TBD TBD
Starter not announced
Today · 10:10 PM ETLineup pendingAL West
Houston Astros vs Seattle Mariners Preview
September 23, 2026
Starting pitchers, lineup status, recent form and weather at T-Mobile Park.
10:10 PM ET · T-Mobile ParkStats availableLineups not confirmed
Starting pitchers
George Kirby RHP
2026 season (MLB rank among qualified starters)
ERA
4.24
118th
WHIP
1.39
153rd
K/9
7.59
133rd
BB/9
2.33
38th
P-Score55i
FIP
3.84
HR/9
1.11
94th
OPS/R
0.739
IP
169.2
2026 ERA splits
Home ERA3.27
Road ERA5.53
Last 5 starts
Advanced starter metricsERA−, FIP, WAR, career vs opponent
| Metric | Starter | Kirby | Note |
|---|---|---|---|
| ERA− | – | 110 | Park- and league-adjusted; 100 is average. |
| FIP | – | 3.84 | |
| WAR | – | 2.5 | Season value. |
How the lineups match the starters' pitch mix
Pitch data coverage: partial. Usage and velocity only.
Offense vs pitcher hand
Lineups
Lineup pendingOrder from the stored snapshot; treat as unofficial until the card is filed.Full lineup page
Team comparison
HOU·SEA+22217th
Run differential
+15626th
77–79 Record73–83
Last 10 games
2026 head-to-head
Season Series
0—0
Frequently asked
Who is starting for the Astros?+
Houston Astros has not announced a starter for this game.
Who is starting for the Mariners?+
George Kirby is listed as the starter.
What time does the game start?+
10:10 PM ET at T-Mobile Park.
Where is the game being played?+
T-Mobile Park, home of the Seattle Mariners.
Are the lineups confirmed?+
Not yet. Orders appear here when they are posted.
How do the starters compare on P-Score?+
P-Score is available for one starter only.