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Early Preview Lineups: Projected Odds Posted 8 min read

Seattle Mariners vs Los Angeles Angels Preview

SEA at LAA 2026-09-14 preview: probable pitchers, projected lineups, NRFI/F5 model picks, weather, ballpark, and umpire context.

Seattle Mariners at Los Angeles Angels MLB game preview for September 14, 2026
SEA
Seattle Mariners
Kade Anderson LHP
@
9:38 PM ET
Angel Stadium
LAA
Los Angeles Angels
Reid Detmers LHP
Last updated Monday, September 14, 2026
Final This game has finished. Read the recap for final score, model grades, and box score.

Key Facts

Matchup
Seattle Mariners at Los Angeles Angels
Date
Monday, September 14, 2026
First Pitch
9:38 PM ET
Venue
Angel Stadium
Probable Starters
Kade Anderson (LHP) vs Reid Detmers (LHP)
Lineups
Projected
Odds Snapshot
Sep 14, 9:39 PM ET
Last Updated
Sep 14, 6:21 PM ET

Betting Board

Snapshot Sep 14, 9:39 PM ET
Moneyline
SEA -106
LAA -104
Total
Over 7.5 -105
Under 7.5 -115
Run Line
SEA -1.5 +152
LAA +1.5 -184

Model Angles

NRFI Model
NRFI · 58%
+7.3% edge
Projected Total
5.2
model combined runs
Park Factor
0.97
Neutral · HR 0.94
First Pitch Weather
75°F
7.1 mph SW
The Mariners and Angels close their series Wednesday night at Angel Stadium with two left-handers on the mound and a model projection that leans heavily toward a scoreless first inning. Reid Detmers takes the ball for Los Angeles with a 3.32 ERA, a 1.04 WHIP, and 10.23 strikeouts per nine innings. That WHIP stands out. Detmers has posted a 77 percent NRFI rate over 31 first-inning starts this season, the sort of track record that makes the opening frame a legitimate angle. Seattle counters with Kade Anderson, whose 4.29 ERA and 1.38 WHIP paint a less dominant picture. Anderson strikes out just 6.86 per nine, nearly four strikeouts below Detmers. The gap is real. The NRFI model gives it a 58 percent probability and a 7.2 percent edge. That edge is substantial. Angel Stadium has hit the NRFI in five of the past ten games, a clean 50 percent clip, and the park factor sits at 0.97 runs, neutral to slightly pitcher-friendly. The projected total is 5.2, with Seattle at 2.7 and the Angels at 2.5. Low scoring environment, no wind to speak of, and Detmers anchoring the side that matters most. The Mariners carry a 70-80 record and lost their last game. The Angels are 56-93 and riding a three-game losing streak. Neither lineup is clicking, and neither bullpen is fresh. Seattle's relievers register a 92 out of 100 fatigue score, the Angels an 84. Both staffs are gassed, but that only reinforces the case for leaning on the starters early. Seattle does show a few bats with thump. Dominic Canzone posts an 18.8 percent barrel rate, Randy Arozarena a 12.7 percent mark, and Julio Rodríguez an 8.7 percent clip. Those numbers offer some punch, but Anderson's peripherals and Detmers's first-inning history tilt the balance toward a clean opening frame. The K model projects Detmers at 5.0 strikeouts against a 6.5 line, a lean to the under with seven out of ten confidence. Anderson projects at 3.1 strikeouts versus a 5.5 line, also under, but with lower confidence at five out of ten. Both starters are forecast to fall short of their posted totals, and the NRFI sits as the sharpest angle in the matchup.
  • NRFI model shows 58 percent probability, 7.2 percent edge
  • Detmers 77 percent NRFI rate over 31 first-inning starts
  • Both K projections lean under posted strikeout totals

Pitching Matchup

SEA Away
Kade Anderson
LHP · 1-1 · 4 GS
ERA
4.29
WHIP
1.38
K/9
6.86
IP
21.0
Career: 4.29 ERA · 1.38 WHIP · 6.86 K/9
LAA Home
Reid Detmers
LHP · 5-8 · 29 GS
ERA
3.32
WHIP
1.04
K/9
10.23
IP
168.0
Career: 4.37 ERA · 1.27 WHIP · 10.04 K/9
NRFI: 78.2%
1st Inn ERA: 3.44

On the season, Reid Detmers holds the ERA edge in this matchup. Kade Anderson carries a 4.29 ERA and 1.38 WHIP, while Reid Detmers sits at 3.32 ERA and 1.04 WHIP.
Strikeout rates: Kade Anderson at 6.86 K/9, Reid Detmers at 10.23 K/9.
K projections: Kade Anderson at 3.1 (line 5.5)
Reid Detmers projected at 5.0 (line 6.5).
Reid Detmers has a 78.2% career NRFI rate. No first-inning data available for Kade Anderson.
Both starters throw from the L side, limiting platoon splits for either lineup.

