← Back to today’s slate MLB matchup · September 5, 2026
Athletics
56-86 · 4th in AL West, 17 GB
Bats heating up
LHP Jeffrey Springs · Pitches to contact
@
Seattle Mariners
66-76 · 3rd in AL West, 7 GB
Bats heating up
RHP George Kirby · Command specialist
MLB · T-Mobile Park · 6:40 PM PT

Team Identity

Athletics
Season-to-date, 142 games, 5,567 PA.
An opportunistic, contact-oriented offense that cashes in scoring chances, though it can be station-to-station. The bats have been heating up lately.
Power
Average64
Contact
Above Avg66
Plate Discipline
Below Avg45
Speed
Below Avg30
RISP
Above Avg76
Recent Form
Trending Up
Total bases per PA is up 21% over the team's last 10 games versus its season baseline.
Seattle Mariners
Season-to-date, 142 games, 5,493 PA.
A below-league-average offense across most categories this season. The bats have been heating up lately.
Power
Well Below23
Contact
Well Below14
Plate Discipline
Average52
Speed
Average50
RISP
Well Below13
Recent Form
Trending Up
Walk rate is up 23% over the team's last 10 games versus its season baseline.

What This Game Is About

Biggest Advantage

Athletics' offense is defined by being opportunistic, and this game tests whether Mariners can match it.

Swing Factor

Jeffrey Springs strikes hitters out at a 17.5% clip (21st percentile); Mariners carry a 22.5% strikeout rate.

Momentum

Athletics are trending up and Mariners are trending up over their last 10 games.

Key Matchups

Can Jeffrey Springs miss enough bats?
Jeffrey Springs strikes hitters out at a 17.5% clip (21st percentile); Mariners carry a 22.5% strikeout rate.
Edge · MarinersJeffrey Springs: 17.5% K rateMariners: 22.5% K rateHigh confidence
Can George Kirby limit Athletics' power?
Athletics rank in the 64th percentile in extra-base production, while George Kirby sits in the 16th percentile at suppressing total bases.
Edge · AthleticsAthletics: 0.352 TB/PAGeorge Kirby: 0.400 TB/PA allowed (663 PA)High confidence
How do Mariners handle left-handers?
Mariners have produced worse against left-handers this season (0.286 vs. 0.322 TB/PA overall).
Edge · Jeffrey Springsvs left-handers: 0.286 TB/PA (1748 PA)overall: 0.322 TB/PAModerate confidence
Can George Kirby miss enough bats?
George Kirby strikes hitters out at a 19.2% clip (34th percentile); Athletics carry a 21.9% strikeout rate.
Edge · AthleticsGeorge Kirby: 19.2% K rateAthletics: 21.9% K rateHigh confidence
Can Jeffrey Springs limit Mariners' power?
Mariners rank in the 23rd percentile in extra-base production, while Jeffrey Springs sits in the 3rd percentile at suppressing total bases.
Edge · MarinersMariners: 0.322 TB/PAJeffrey Springs: 0.469 TB/PA allowed (561 PA)High confidence

Pitcher Trends

Jeffrey Springs
Jeffrey Springs
Athletics · 8 starts
SP
Strikeouts2.5/start
Hits allowed5.8/start
4 or fewer Strikeouts — 5 of last 66 or fewer Hits Allowed — 5 of last 6
17% K rate
Per-start form only — opponent lineup, park, and pitch count aren't modeled.
George Kirby
George Kirby
Seattle Mariners · 8 starts
SP
Strikeouts3.8/start
Hits allowed6.1/start
4 or fewer Strikeouts — 5 of last 66+ Hits Allowed — 4 of last 6
19% K rate
Per-start form only — opponent lineup, park, and pitch count aren't modeled.

