Seattle Mariners (64-74) vs. Boston Red Sox (75-63) September 1, 2026 6:45 pm EDT The Line: Boston Red Sox -126 / Seattle Mariners 104; Over/Under: 7 (Get latest betting odds)
In this article, we will formulate a Mariners vs Red Sox Prediction for this MLB matchup on Tuesday, September 1 st in the second game of this series. Let’s take a look at the prediction for this MLB matchup.
The Boston Red Sox have a 75-63 record this season and are sitting in 3rd place of the AL East. They have a 35-32 home record and are coming off a 9-8 home win against the Mariners. They will face the Orioles and the Angels next.
The Boston Red Sox have a .249 batting average this season, .323 OBP, and .405 slugging percentage. Boston’s pitching staff has a 3.60 ERA and 1.23 WHIP. Ceddanne Rafaela is the Red Sox’ best hitter with a .284 batting average. Willson Contreras leads the team in RBI with 79, adding a team-high 26 home runs.
The Red Sox have not yet announced a starting pitcher for this game.
The Seattle Mariners have a 64-74 record this season and are sitting in 3rd place of the AL West. They have a 27-43 road record and are coming off a 9-8 road loss against the Red Sox. They will face the Athletics and the Rangers next.
The Seattle Mariners have a .227 batting average this season, .308 OBP, and .374 slugging percentage. Seattle’s pitching staff has a 4.18 ERA and 1.25 WHIP. Randy Arozarena is the Mariners’ best hitter with a .274 batting average, while leading the team in RBI with 62, adding a team-high 21 home runs.
Bryan Woo (R) is the projected starting pitcher for the Mariners, with a 9-9 record, 4.36 ERA, and 1.10 WHIP.
The Red Sox are 4-1 in their last 5 meetings against the Mariners but have lost their last two of their last three meetings in Boston.
In this Mariners vs Red Sox Prediction, the Red Sox are coming as -120 home favorites. We don’t know yet who is starting for Boston, but I know that Woo is fade material on the road this season, with a 2-8 record and 5.96 ERA. On top of that, the Mariners’ bullpen has been in very bad shape lately, with the Red Sox have the second-best bullpen ERA in baseball and will be facing a Mariners team that has been terrible on the road. Take the Red Sox in this one.