Seattle Mariners at Boston Red Sox odds, picks and predictions

The Seattle Mariners (21-20) continue their 3-game series at the Boston Red Sox (22-20) on Tuesday. First pitch from Fenway Park is at 7:10 p.m. ET. Let’s analyze BetMGM Sportsbook’s lines around the Mariners vs. Red Sox odds and make our expert MLB picks and predictions for the best bets.

Season series: Mariners lead 1-0

The Red Sox have lost 6 of their last 7 games and while you could forgive them (somewhat) if they lost against the scary AL East, their recent opponents are either straddling .500 or well under.

In the series opener Monday, Seattle scored 2 runs in the 5th inning on catcher Cal Raleigh‘s HR and 3 in the 6th before Boston scored on a double by 3B Rafael Devers. But the Mariners kept up the attack and won 10-1. Boston lost 9-1 in its previous game against the St. Louis Cardinals on Sunday.

Mariners at Red Sox projected starters

RHP Luis Castillo vs. RHP Nick Pivetta

Castillo (2-1, 2.70 ERA) makes his 9th start. He has a 0.98 WHIP, 1.7 BB/9 and 10.0 K/9 in 46 2/3 innings.

• Last start: Loss, 5 IP, 3 ER, 8 H, 0 BB, 9 K in a 4-3 loss to the Seattle Mariners on May 10
• .Has 095 opponent BA in his 2 wins, .348 in his 1 loss

Pivetta (2-3, 6.23 ERA) makes his 8th start. He has a 1.50 WHIP, 3.9 BB/9 and 9.3 K/9 in 34 2/3 innings.

• Last start: Loss, 4 IP, 7 ER, 8 H, 3 BB, 2 K in 9-3 loss at the Atlanta Braves May 9
• Nearly 85% of his innings pitched have been against teams with a record at or above .500%

Mariners at Red Sox odds

BetMGM Sportsbook; access USA TODAY Sports Scores and Sports Betting Odds hub for a full list. Lines last updated at 7:23 a.m. ET.

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Cardinals at Red Sox picks and predictions

Prediction

Red Sox 5, Mariners 3

Trendwise both teams are coming into Tuesday on a streak. The Red Sox are 5-1 in their last 6 against teams with a winning record. And the Mariners are 7-1 in their last 8 road games.

I like the idea of grabbing the home team at plus money, but you may want to be safer with the run line.

LEAN RED SOX +135.

Boston has a 8-4 record ATS as a home underdog. For those uncomfortable picking Boston straight up at home, -115 is not as chalky as you would think for a home dog.

BET RED SOX +1.5 (-115).

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While Boston is the 3rd-best team Over team in MLB at home (16-7-1), they have been in a slump recently, scoring more than 3 runs just twice in their last 7 games. That hasn’t stopped the other team from running up the score, but with Seattle 11-8 toward the Under on the road best to just PASS.

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