Friday, Sep 4, 2026Daikin Park8:10 PM ETPreview

AZ · Away · 74-67

Arizona Diamondbacks

NL West · 4th · 9.0 GB

—:—

8:10 PM ET

HOU · Home · 71-69

Houston Astros

AL West · 1st · —

Starting pitcher matchup

Merrill Kelly —

Arizona Diamondbacks

2026 season (MLB rank among qualified starters)

ERA

—

164th

WHIP

—

186th

K/9

—

205th

BB/9

—

176th

FIP

5.56

HR/9

—

190th

OPS/R

0.734

—

2026 ERA splits

Home ERA6.10

Road ERA4.35

Last 5 starts

ERA

—

QUALITY
START %

—

DAYS
REST

—

TBD —

Houston Astros

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)

Arizona vs — (TBD)

29th

in MLB

0.682OPS

.600.700.800.9001.000

Astros vs — (Merrill Kelly)

12th

in MLB

0.728OPS

.600.700.800.9001.000

2026 season team comparison

Arizona Diamondbacks

Stat

Houston Astros

— (18th)

Batting Average

— (20th)

— (22nd)

OPS

— (13th)

— (26th)

Home Runs

— (5th)

— (16th)

Runs Scored

— (12th)

— (15th)

Team ERA

— (24th)

— (13th)

Team WHIP

— (23rd)

— (30th)

K/9 (Starters)

— (9th)

Runs scored & allowed per inning (2026)

Diamondbacks

Runs Scored

0.47

0.43

0.46

0.45

0.52

0.57

0.52

0.60

0.44

Runs Allowed

0.62

0.37

0.60

0.34

0.65

0.54

0.46

0.40

0.50

Astros

Runs Scored

0.58

0.46

0.50

0.51

0.54

0.48

0.42

0.56

0.40

Runs Allowed

0.59

0.47

0.61

0.65

0.80

0.34

0.54

0.44

0.31

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

Arizona Diamondbacks (0–0)

Houston Astros (0–0)

2026 head-to-head

Season Series

0—0

0 Games Played

Arizona Diamondbacks vs Houston Astros

Arizona Diamondbacks

Houston Astros