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Pittsburgh Pirates vs Chicago Cubs Preview

PIT at CHC 2026-09-12 preview: probable pitchers, projected lineups, NRFI/F5 model picks, weather, ballpark, and umpire context.

Pittsburgh Pirates at Chicago Cubs MLB game preview for September 12, 2026
PIT
Pittsburgh Pirates
Paul Skenes RHP
@
2:20 PM ET
Wrigley Field
CHC
Chicago Cubs
Clay Holmes RHP
Last updated Saturday, September 12, 2026
Final This game has finished. Read the recap for final score, model grades, and box score.

Key Facts

Matchup
Pittsburgh Pirates at Chicago Cubs
Date
Saturday, September 12, 2026
First Pitch
2:20 PM ET
Venue
Wrigley Field
Probable Starters
Paul Skenes (RHP) vs Clay Holmes (RHP)
Lineups
Confirmed
Odds Snapshot
Sep 12, 2:21 PM ET
Last Updated
Sep 12, 7:24 AM ET

Betting Board

Snapshot Sep 12, 2:21 PM ET
Moneyline
PIT +109
CHC -120
Total
Over 9.5 -105
Under 9.5 -115
Run Line
PIT +1.5 -184
CHC -1.5 +152

Model Angles

NRFI Model
NRFI · 60%
+7.7% edge · top pick
Projected Total
5.8
model combined runs
Park Factor
1.05
Neutral · HR 1.09
First Pitch Weather
87°F
12 mph SW
The Pirates and Cubs meet at Wrigley Field on Sunday afternoon with Pittsburgh carrying a 74-74 record after dropping its last game and Chicago sitting at 82-66 following a win. Paul Skenes takes the ball for the visitors with a 3.83 ERA, 1.15 WHIP, and 10.51 strikeouts per nine innings. Clay Holmes counters for the Cubs with a 2.83 ERA, 1.12 WHIP, and 6.80 strikeouts per nine. The projected total sits at 5.8 runs, split 3.0 for Pittsburgh and 2.8 for Chicago. Park factor at Wrigley is 1.05 runs, and conditions call for 86 degrees with a 10 mph southwest wind. The strikeout model projects Skenes at 3.8 against a line of 5.5, a lean to the under with seven-out-of-ten confidence. Holmes comes in at 2.6 projected strikeouts versus a 4.5 line, also pointing under at six-out-of-ten confidence. The NRFI model shows 63 percent win probability and a 5.8 percent edge on no runs in the first inning. Skenes carries a 76 percent NRFI rate across 29 first-inning starts, while Holmes sits at 80 percent over 15 first-inning starts. Wrigley has seen an average of 8.4 runs over the last ten games, with the over hitting 50 percent and the NRFI cashing 80 percent of the time. Pittsburgh's bullpen registers a 53-out-of-100 fatigue score with Khristian Curtis and Antwone Kelly unavailable. Chicago's bullpen is much more taxed at 98 out of 100. Oneil Cruz leads the Pirates' barrel parade at 23.3 percent, ahead of Konnor Griffin at 16.7 percent and Bryan Reynolds at 9.1 percent.
  • NRFI model shows 63% probability, 5.8% edge
  • Skenes strikeout projection 3.8 versus 5.5 line
  • Cubs bullpen fatigue at 98 out of 100

Pitching Matchup

PIT Away
Paul Skenes
RHP · 10-11 · 30 GS
ERA
3.78
WHIP
1.13
K/9
10.28
IP
162.0
Career: 2.57 ERA · 1.01 WHIP · 10.65 K/9
NRFI: 81.0%
1st Inn ERA: 2.95
CHC Home
Clay Holmes
RHP · 6-7 · 16 GS
ERA
2.85
WHIP
1.15
K/9
6.97
IP
91.2
Career: 3.53 ERA · 1.28 WHIP · 8.48 K/9
NRFI: 79.8%
1st Inn ERA: 2.01

On the season, Clay Holmes holds the ERA edge in this matchup. Paul Skenes carries a 3.78 ERA and 1.13 WHIP, while Clay Holmes sits at 2.85 ERA and 1.15 WHIP.
Strikeout rates: Paul Skenes at 10.28 K/9, Clay Holmes at 6.97 K/9.
K projections: Paul Skenes at 3.8 (line 5.5)
Clay Holmes projected at 2.6 (line 4.5).
First-inning scoring: Paul Skenes holds a 81.0% career NRFI rate, Clay Holmes at 79.8%. Combined average: 80.4%.
Both starters throw from the R side, limiting platoon splits for either lineup.