Player Trends

Alika Williams
Alika Williams
Athletics · 0.300 hit rate · 0.667 TB/PA
Heating up
recent games · 1+ hit
L55 / 5L107 / 10L2515 / 255-game hit streak
Total bases per PA is up 89% over his prior baseline, with hits in 7 of his last 8 games. He has trimmed his strikeout rate to 20%.
Cal Raleigh
Cal Raleigh
Seattle Mariners · 0.220 hit rate · 0.585 TB/PA
Heating up
recent games · 1+ hit
L55 / 5L108 / 10L2514 / 256-game hit streak
Total bases per PA is up 111% over his prior baseline, with hits in 7 of his last 9 games.
Max Muncy
Max Muncy
Athletics · 0.280 hit rate · 0.400 TB/PA
Heating up
recent games · 1+ hit
L53 / 5L107 / 10L2512 / 252-game hit streak
Hit rate is up 54% over his prior baseline, with hits in 4 of his last 7 games. He has trimmed his strikeout rate to 20%.
Julio Rodriguez
Julio Rodriguez
Seattle Mariners · 0.156 hit rate · 0.222 TB/PA
Cooling off
recent games · 1+ hit
L54 / 5L106 / 10L2515 / 25
Total bases per PA is down 39% over his prior baseline, with hits in 6 of his last 10 games. His strikeout rate has climbed to 29%.
Cole Young
Cole Young
Seattle Mariners · 0.146 hit rate · 0.195 TB/PA
Cooling off
recent games · 1+ hit
L53 / 5L105 / 10L2511 / 252-game hit streak
Total bases per PA is down 43% over his prior baseline, with hits in 4 of his last 9 games. His strikeout rate has climbed to 20%.
Taylor Ward
Taylor Ward
Seattle Mariners · 0.062 hit rate · 0.062 TB/PA
Cooling off
recent games · 1+ hit
L51 / 5L102 / 10L259 / 25
Total bases per PA is down 59% over his prior baseline, with hits in 2 of his last 9 games.

Players Positioned to Succeed

80
Jeff McNeil
Jeff McNeil
1+ Hit
Athletics
Why it stands out
Strong recent plate-appearance volume
Main risk
Lineup not yet posted
78
Henry Bolte
Henry Bolte
1+ Hit
Athletics
Why it stands out
Strong recent plate-appearance volume
Main risk
Elevated recent strikeout rate
75
Brendan Donovan
Brendan Donovan
1+ Hit
Seattle Mariners
Why it stands out
Strong recent plate-appearance volume
Main risk
Lineup not yet posted
75
Cal Raleigh
Cal Raleigh
1+ Hit
Seattle Mariners
Why it stands out
Strong recent plate-appearance volume
Main risk
Elevated recent strikeout rate
74
Zack Gelof
Zack Gelof
1+ Hit
Athletics
Why it stands out
Recent contact results are improving
Main risk
Lineup not yet posted
74
Lawrence Butler
Lawrence Butler
1+ Hit
Athletics
Why it stands out
Strong recent plate-appearance volume
Main risk
Elevated recent strikeout rate

Expected Game Shape

BalancedLow confidence

Competitive profile without a clear stylistic tilt. Athletics bring more power.

Early edge Athletics Driver No single dominant factor Volatility Moderate
  • Both probable starters grade around the 29th percentile in combined suppression.
  • Athletics are trending up; Mariners are trending up.

Storylines to Watch

Does Athletics' power tilt the game?
Athletics bring a clearly stronger extra-base profile into this matchup.
Athletics power pct 64 vs Mariners 23
Is Alika Williams the one to watch?
Alika Williams enters as Athletics' hottest bat. Total bases per PA is up 89% over his prior baseline, with hits in 7 of his last 8 games. He has trimmed his strikeout rate to 20%.
0.300 hit rate · 0.667 TB/PA · 0.237 hit rate · 0.353 TB/PA
Can Julio Rodriguez snap out of it?
Julio Rodriguez has cooled off. Total bases per PA is down 39% over his prior baseline, with hits in 6 of his last 10 games. His strikeout rate has climbed to 29%.
0.156 hit rate · 0.222 TB/PA · 0.220 hit rate · 0.365 TB/PA
Based on plate appearances before 2026-09-05, with today's posted lineups when available. Injuries, weather, bullpen availability, and park factors are not yet included.