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Game-Day Update Lineups: Confirmed Odds Posted 7 min read

San Diego Padres vs San Francisco Giants Preview

SD at SF 2026-09-13 preview: probable pitchers, projected lineups, NRFI/F5 model picks, weather, ballpark, and umpire context.

San Diego Padres at San Francisco Giants MLB game preview for September 13, 2026
SD
San Diego Padres
Nick Pivetta RHP
@
7:20 PM ET
Oracle Park
SF
San Francisco Giants
Logan Webb RHP
Last updated Sunday, September 13, 2026
Final This game has finished. Read the recap for final score, model grades, and box score.

Key Facts

Matchup
San Diego Padres at San Francisco Giants
Date
Sunday, September 13, 2026
First Pitch
7:20 PM ET
Venue
Oracle Park
Probable Starters
Nick Pivetta (RHP) vs Logan Webb (RHP)
Lineups
Confirmed
Odds Snapshot
Sep 13, 7:21 PM ET
Last Updated
Sep 13, 12:26 AM ET

Betting Board

Snapshot Sep 13, 7:21 PM ET
Moneyline
SD -133
SF +126
Total
Over 7.5 +102
Under 7.5 -124
Run Line
SD -1.5 +126
SF +1.5 -152

Model Angles

NRFI Model
NRFI · 61%
+11.2% edge · top pick
Projected Total
5.0
model combined runs
Park Factor
0.93
Pitcher friendly · HR 0.86
First Pitch Weather
70°F
16.3 mph WNW
San Diego arrives at Oracle Park riding a six-game winning streak, sitting at 80-68 and still in the thick of the playoff conversation. The Giants are going the other direction. At 62-87 and losers of two straight, San Francisco has little left to play for except pride and a few more checks in the win column. Nick Pivetta takes the ball for the Padres with a 3.43 ERA, a 0.95 WHIP, and an 11.14 strikeouts-per-nine mark that suggests swing-and-miss stuff. The K model has him projected at 6.8 strikeouts against a line of 7.0, a neutral lean with medium confidence. Logan Webb counters for the home side with a 4.10 ERA and 1.15 WHIP, punching out 7.34 per nine. His K projection sits at 5.4 versus a 5.5 line, another neutral stance with low-medium confidence. Neither pitcher offers much edge in the strikeout market tonight. Oracle Park plays as a pitcher's venue with a 0.93 runs park factor, and the last ten games there have averaged 6.6 runs with the over cashing just 43 percent of the time. The NRFI has hit in six of those ten contests, a 60 percent clip. Webb himself has been stingy in the first inning, posting a 74 percent NRFI rate across 27 first-inning appearances this season. That number jumps off the page. Weather should not be a major factor, with temperatures around 70 degrees and a 17-mile-per-hour wind blowing in from the west-northwest. Both bullpens are fully rested at 100 out of 100 fatigue, though San Francisco will be without Yunior Marte. Pivetta's strikeout upside gives San Diego a slight edge on paper, but Webb's first-inning dominance and the park profile tilt the narrative toward a low-scoring early frame.
  • Padres on six-game winning streak, Giants lost two straight
  • Webb posts 74 percent NRFI rate in 27 first-inning starts
  • Oracle Park NRFI hit 60 percent over last ten games

Pitching Matchup

SD Away
Nick Pivetta
RHP · 2-2 · 5 GS
ERA
3.43
WHIP
0.95
K/9
11.14
IP
21.0
Career: 4.46 ERA · 1.26 WHIP · 9.90 K/9
NRFI: 74.9%
1st Inn ERA: 4.11
SF Home
Logan Webb
RHP · 8-8 · 26 GS
ERA
4.10
WHIP
1.15
K/9
7.34
IP
155.2
Career: 3.47 ERA · 1.19 WHIP · 8.28 K/9
NRFI: 74.6%
1st Inn ERA: 4.22

On the season, Nick Pivetta holds the ERA edge in this matchup. Nick Pivetta carries a 3.43 ERA and 0.95 WHIP, while Logan Webb sits at 4.10 ERA and 1.15 WHIP.
Strikeout rates: Nick Pivetta at 11.14 K/9, Logan Webb at 7.34 K/9.
K projections: Nick Pivetta at 4.5 (line 4.5)
Logan Webb projected at 3.1 (line 4.5).
First-inning scoring: Nick Pivetta holds a 74.9% career NRFI rate, Logan Webb at 74.6%. Combined average: 74.8%.
Both starters throw from the R side, limiting platoon splits for either lineup.

