Friday, Aug 21, 2026T-Mobile Park10:10 PM ETPreview

CHC · Away · 74-54

Chicago Cubs

NL Central · 5th · 4.5 GB

—:—

10:10 PM ET

SEA · Home · 60-67

Seattle Mariners

AL West · 5th · 4.0 GB

Starting pitcher matchup

Matthew Boyd —

Chicago Cubs

2026 season (MLB rank among qualified starters)

ERA

—

100th

WHIP

—

81st

K/9

—

141st

BB/9

—

70th

FIP

4.64

HR/9

—

135th

OPS/R

0.771

—

2026 ERA splits

Home ERA5.44

Road ERA2.57

Last 5 starts

ERA

—

QUALITY
START %

—

DAYS
REST

—

TBD —

Seattle Mariners

2026 season (MLB rank among qualified starters)

ERA

—

WHIP

—

K/9

—

BB/9

—

FIP

—

HR/9

—

OPS/R

—

2026 ERA splits

Home ERA—

Road ERA—

Last 5 starts

ERA

—

QUALITY
START %

—

DAYS
REST

—

Team OPS vs opposing starter's hand (2026)

Cubs vs — (TBD)

7th

in MLB

0.740OPS

.600.700.800.9001.000

Seattle vs — (Matthew Boyd)

22nd

in MLB

0.705OPS

.600.700.800.9001.000

2026 season team comparison

Chicago Cubs

Stat

Seattle Mariners

— (9th)

Batting Average

— (28th)

— (3rd)

OPS

— (27th)

— (7th)

Home Runs

— (16th)

— (2nd)

Runs Scored

— (30th)

— (17th)

Team ERA

— (11th)

— (10th)

Team WHIP

— (6th)

— (25th)

K/9 (Starters)

— (12th)

Runs scored & allowed per inning (2026)

Cubs

Runs Scored

0.51

0.60

0.52

0.56

0.53

0.74

0.60

0.55

0.50

Runs Allowed

0.45

0.47

0.63

0.54

0.52

0.35

0.60

0.28

Mariners

Runs Scored

0.45

0.47

0.34

0.43

0.47

0.48

0.43

0.41

0.40

Runs Allowed

0.43

0.30

0.53

0.52

0.33

0.49

0.59

0.46

0.44

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

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Last 10 games

Chicago Cubs (0–0)

Seattle Mariners (0–0)

2026 head-to-head

Season Series

0—0

0 Games Played

Chicago Cubs vs Seattle Mariners

Chicago Cubs

Seattle Mariners