Seattle Mariners vs Boston Red Sox

Boston welcomes Seattle with momentum on their side, coming off two straight wins while the visiting Mariners aim to rebound from a loss in the series already. The Red Sox may be down a couple of key players, but their rotation has found some consistency, and their bullpen enters the matchup with much-needed rest. Meanwhile, Seattle’s relief corps is both shorthanded and overworked, having seen more innings than any other group this week. On the mound, Boston sends out a starter who’s been highly effective this month, in contrast to a Seattle righty who’s had trouble with left-handed hitters in this matchup historically.

With conditions at Fenway expected to favor power from the left side and Boston’s lineup built to take advantage, the -135 line looks fair. The home team’s current rhythm, paired with the Mariners' bullpen issues, makes this a solid play—not overwhelming, but definitely worth backing. B+ is the right call here: strong value, minimal red flags.

Seattle enters this matchup on an upswing despite dropping their last game, fueled by sharp starting pitching, while Boston has been heating up with a 7-3 run but could be without one of its top power threats due to injury. Both teams are managing minor lineup absences, and with two starters who have historically handled their opponent well—each posting sub-2.30 career ERAs in this matchup—the setting is ripe for a low-scoring affair. The marine layer and early-season rust on both lineups only further hint at a game likely dominated by pitching rather than offense.

Feels like one of those quiet nights where the outfielders stay busy tracking fly balls instead of turning to watch them leave the yard. With both teams missing some firepower and the arms in control lately, the Under looks tempting. It’s not a flashy play, but definitely one for the value-hunters.

Boston enters this one with momentum, having won four of their last five, while Seattle continues to search for answers having already dropped a game in this series and a lineup missing a key presence at the top. The Mariners' starter has battled command issues recently, which doesn’t bode well against a Boston offense slugging near .450 at home. With the bullpen back at full strength and an energized home crowd behind them, the Red Sox have the tools to capitalize late, especially against a Mariners club that’s stumbled in close games. A steadying presence in the ninth helps offset ongoing absences in the infield, giving the hosts an edge on both sides of the ball.

Feels like the kind of night where Boston grinds out just enough. Their bats have been hot, they’re at home, and the M’s don’t have that spark right now. The -1 line isn’t massive value, but it’s solid—and when you factor in how Boston’s been finishing games, it makes this cover look pretty darn bankable. Grade: B+.