Strikeout Projections

Nick Pivetta vs SF
Proj: 4.5Line: 4.5
0.0
Confidence:
Logan Webb vs SD
Proj: 3.1Line: 4.5
-1.4
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.

Nick Pivetta (San Diego Padres) 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 24.0% with a 28.0% whiff rate.

Logan Webb (San Francisco Giants) is projected for 3.1 strikeouts against a posted line of 4.5. The projection sits 1.4 K below the line, giving the model an Under lean.
He faces a moderate-K lineup that strikes out at 23.1% with a 28.0% whiff rate.

The San Francisco Giants lineup is more vulnerable to strikeouts in this matchup. San Francisco Giants batters K at 24.0%, San Diego Padres batters at 23.1%.

NRFI & First 5 Analysis

NRFI Model
60.7%
probability of NRFI
+11.2%
market edge
Strong Signal
Market implied: 49.5%Model: 60.7%
First 5 Innings
2.8est. F5 runs
SD
3.43 ERA
4.2 inn/start
SF
4.10 ERA
6.0 inn/start
F5 lean: Slight SD
SD K Projection
Nick Pivetta
4.5proj
Line: 4.5
0.0 NEUTRAL
Confidence
SF K Projection
Logan Webb
3.1proj
Line: 4.5
-1.4 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 60.7% probability of no runs in the first inning, compared to the market's implied probability of 49.5%.

  • That creates a strong 11.2% edge on NRFI.
  • The best available line is NRFI +102 / YRFI -124 at FanDuel.
  • This qualifies as a top pick in our publication system.
  • Home plate umpire Junior Valentine runs a tight zone. See the umpire section below for full career data.
  • Our NRFI model sits at 154-138 (52.7%) on official picks this season.

Prop Edges

1 model signal detected
Logan Webb
Strikeouts Under 4.5
See all today's picks and edges

Lineup & Matchup Breakdown

San Diego Padres Confirmed
K%: 23.1
Whiff rate: 28.0%Team page
San Francisco Giants Confirmed
K%: 24.0
5Scott Bandura?DH
Whiff rate: 28.0%Team page
Batter vs Pitcher matchup tool

Lineups are confirmed as of this writing.

San Diego Padres K vulnerability: 23.1% strikeout rate, 28.0% whiff rate.

San Francisco Giants K vulnerability: 24.0% strikeout rate, 28.0% whiff rate.

Ballpark, Weather & Umpire

Oracle Park
Run Factor0.93
HR Factor0.86
Full park profile
Home Plate Umpire
Junior Valentine
Slightly tight NRFI: 50.0% 6 games
Full umpire profile
Hourly Game Forecast
70°
7 PM
16 mph
WNW
70°
8 PM
16 mph
WNW
70°
9 PM
16 mph
WNW
70°
10 PM
16 mph
WNW
  • Oracle Park carries a 0.93 run factor (pitcher-friendly).
  • Home run factor: 0.86 — the park suppresses HR power.
  • Park notes: McCovey Cove in right field; Bay breezes suppress HRs; Chilly climate.
  • First pitch forecast: 70F with 16 mph winds from the WNW. Humidity: 55%.
  • Wind advisory: 16 mph winds from the WNW may impact fly balls.
  • Home plate umpire: Junior Valentine.
  • Career NRFI rate: 50.0% across 6 games tracked.
  • Zone tendency: Slightly tight.
  • K factor: 1.005 (league average strikeouts in his games).

Run Projections & Total

  • Our projection model puts the total at 5.0 combined runs, with San Diego Padres projected for 2.4 and San Francisco Giants for 2.6.
  • That's 2.5 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 strikeout market sits flat with both projections within a tenth of the posted lines and neither model expressing conviction. Pivetta's 11.14 K/9 gives him upside, but the 6.8 projection against a 7.0 line offers no mathematical edge tonight. Webb's 5.4 versus 5.5 is even tighter. The NRFI angle carries more weight. Webb's 74 percent first-inning success rate pairs well with Oracle Park's recent 60 percent NRFI showing and a sub-1.00 park factor. The venue has stayed under 43 percent of the time in its last ten, and both bullpens are fresh. If there is a lean, it tilts toward a scoreless first frame rather than chasing total or strikeout props that the model sees as fairly priced.
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.