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Seattle Mariners vs Boston Red Sox

Tuesday, Sep 1, 2026Fenway Park6:45 PM ETPreview
SEA · Away · 64-74

Seattle Mariners

AL West · 5th · 6.0 GB
—:—
6:45 PM ET
H2H 3–3
BOS · Home · 75-63

Boston Red Sox

AL East · 5th · 7.5 GB
Starting pitcher matchup
Bryan Woo RHP
Seattle Mariners
2026 season (MLB rank among qualified starters)
ERA
4.36
124th
WHIP
1.10
38th
K/9
8.98
66th
BB/9
1.90
9th
FIP
3.42
HR/9
1.07
91st
OPS/R
0.594
IP
142.1
2026 ERA splits
Home ERA2.63
Road ERA5.96
Last 5 starts
ERA
4.33
QUALITY
START %
40%
(2 of 5)
DAYS
REST
6
TBD —
Boston Red Sox
2026 season (MLB rank among qualified starters)
ERA
—
—
WHIP
—
—
K/9
—
—
BB/9
—
—
FIP
—
HR/9
—
—
OPS/R
—
IP
—
2026 ERA splits
Home ERA—
Road ERA—
Last 5 starts
ERA
—
QUALITY
START %
—
DAYS
REST
—
Team OPS vs opposing starter's hand (2026)
Seattle vs — (TBD)
24th
in MLB
0.699OPS
.600.700.800.9001.000
Boston vs RHP (Bryan Woo)
20th
in MLB
0.711OPS
.600.700.800.9001.000
2026 season team comparison
Seattle Mariners
Stat
Boston Red Sox
0.227 (30th)
Batting Average
0.227 (7th)
0.682 (30th)
OPS
0.682 (9th)
159 (15th)
Home Runs
159 (24th)
538 (30th)
Runs Scored
538 (17th)
4.18 (16th)
Team ERA
4.18 (4th)
1.25 (8th)
Team WHIP
1.25 (6th)
8.60 (13th)
K/9 (Starters)
8.60 (12th)
Runs scored & allowed per inning (2026)
Mariners
1
2
3
4
5
6
7
8
9
Runs Scored
0.50
0.52
0.31
0.42
0.46
0.45
0.42
0.37
0.39
Runs Allowed
0.53
0.33
0.52
0.47
0.39
0.55
0.57
0.61
0.45
Red Sox
1
2
3
4
5
6
7
8
9
Runs Scored
0.45
0.38
0.61
0.51
0.48
0.47
0.48
0.39
0.68
Runs Allowed
0.55
0.35
0.43
0.42
0.58
0.38
0.33
0.46
0.30
Projected lineups vs opposing starter (2026)
Boston vs — Bryan Woo
#
Player
Bats
AVG
OPS
HR
PA
1
Willson Contreras
R
0.276
0.884
26
0
2
Curtis Mead
R
0.235
0.815
17
0
3
Mickey Gasper
S
0.310
0.946
5
0
4
Wilyer Abreu
L
0.234
0.758
23
0
5
Nick Sogard
S
0.243
0.692
3
0
Top hitters from roster with season splits vs pitcher hand — not the official batting order

Official starting lineups are published a few hours before first pitch. They will appear here and on the lineup page as soon as they are posted.

Lineup not yet announced · posted ~1–2 hrs before first pitch
Matchup Preview

Preview text not generated yet.

Last 10 games
Seattle Mariners (4–6)
L
L
L
L
L
W
W
L
W
W
Boston Red Sox (6–4)
W
L
W
L
L
L
W
W
W
W
2026 head-to-head
Season Series
3—3
6 Games Played
Weather at game time
Fenway Park
☁
65°F
—
WindE 2 mph
Precip Chance21%
Humidity—
IMPACT ON GAME: Low
Odds
Mariners @ Sox
SEA
—— flat
BOS
— flat—
TOTAL——flat
O—— flat
U—— flat
Standings
(AS OF SEP 1, 2026)
AL West
1Houston Astros70-68-
2Athletics53-8517.0
3Los Angeles Angels53-8517.0
4Texas Rangers68-702.0
5Seattle Mariners64-746.0
AL East
1Tampa Bay Rays82-55-
2Baltimore Orioles69-6913.5
3Toronto Blue Jays68-7014.5
4New York Yankees78-604.5
5Boston Red Sox75-637.5
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Arrighetti·Williams
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Vásquez·Lodolo
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Manaea·Peralta
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6:40 PM
Webb·Skenes
Braves@Nationals
6:45 PM
Smith-Shawver·Irvin
Tigers@Twins
7:40 PM
Melton·Morris
Marlins@Royals
7:40 PM
Phillips·Dobnak
Brewers@Cubs
7:40 PM
Gasser·Boyd
Athletics@Rangers
8:05 PM
Basso·Gore
White Sox@Astros
8:10 PM
Burke·Blanco
Orioles@Rockies
8:40 PM
Bradish·Hughes
Yankees@Angels
9:38 PM
Cole·Rodriguez
Phillies@Diamondbacks
9:40 PM
Luzardo·Rodriguez
Cardinals@Dodgers
10:10 PM
McGreevy·Lauer
View full slate →