Strikeout Projections

Paul Skenes vs CHC
Proj: 3.8Line: 5.5
-1.7
Confidence:
Clay Holmes vs PIT
Proj: 2.6Line: 4.5
-1.9
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.

Paul Skenes (Pittsburgh Pirates) is projected for 3.8 strikeouts against a posted line of 5.5. The projection sits 1.7 K below the line, giving the model an Under lean.
He faces a moderate-K lineup that strikes out at 21.6% with a 28.0% whiff rate.

Clay Holmes (Chicago Cubs) is projected for 2.6 strikeouts against a posted line of 4.5. The projection sits 1.9 K below the line, giving the model an Under lean.
He faces a high-K lineup that strikes out at 24.9% with a 28.0% whiff rate.

The Pittsburgh Pirates lineup is more vulnerable to strikeouts in this matchup. Chicago Cubs batters K at 21.6%, Pittsburgh Pirates batters at 24.9%.

NRFI & First 5 Analysis

NRFI Model
60.1%
probability of NRFI
+7.7%
market edge
Strong Signal
Market implied: 52.4%Model: 60.1%
First 5 Innings
3.2est. F5 runs
PIT
3.78 ERA
5.4 inn/start
CHC
2.85 ERA
5.7 inn/start
F5 lean: Slight CHC
PIT K Projection
Paul Skenes
3.8proj
Line: 5.5
-1.7 UNDER
Confidence
CHC K Projection
Clay Holmes
2.6proj
Line: 4.5
-1.9 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 60.1% probability of no runs in the first inning, compared to the market's implied probability of 52.4%.

  • That creates a moderate 7.7% edge on NRFI.
  • The best available line is NRFI -110 / YRFI -110 at FanDuel.
  • This qualifies as a top pick in our publication system.
  • Home plate umpire Lance Barksdale runs a tight zone. See the umpire section below for full career data.
  • Our NRFI model sits at 154-136 (53.1%) on official picks this season.

Prop Edges

3 model signals detected
Paul Skenes
Strikeouts Under 5.5
Clay HolmesSignal
Strikeouts Under 4.5
Home Run Very Strong 0.5
13.8%
See all today's picks and edges

Lineup & Matchup Breakdown

Pittsburgh Pirates Confirmed
K%: 24.9
1Oneil CruzLCF
2Brandon LoweL2B
3Bryan ReynoldsSLF
4Konnor GriffinRSS
Whiff rate: 28.0%Team page
Chicago Cubs Confirmed
K%: 21.6
Whiff rate: 28.0%Team page
Batter vs Pitcher matchup tool

Lineups are confirmed as of this writing.

Pittsburgh Pirates K vulnerability: 24.9% strikeout rate, 28.0% whiff rate.

Chicago Cubs K vulnerability: 21.6% strikeout rate, 28.0% whiff rate.

Ballpark, Weather & Umpire

Wrigley Field
Run Factor1.05
HR Factor1.09
Full park profile
Home Plate Umpire
Lance Barksdale
Average NRFI: 28.6% 7 games
Full umpire profile
Hourly Game Forecast
87°
2 PM
12 mph
SW
87°
3 PM
11 mph
WSW
87°
4 PM
8 mph
SW
87°
5 PM
9 mph
W
  • Wrigley Field carries a 1.05 run factor (neutral).
  • Home run factor: 1.09 — the park elevates HR power.
  • Park notes: Ivy-covered left field wall; Wind factor from Lake Michigan; High wall in left (11.5ft).
  • First pitch forecast: 87F with 12 mph winds from the SW. Humidity: 43%.
  • Wind advisory: 12 mph winds from the SW may impact fly balls.
  • Home plate umpire: Lance Barksdale.
  • Career NRFI rate: 28.6% across 7 games tracked.
  • Zone tendency: Average.
  • K factor: 1.083 (above average strikeouts in his games).

Run Projections & Total

  • Our projection model puts the total at 5.8 combined runs, with Pittsburgh Pirates projected for 3.0 and Chicago Cubs for 2.8.
  • That's 3.7 runs below the posted total of 9.5, suggesting a lean toward the Under.
  • The run projection is essentially a coin flip between these two teams.
The Bottom Line
The NRFI stands out. A 63 percent win probability and 5.8 percent edge backed by Skenes' 76 percent first-inning rate and Holmes' 80 percent mark over his 15 starts gives the no-run angle real teeth, especially with Wrigley posting an 80 percent NRFI hit rate over the last ten games. The strikeout unders carry medium confidence but both projections sit well below the posted lines. Chicago's bullpen fatigue at 98 out of 100 looms as the late-inning wildcard if this game stays tight or extends past the starters.
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.