Cleveland Guardians vs Baltimore Orioles Preview on Wednesday, September 9, 2026

The Guardians arrive at Camden Yards having snapped a losing streak and sit four games over.500 at 74-72. Baltimore counters at 70-76 following a one-game slide. Neither club is racing anywhere, but the pitching matchup offers enough intrigue to keep the total parked at 5.4 runs. Foster Griffin takes the ball for Cleveland with a 3.26 ERA and 1.14 WHIP, solid command numbers for a lefty working in relief and spot-start duty this season. His 7.97 strikeouts per nine innings suggest modest swing-and-miss upside, and the K model projects him for just 3.3 punchouts tonight against a line of 5.5. That's a two-plus-strikeout gap, good enough for an Under lean at medium confidence. Shane Baz counters for the Orioles with a 3.91 ERA, a 1.33 WHIP, and nearly identical strikeout rate at 7.99 per nine. His projection sits at 3.8 against a posted 4.5, landing him in neutral territory with the same 5-out-of-10 confidence. Neither arm profiles as a high-volume strikeout artist, and both bullpens are fully rested at 100 fatigue. The NRFI shows a 56 percent probability with a 1.0 percent edge, bolstered by Griffin's 64 percent first-inning scoreless rate across 28 games and Baz's 67 percent mark in 30. Recent park trends skew the other way: over the last ten contests at Camden Yards, teams have averaged 11.2 runs per game, the Over has cashed 80 percent of the time, and NRFI has still hit 60 percent. Weather is warm at 89 degrees with an 11-mile-per-hour southerly breeze, and the park factor stands at a neutral 1.03 runs. On the bat side, José Ramírez leads the matchup sheet with a 15.5 percent barrel rate, followed by Angel Genao at 11.2 percent and Nathaniel Lowe at 10.3 percent. Cleveland is projected for 2.6 runs, Baltimore for 2.8.

Foster Griffin's strikeout projection sits 2.2 below posted line
NRFI model shows 56 percent win probability, 1.0 percent edge
Camden Yards has gone Over 80 percent last ten games

Pitching Matchup

CLE Away

Foster Griffin

LHP · 15-4 · 28 GS

ERA

3.26

WHIP

1.14

K/9

7.97

160.1

Career: 3.42 ERA · 1.16 WHIP · 7.86 K/9

NRFI: 80.0%

1st Inn ERA: 3.60

BAL Home

Shane Baz

RHP · 5-15 · 28 GS

ERA

3.91

WHIP

1.33

K/9

7.99

163.1

Career: 4.13 ERA · 1.27 WHIP · 8.77 K/9

NRFI: 70.1%

1st Inn ERA: 4.97

On the season, Foster Griffin holds the ERA edge in this matchup. Foster Griffin carries a 3.26 ERA and 1.14 WHIP, while Shane Baz sits at 3.91 ERA and 1.33 WHIP.
Strikeout rates: Foster Griffin at 7.97 K/9, Shane Baz at 7.99 K/9.
K projections: Foster Griffin at 3.4 (line 5.5)
Shane Baz projected at 3.8 (line 4.5).
First-inning scoring: Foster Griffin holds a 80.0% career NRFI rate, Shane Baz at 70.1%. Combined average: 75.0%.
This is a LHP vs RHP matchup, creating potential platoon advantages in both lineups.

Strikeout Projections

Foster Griffin vs BAL

Proj: 3.4Line: 5.5

-2.1

Confidence:

Shane Baz vs CLE

Proj: 3.8Line: 4.5

-0.7

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.

Foster Griffin (Cleveland Guardians) is projected for 3.4 strikeouts against a posted line of 5.5. The projection sits 2.1 K below the line, giving the model an Under lean.
He faces a high-K lineup that strikes out at 28.0% with a 28.0% whiff rate.

Shane Baz (Baltimore Orioles) is projected for 3.8 strikeouts against a posted line of 4.5. The projection is close to the line with no actionable edge.
He faces a moderate-K lineup that strikes out at 21.2% with a 28.0% whiff rate.

The Baltimore Orioles lineup is more vulnerable to strikeouts in this matchup. Baltimore Orioles batters K at 28.0%, Cleveland Guardians batters at 21.2%.

NRFI & First 5 Analysis

NRFI Model

57.2%

probability of NRFI

+3.9%

market edge

Signal

Market implied: 53.3%Model: 57.2%

First 5 Innings

3.0est. F5 runs

CLE

3.26 ERA

5.7 inn/start

BAL

3.91 ERA

5.8 inn/start

F5 lean: Slight CLE

CLE K Projection

Foster Griffin

3.4proj

Line: 5.5

-2.1 UNDER

Confidence

BAL K Projection

Shane Baz

3.8proj

Line: 4.5

-0.7 NEUTRAL

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 57.2% probability of no runs in the first inning, compared to the market's implied probability of 53.3%.