Strikeout Projections

Kade Anderson vs LAA
Proj: 3.1Line: 5.5
-2.4
Confidence:
Reid Detmers vs SEA
Proj: 5.0Line: 6.5
-1.5
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.

Kade Anderson (Seattle Mariners) is projected for 3.1 strikeouts against a posted line of 5.5. The projection sits 2.4 K below the line, giving the model an Under lean.
He faces a high-K lineup that strikes out at 29.4% with a 28.0% whiff rate.

Reid Detmers (Los Angeles Angels) is projected for 5.0 strikeouts against a posted line of 6.5. The projection sits 1.5 K below the line, giving the model an Under lean.
He faces a moderate-K lineup that strikes out at 23.7% with a 28.0% whiff rate.

The Los Angeles Angels lineup is more vulnerable to strikeouts in this matchup. Los Angeles Angels batters K at 29.4%, Seattle Mariners batters at 23.7%.

NRFI & First 5 Analysis

NRFI Model
58.5%
probability of NRFI
+7.3%
market edge
Monitor
Market implied: 51.2%Model: 58.5%
First 5 Innings
2.9est. F5 runs
SEA
4.29 ERA
5.3 inn/start
LAA
3.32 ERA
5.8 inn/start
F5 lean: Slight LAA
SEA K Projection
Kade Anderson
3.1proj
Line: 5.5
-2.4 UNDER
Confidence
LAA K Projection
Reid Detmers
5.0proj
Line: 6.5
-1.5 UNDER
Confidence
Explore all model projections

Our NRFI model analyzes both starting pitchers' first-inning profiles, the top-of-order hitters in each lineup, the umpire's historical zone, and environmental factors to produce a probability estimate. For this game, the model assigns a 58.5% probability of no runs in the first inning, compared to the market's implied probability of 51.2%.

  • That creates a moderate 7.2% edge on NRFI.
  • The best available line is NRFI -105 / YRFI -115 at FanDuel.

The home plate umpire for this game has not yet been assigned. MLB typically posts assignments the morning of game day. Umpire data will be added automatically once the assignment is posted.
Our NRFI model sits at 155-143 (52.0%) on official picks this season.

Prop Edges

3 model signals detected
Reid Detmers
Strikeouts Under 6.5
Kade Anderson
Strikeouts Under 5.5
Cal RaleighStrong Signal
Home Run Elite 0.5
22.8%
See all today's picks and edges

Lineup & Matchup Breakdown

Seattle Mariners Projected
K%: 23.7
1Julio RodríguezRCF
2Dominic CanzoneLDH
3Randy ArozarenaRLF
4Cal RaleighSC
Whiff rate: 28.0%Team page
Los Angeles Angels Projected
K%: 29.4
Whiff rate: 28.0%Team page
Batter vs Pitcher matchup tool

Lineups are projected as of this writing.

Seattle Mariners K vulnerability: 23.7% strikeout rate, 28.0% whiff rate.

Los Angeles Angels K vulnerability: 29.4% strikeout rate, 28.0% whiff rate.

Ballpark, Weather & Umpire

Angel Stadium
Run Factor0.97
HR Factor0.94
Full park profile
Hourly Game Forecast
75°
9 PM
7 mph
SW
72°
10 PM
7 mph
SW
70°
11 PM
6 mph
SSW
69°
12 AM
5 mph
SSW
  • Angel Stadium carries a 0.97 run factor (neutral).
  • Home run factor: 0.94 — the park suppresses HR power.
  • Park notes: Warm California weather; High walls in outfield; Wind tunnel from canyon.
  • First pitch forecast: 75F with 7 mph winds from the SW. Humidity: 67%.
  • Temperature drops from 75F at first pitch to 69F by the late innings.

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

Run Projections & Total

  • Our projection model puts the total at 5.2 combined runs, with Seattle Mariners projected for 2.7 and Los Angeles Angels for 2.5.
  • That's 2.3 runs below the posted total of 7.5, suggesting a lean toward the Under.
  • The run projection is essentially a coin flip between these two teams.
The Bottom Line
The NRFI is the headline bet here. A 58 percent probability and a 7.2 percent edge over the posted price make it the cleanest look in this matchup. Detmers brings a 77 percent NRFI rate across 31 starts, a 3.32 ERA, and a 1.04 WHIP into a neutral park against a Seattle lineup that has gone quiet. Anderson's 4.29 ERA and 1.38 WHIP give up more contact, but the projected total sits at just 5.2 runs, and the Angels offense has been anemic. Both K projections lean under, Detmers with higher confidence, but the NRFI edge is larger and more grounded in Detmers's first-inning track record. The risk is Seattle's barrel-rate trio, but the model and the history point the same direction.
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.