ERA and 1.35 WHIP on the season, and in his last 25 innings he allowed 29 hits and 22 earned runs. In 66.1 home innings, Baz has a 7.06 ERA and .284 allowed batting average. A lot of ugly numbers here, folks. I expect some fireworks. Give me the over.

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