That creates a slim 3.9% edge on NRFI.
The best available line is NRFI -114 / YRFI -106 at FanDuel.
This qualifies as a playable in our publication system.

Home plate umpire David Rackley runs a wide zone. See the umpire section below for full career data.
Our NRFI model sits at 150-133 (53.0%) on official picks this season.

Prop Edges

2 model signals detected

Foster GriffinSignal

Strikeouts Under 5.5

Jo AdellStrong Signal

Home Run Elite 0.5

15.2%

See all today's picks and edges

Lineup & Matchup Breakdown

Cleveland Guardians Confirmed

K%: 21.2

1Steven KwanLCF

2Chase DeLauterLRF

3José RamírezS3B

4Jo AdellRLF

5Travis BazzanaLDH

6Nathaniel LoweL1B

7Angel GenaoS2B

8Patrick BaileySC

9Brayan RocchioSSS

Whiff rate: 28.0%Team page

Baltimore Orioles Confirmed

K%: 28.0

1Dylan BeaversLLF

2Pete AlonsoR1B

3Coby MayoRDH

4Christian Encarnacion-StrandR3B

5Jackson HollidayLSS

6Rece HindsRCF

7Jeremiah JacksonR2B

8Leody TaverasSRF

9Carlos NarváezRC

Whiff rate: 28.0%Team page

Batter vs Pitcher matchup tool

Lineups are confirmed as of this writing.

Cleveland Guardians K vulnerability: 21.2% strikeout rate, 28.0% whiff rate.

Baltimore Orioles K vulnerability: 28.0% strikeout rate, 28.0% whiff rate.

Ballpark, Weather & Umpire

Oriole Park at Camden Yards

Run Factor1.03

HR Factor1.08

Full park profile

Home Plate Umpire

David Rackley

Average NRFI: 42.9% 7 games

Full umpire profile

Hourly Game Forecast

89°

6 PM

11 mph

85°

7 PM

10 mph

85°

8 PM

10 mph

85°

9 PM

10 mph

Oriole Park at Camden Yards carries a 1.03 run factor (neutral).
Home run factor: 1.08 — the park elevates HR power.
Park notes: Left field wall angles away; Narrow left field alley; Elevated field area.

First pitch forecast: 88F with 11 mph winds from the S. Humidity: 43%.
Temperature drops from 88F at first pitch to 85F by the late innings.
Wind advisory: 11 mph winds from the S may impact fly balls.

Home plate umpire: David Rackley.
Career NRFI rate: 42.9% across 7 games tracked.
Zone tendency: Average.
K factor: 1.006 (league average strikeouts in his games).

Run Projections & Total

Our projection model puts the total at 5.4 combined runs, with Cleveland Guardians projected for 2.6 and Baltimore Orioles for 2.8.
That's 3.1 runs below the posted total of 8.5, suggesting a lean toward the Under.
The run projection is essentially a coin flip between these two teams.

The Bottom Line

The Griffin strikeout Under is the cleanest look in this matchup, with a 3.3 projection sitting more than two punchouts beneath the 5.5 line. That gap is material, and the confidence sits at medium rather than high for good reason: Griffin's K rate hovers below eight per nine, so the projection reflects his profile. The NRFI edge is tiny at 1.0 percent, but both pitchers carry strong first-inning track records and the full-game total is low. The risk is in the recent park trend, where Camden Yards has seen Overs cash four times in five and run totals balloon to 11.2 per game. Still, the projection model has this contest landing near 5.4 runs, well below the park's recent pace. Both bullpens are fresh, so late-inning relief won't be a fatigue concern. The strikeout Under on Griffin is the focused play.

Today's picks Model projections SlateIQ

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.

Cleveland Guardians vs Baltimore Orioles Preview

Key Facts

Betting Board

Model Angles

Pitching Matchup

Strikeout Projections

NRFI & First 5 Analysis

Prop Edges

Lineup & Matchup Breakdown

Ballpark, Weather & Umpire

Run Projections & Total

Key Facts

Betting Board

Model Angles

Pitching Matchup

Strikeout Projections

NRFI & First 5 Analysis

Prop Edges

Lineup & Matchup Breakdown

Ballpark, Weather & Umpire

Run Projections & Total

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