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Today · 9:40 PM ETLineup pendingAL West

Seattle Mariners   vs   Athletics Preview

September 12, 2026

Starting pitchers, lineup status, recent form and weather at Sutter Health Park.

9:40 PM ET · Sutter Health ParkStats availableLineups not confirmed
T-Score43
Seattle Mariners
69–78 · 3rd AL West · T-Score 43
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First pitch 9:40 PM ET
Athletics
59–88 · 4th AL West · T-Score 27
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T-Score27
First pitch 9:40 PM ET

Matchup at a glance

PitcherStat calculation
CategoryComparisonWhy
Starting pitcherMarinersSeattle has the stronger starting-pitcher profile: Woo leads in P-Score, WHIP and FIP.
Offense vs handAthleticsAthletics owns a .719 OPS vs RHP, 15th in MLB; Seattle ranks 30th vs LHP.
Team strengthMarinersSeattle leads 43–27 in T-Score.
WeatherLow impact63°F, wind 8 mph, no precipitation expected at first pitch.

Starting pitchers

SEA
Bryan Woo RHP
Bryan Woo
Seattle Mariners
2026 season (MLB rank among qualified starters)
ERA
4.03
106th
WHIP
1.06
24th
K/9
9.10
64th
BB/9
1.90
11th
P-Score72i
FIP
3.34
HR/9
1.04
89th
OPS/R
0.556
IP
156.1
2026 ERA splits
Home ERA2.36
Road ERA5.63
Last 5 starts
ATH
Gage Jump LHP
Gage Jump
Athletics
2026 season (MLB rank among qualified starters)
ERA
5.12
172nd
WHIP
1.49
192nd
K/9
9.87
36th
BB/9
4.19
189th
P-Score57i
FIP
3.73
HR/9
0.93
65th
OPS/R
0.773
IP
96.2
2026 ERA splits
Home ERA5.62
Road ERA4.60
Last 5 starts
How the starters differ
·Woo allows fewer baserunners, with a 1.06 WHIP compared with 1.49.
·Woo enters with a 4.03 ERA compared with Jump's 5.12.
·Woo carries a 5.63 road ERA, compared with Jump's 5.62 mark at home.
Advanced starter metricsERA−, FIP, WAR, career vs opponent
MetricWooJumpNote
ERA−104114Park- and league-adjusted; 100 is average.
FIP3.343.73
WAR3.51.9Season value.

How the lineups match the starters' pitch mix

Pitch data coverage: partial. Usage and velocity only.

Woo arsenal
PitchUsageVelo
Four-seam47%96.1
Sinker19%95.9
Slider15%87.1
Sweeper11%84.5
Changeup6%89.6
Curveball2%83.1
Jump arsenal
PitchUsageVelo
Four-seam47%96.3
Slider22%87.2
Curveball11%82.3
Changeup9%87.6
Sweeper6%83.8
Sinker5%95.1

Team OPS vs opposing starter's hand

Mariners vs LHP (Gage Jump)
30th
in MLB
0.628OPS
.600.700.800.9001.000
Athletics vs RHP (Bryan Woo)
15th
in MLB
0.719OPS
.600.700.800.9001.000

Lineups

Lineup pendingOrder from the stored snapshot; treat as unofficial until the card is filed.Full lineup page →
Lineups not announced

Neither club has posted a batting order. Handedness composition, H-Score leaders and batter-vs-pitcher samples appear here as soon as the first order is filed — typically two to three hours before first pitch.

Team comparison

ResultsSEASEA·ATHATH
+9827th
Run differential
+330th
69–78 Record59–88
Last 10 games
Seattle Mariners (0–0)
Athletics (0–0)
2026 head-to-head
Season Series
0—0
0 Games Played

Frequently asked

Who is starting for the Mariners?+
Bryan Woo is listed as the starter.
Who is starting for the Athletics?+
Gage Jump is listed as the starter.
What time does the game start?+
9:40 PM ET at Sutter Health Park.
Where is the game being played?+
Sutter Health Park, home of the Athletics.
Are the lineups confirmed?+
Not yet. Orders appear here when they are posted.
How do the starters compare on P-Score?+
Bryan Woo is at 72; Gage Jump is at 57. P-Score is PitcherStat's 0–100 season index for qualified starters.