Beta Free full access during beta. All models, tools, and daily picks included.
Game-Day Update Lineups: Projected Odds Pending 5 min read

Los Angeles Angels vs Seattle Mariners Preview

LAA at SEA 2026-09-25 preview: probable pitchers, projected lineups, NRFI/F5 model picks, weather, ballpark, and umpire context.

Los Angeles Angels at Seattle Mariners MLB game preview for September 25, 2026
LAA
Los Angeles Angels
Reid Detmers LHP
@
10:10 PM ET
T-Mobile Park
SEA
Seattle Mariners
Bryce Miller RHP
Last updated Friday, September 25, 2026

Key Facts

Matchup
Los Angeles Angels at Seattle Mariners
Date
Friday, September 25, 2026
First Pitch
10:10 PM ET
Venue
T-Mobile Park
Probable Starters
Reid Detmers (LHP) vs Bryce Miller (RHP)
Lineups
Projected
Last Updated
Sep 25, 12:23 AM ET

Betting Board

Lines not yet posted
Sportsbooks have not published markets for this matchup yet. Check back closer to first pitch, or see today's model-backed picks for games with live odds.

Model Angles

NRFI Model
Not yet available
Projected Total
TBD
Park Factor
0.95
Neutral · HR 0.92
First Pitch Weather
Roof
Climate controlled
The Los Angeles Angels visit the Seattle Mariners at 10:10 PM ET at T-Mobile Park. Probable starters: Reid Detmers for Los Angeles Angels opposite Bryce Miller for Seattle Mariners. Lineups are projected until first pitch. This preview is built deterministically from projected lineups, probable starters, odds where available, a roofed ballpark note, park factors, and TheCapperIO model context.
  • Starter matchup: Reid Detmers (Los Angeles Angels) vs Bryce Miller (Seattle Mariners).
  • Lineup status: projected until official release.
  • Park factor: 0.95 runs; venue T-Mobile Park.

Pitching Matchup

LAA Away
Reid Detmers
LHP · 6-8 · 31 GS
ERA
3.47
WHIP
1.05
K/9
10.26
IP
179.0
Career: 4.40 ERA · 1.27 WHIP · 10.06 K/9
NRFI: 79.1%
1st Inn ERA: 3.30
SEA Home
Bryce Miller
RHP · 4-9 · 20 GS
ERA
3.99
WHIP
1.15
K/9
8.95
IP
112.2
Career: 4.00 ERA · 1.13 WHIP · 8.32 K/9
NRFI: 74.2%
1st Inn ERA: 3.63

On the season, Reid Detmers holds the ERA edge in this matchup. Reid Detmers carries a 3.47 ERA and 1.05 WHIP, while Bryce Miller sits at 3.99 ERA and 1.15 WHIP.
Strikeout rates: Reid Detmers at 10.26 K/9, Bryce Miller at 8.95 K/9.
K projections: Reid Detmers at 5.1 (line 5.0)
Bryce Miller projected at 4.5 (line 4.5).
First-inning scoring: Reid Detmers holds a 79.1% career NRFI rate, Bryce Miller at 74.2%. Combined average: 76.6%.
This is a LHP vs RHP matchup, creating potential platoon advantages in both lineups.

Strikeout Projections

Reid Detmers vs SEA
Proj: 5.1Line: 5.0
+0.1
Confidence:
Bryce Miller vs LAA
Proj: 4.5Line: 4.5
0.0
Confidence:
View all K projections on SlateIQ

Our strikeout model weighs pitcher K rate, opponent lineup whiff tendency, park factors, and umpire zone size to project total strikeouts per starter.

Reid Detmers (Los Angeles Angels) is projected for 5.1 strikeouts against a posted line of 5.0. The projection is close to the line with no actionable edge.
He faces a high-K lineup that strikes out at 24.8% with a 28.0% whiff rate.

Bryce Miller (Seattle Mariners) is projected for 4.5 strikeouts against a posted line of 4.5. The projection is close to the line with no actionable edge.
He faces a high-K lineup that strikes out at 29.1% with a 28.0% whiff rate.

The Los Angeles Angels lineup is more vulnerable to strikeouts in this matchup. Seattle Mariners batters K at 24.8%, Los Angeles Angels batters at 29.1%.

Prop Edges

1 model signal detected
Home Run Elite 0.5
22.8%
See all today's picks and edges

Lineup & Matchup Breakdown

Los Angeles Angels Projected
K%: 29.1
Whiff rate: 28.0%Team page
Seattle Mariners Projected
K%: 24.8
3Cal RaleighSC
Whiff rate: 28.0%Team page
Batter vs Pitcher matchup tool

Lineups are projected as of this writing.

Los Angeles Angels K vulnerability: 29.1% strikeout rate, 28.0% whiff rate.

Seattle Mariners K vulnerability: 24.8% strikeout rate, 28.0% whiff rate.

Ballpark, Weather & Umpire

T-Mobile Park
Run Factor0.95
HR Factor0.92
Full park profile
  • T-Mobile Park carries a 0.95 run factor (neutral).
  • Home run factor: 0.92 — the park suppresses HR power.
  • Park notes: Cool maritime climate; Lower wall in right field; Retractable roof.
  • Roof: Retractable.

Climate controlled. Roof expected closed. Standard 72F conditions, no wind factor.

Home plate umpire: Not yet assigned. Umpire data will be added once the assignment is posted.

Run Projections & Total

Run projections not available for this game.

The Bottom Line
This is a data-first preview, not a pick. Check final odds once sportsbooks post markets. Confirm lineups at first pitch. Bet responsibly. 1-800-GAMBLER.
This preview is generated from thecapper.io projection models and publicly available data. All projections are model estimates, not guarantees. Gamble responsibly. If you or someone you know has a gambling problem, call 1-800-GAMBLER.