Seattle Mariners vs Boston Red Sox Prediction & Picks - MLB

See our betting tips for the next match between these two teams
Seattle Mariners - Boston Red Sox Betting tips

USA - MLB

Seattle Mariners
6/20/26 22:10
Boston Red Sox

Prediction:

 

Over 7.5

+103
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 by Carlos Zabala in MLB Picks

On Friday, the Red Sox defeated the Mariners 6-2 at T-Mobile Park when Suárez carried a no-hitter into the seventh inning. The series continues Saturday, with Seattle a -132 favorite to win Game 2.

The Mariners have a lineup heavily loaded with left-handed hitters; to counter this, they called up right-handed hitter Weston Wilson from the minors. He went 0-for-3 batting ninth on Friday. Recurring injuries have plagued the Mariners all year; however, Cal Raleigh returned from a long absence. Julio Rodríguez appeared in the lineup after recovering from a hamstring spasm, but Raleigh and Arozarena remain on the injured list.

After reaching 30 wins but still sitting in last place in the AL East, the Red Sox will continue to rely on Connelly Early on Saturday. He's had a rough June, going 0-3 with a 7.36 ERA. He allowed 11 hits and 6 ER in his last outing, a blowout loss to the Rangers.

Seattle Mariners vs Boston Red Sox Form

Table

Teams Pts P W L
14 Seattle Mariners
0.506 77 39 38
27 Boston Red Sox
0.411 73 30 43

Seattle Mariners and Boston Red Sox Latest Matches

Seattle Mariners
Seattle Mariners Latest matches
L L W L W L
Victories

2/6 (33%)

Defeats

4/6 (67%)

Jun 19, 2026 - MLB

Seattle Mariners
2 :  6
Boston Red Sox

Jun 18, 2026 - MLB

Seattle Mariners
3 :  0
Baltimore Orioles

Jun 17, 2026 - MLB

Seattle Mariners
3 :  5
Baltimore Orioles

Jun 16, 2026 - MLB

Seattle Mariners
3 :  1
Baltimore Orioles

Jun 14, 2026 - MLB

Washington Nationals
10 :  1
Seattle Mariners

Jun 13, 2026 - MLB

Washington Nationals
8 :  3
Seattle Mariners
W L W L W L
Victories

3/6 (50%)

Defeats

3/6 (50%)

Jun 19, 2026 - MLB

Seattle Mariners
2 :  6
Boston Red Sox

Jun 18, 2026 - MLB

Seattle Mariners
3 :  0
Baltimore Orioles

Jun 17, 2026 - MLB

Seattle Mariners
3 :  5
Baltimore Orioles

Jun 16, 2026 - MLB

Seattle Mariners
3 :  1
Baltimore Orioles

Jun 3, 2026 - MLB

Seattle Mariners
1 :  7
New York Mets

Jun 2, 2026 - MLB

Seattle Mariners
8 :  3
New York Mets
W L L W L L
Victories

2/6 (33%)

Defeats

4/6 (67%)

Jun 14, 2026 - MLB

Washington Nationals
10 :  1
Seattle Mariners

Jun 13, 2026 - MLB

Washington Nationals
8 :  3
Seattle Mariners

Jun 12, 2026 - MLB

Washington Nationals
2 :  10
Seattle Mariners

Jun 11, 2026 - MLB

Baltimore Orioles
7 :  5
Seattle Mariners

Jun 10, 2026 - MLB

Baltimore Orioles
7 :  2
Seattle Mariners

Jun 9, 2026 - MLB

Baltimore Orioles
5 :  6
Seattle Mariners
Boston Red Sox
Boston Red Sox Latest matches
W L L L L W
Victories

2/6 (33%)

Defeats

4/6 (67%)

Jun 19, 2026 - MLB

Seattle Mariners
2 :  6
Boston Red Sox

Jun 18, 2026 - MLB

Boston Red Sox
3 :  4
Toronto Blue Jays

Jun 17, 2026 - MLB

Boston Red Sox
0 :  3
Toronto Blue Jays

Jun 16, 2026 - MLB

Boston Red Sox
1 :  6
Toronto Blue Jays

Jun 14, 2026 - MLB

Boston Red Sox
4 :  6
Texas Rangers

Jun 13, 2026 - MLB

Boston Red Sox
6 :  3
Texas Rangers
W W L L L L
Victories

2/6 (33%)

Defeats

4/6 (67%)

Jun 18, 2026 - MLB

Boston Red Sox
3 :  4
Toronto Blue Jays

Jun 17, 2026 - MLB

Boston Red Sox
0 :  3
Toronto Blue Jays

Jun 16, 2026 - MLB

Boston Red Sox
1 :  6
Toronto Blue Jays

Jun 14, 2026 - MLB

Boston Red Sox
4 :  6
Texas Rangers

Jun 13, 2026 - MLB

Boston Red Sox
6 :  3
Texas Rangers

Jun 12, 2026 - MLB

Boston Red Sox
10 :  1
Texas Rangers
W L L L L W
Victories

2/6 (33%)

Defeats

4/6 (67%)

Jun 19, 2026 - MLB

Seattle Mariners
2 :  6
Boston Red Sox

Jun 10, 2026 - MLB

Tampa Bay Rays
7 :  5
Boston Red Sox

Jun 9, 2026 - MLB

Tampa Bay Rays
4 :  3
Boston Red Sox

Jun 8, 2026 - MLB

Tampa Bay Rays
3 :  1
Boston Red Sox

Jun 7, 2026 - MLB

New York Yankees
6 :  1
Boston Red Sox

Jun 5, 2026 - MLB

New York Yankees
3 :  5
Boston Red Sox

Seattle Mariners against Boston Red Sox : Head to Head (H2H)

Seattle Mariners

50 %

Boston Red Sox

50 %

Jun 19, 2026 - MLB

Seattle Mariners
2 :  6
Boston Red Sox

Jun 18, 2025 - MLB

Seattle Mariners
1 :  3
Boston Red Sox

Jun 17, 2025 - MLB

Seattle Mariners
8 :  0
Boston Red Sox

Jun 16, 2025 - MLB

Seattle Mariners
0 :  2
Boston Red Sox

Apr 24, 2025 - MLB

Boston Red Sox
3 :  4
Seattle Mariners

Apr 23, 2025 - MLB

Boston Red Sox
5 :  8
Seattle Mariners

Seattle Mariners - Boston Red Sox Key Points

  1. The Red Sox are 3-7 in their last 10 games
  2. The Red Sox have the second-lowest average runs per game in MLB
  3. The Mariners have the eighth-most home runs in MLB
  4. The Mariners' collective pitching ERA is fifth-best in MLB

Our Seattle Mariners vs Boston Red Sox Prediction

The total game line at sportsbooks remains low at 7.5 for Saturday's game, despite the pitching matchup featuring two pitchers who have struggled in recent starts.

Emerson Hancock will start for the Mariners; he gave up 9 hits, 4 of them extra-base hits, in his last start against the Nationals, a game the Mariners lost 10-1. Good opportunity to take the total game over bet?

Our prediction for Mariners vs Red Sox is: Over 7.5.

Prediction:

 

Over 7.5

+103
$200 offered for betting!

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All tips are fully researched and given in good faith, but profits cannot be guaranteed.

Seattle Mariners vs Boston Red Sox Picks