Boston Red Sox vs Seattle Mariners Prediction and Picks, September 1, 2026

The Boston Red Sox are looking strong, winning 6 of their last 10 games. They've been particularly good against left-handed pitchers, hitting for a much higher average than most teams in the league. Playing at home gives them a boost too, with a decent record at Fenway Park. On the other hand, the Seattle Mariners have struggled against lefties this season, which could be a problem for them. Although they've had some success at home, they are not as solid on the road.

Boston Red Sox vs Seattle Mariners: Boston Red Sox -1 Spread (+117)

The Boston Red Sox have been playing well lately, winning 6 of their last 10 games. They are especially strong against left-handed pitchers, hitting for a much better average than most teams. With the Seattle Mariners struggling against lefties this season, the Red Sox have a good chance to pull ahead. Even though this matchup is close, the Red Sox perform better at home and have the momentum. The Mariners have only won 4 of their last 10 and have a tough time against left-handed starters.

Boston Red Sox vs Seattle Mariners: Over 7.5 Total Runs (+100)

For this bet to work, we need both teams to score at least eight runs tonight. The Boston Red Sox have been hitting well, especially against left-handed pitchers, where they've been much better than average. They've also won six of their last ten games, and playing at Fenway Park gives them a nice boost. The Seattle Mariners haven't been great this season, especially in night games, and they've struggled to score lately, averaging just over four runs in their last 12 games. It's a close matchup, but with the Red Sox's strong batting against lefties and the chance for runs from both sides, hitting over 7.5 looks promising. Just remember, if the Mariners hit another rough patch, this could fall short.

Boston Red Sox vs Seattle Mariners: Roman Anthony Over 0.5 Batter - Hits + Runs + RBIs (-303)

The odds for Roman Anthony to get over 0.5 hits, runs, or RBIs are looking pretty good. The Boston Red Sox have been hitting well lately, especially against left-handed pitchers, and the wind blowing out tonight at Fenway Park could help too. Roman has been on fire, getting hits at about 1.3 times his usual rate and not striking out at all in his last three games. However, the Seattle Mariners have been a tough matchup, especially on the road. They have struggled against left-handed pitching this season, which could make things tricky. Still, with Roman's current form and the conditions favoring hitters, there's a strong chance he can pull this off.

That is the whole read on this one. Prices can move before you get on, so check the board at your bookmaker. Bet what you can afford to lose. If betting stops being fun, take a break.