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San Francisco Giants vs Philadelphia Phillies Preview

San Francisco Giants vs Philadelphia Phillies preview with model projections: Adrian Houser projected 4.3 K (line 5.5), NRFI probability 56%. Full breakdown...

San Francisco Giants at Philadelphia Phillies MLB game preview for April 30, 2026
SF
San Francisco Giants
Adrian Houser ?HP
@
5:35 PM ET
Citizens Bank Park
PHI
Philadelphia Phillies
Tim Mayza ?HP
Last updated Thursday, April 30, 2026
Final This game has finished. Read the recap for final score, model grades, and box score.

Key Facts

Matchup
San Francisco Giants at Philadelphia Phillies
Date
Thursday, April 30, 2026
First Pitch
5:35 PM ET
Venue
Citizens Bank Park
Probable Starters
Adrian Houser (?HP) vs Tim Mayza (?HP)
Lineups
TBD
Odds Snapshot
Apr 30, 12:36 PM ET
Last Updated
Apr 30, 6:09 PM ET

Betting Board

Snapshot Apr 30, 12:36 PM ET
Moneyline
SF +122
PHI -134
Total
Over 6.5 -115
Under 6.5 -105
Run Line
SF +1.5 -205
PHI -1.5 +168

Model Angles

NRFI Model
NRFI · 56%
+4.5% edge
Projected Total
TBD
Park Factor
1.04
Neutral · HR 1.08
First Pitch Weather
65°F
8 mph WNW
The San Francisco Giants visit the Philadelphia Phillies at 5:35 PM ET at Citizens Bank Park. Probable starters: Adrian Houser for San Francisco Giants opposite Tim Mayza for Philadelphia Phillies. Lineups are not yet posted. This preview is built deterministically from projected lineups, probable starters, NRFI model context, market prices, first-pitch weather, park factors, and TheCapperIO model context.
  • Starter matchup: Adrian Houser (San Francisco Giants) vs Tim Mayza (Philadelphia Phillies).
  • Lineup status: not yet posted.
  • NRFI model: 56% probability, lean NRFI, +4.5% edge.

Pitching Matchup

SF Away
Adrian Houser
?HP · undefined-undefined · undefined GS
ERA
undefined
WHIP
undefined
K/9
undefined
IP
undefined
Career: undefined ERA · undefined WHIP · undefined K/9
NRFI: 72.3%
1st Inn ERA: 3.92
PHI Home
Tim Mayza
?HP · undefined-undefined · undefined GS
ERA
undefined
WHIP
undefined
K/9
undefined
IP
undefined
Career: undefined ERA · undefined WHIP · undefined K/9
  • K projections: Adrian Houser at 4.3 (line 5.5)
  • Tim Mayza projected at 4.9 (line 5.5).
  • Adrian Houser has a 72.3% career NRFI rate. No first-inning data available for Tim Mayza.
  • Both starters throw from the ? side, limiting platoon splits for either lineup.

Strikeout Projections

Adrian Houser vs PHI
Proj: 4.3Line: 5.5
-1.2
Confidence:
Tim Mayza vs SF
Proj: 4.9Line: 5.5
-0.6
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.

Adrian Houser (San Francisco Giants) is projected for 4.3 strikeouts against a posted line of 5.5. The projection is close to the line with no actionable edge.
He faces a moderate-K lineup that strikes out at 22.0% with a 28.0% whiff rate.

Tim Mayza (Philadelphia Phillies) is projected for 4.9 strikeouts against a posted line of 5.5. The projection is close to the line with no actionable edge.
He faces a moderate-K lineup that strikes out at 22.0% with a 28.0% whiff rate.

The San Francisco Giants lineup is more vulnerable to strikeouts in this matchup. Philadelphia Phillies batters K at 22.0%, San Francisco Giants batters at 22.0%.

NRFI & First 5 Analysis

NRFI Model
55.7%
probability of NRFI
+4.5%
market edge
Monitor
Market implied: 51.2%Model: 55.7%
First 5 Innings
SF
— ERA
PHI
— ERA
F5 lean: Slight PHI
SF K Projection
Adrian Houser
4.3proj
Line: 5.5
-1.2 NEUTRAL
Confidence
PHI K Projection
Tim Mayza
4.9proj
Line: 5.5
-0.6 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 55.7% probability of no runs in the first inning, compared to the market's implied probability of 51.2%.

  • That creates a slim 4.5% edge on NRFI.
  • The best available line is NRFI -105 / YRFI -115 at FanDuel.
  • Home plate umpire David Rackley runs a average zone. See the umpire section below for full career data.
  • Our NRFI model sits at 34-31 (52.3%) on official picks this season.

Prop Edges

4 model signals detected
Hits (1+) Lean Hit 0.5
67.3%
Hits (1+) Lean Hit 0.5
65.7%
Hits (1+) Lean Hit 0.5
65.1%
Home Run Elite 0.5
18.5%
See all today's picks and edges

Lineup & Matchup Breakdown

San Francisco Giants Projected
Projected batting order unavailable. This will update when probable or confirmed lineup data is available.
Philadelphia Phillies Projected
Projected batting order unavailable. This will update when probable or confirmed lineup data is available.
Batter vs Pitcher matchup tool

Lineups are unavailable as of this writing.

Ballpark, Weather & Umpire

Citizens Bank Park
Run Factor1.04
HR Factor1.08
Full park profile
Home Plate Umpire
David Rackley
Average NRFI: 52.7% 93 games
Full umpire profile
Hourly Game Forecast
65°
5 PM
8 mph
WNW
63°
6 PM
6 mph
WNW
58°
7 PM
10 mph
WNW
58°
8 PM
10 mph
WNW
  • Citizens Bank Park carries a 1.04 run factor (neutral).
  • Home run factor: 1.08 — the park elevates HR power.
  • Park notes: Short left field porch (329ft); Elevated playing surface; Art Deco design.
  • First pitch forecast: 64F with 8 mph winds from the WNW. Humidity: 49%.
  • Temperature drops from 64F at first pitch to 58F by the late innings.
  • Home plate umpire: David Rackley.
  • Career NRFI rate: 52.7% across 93 games tracked.
  • Zone tendency: Average.
  • K factor: 1.024 (above average strikeouts in his games).

Run Projections & Total

Run projections not available for this game.

The Bottom Line
This is a data-first preview, not a pick. Treat the NRFI model signal as context alongside the pitching matchup. Verify current odds before placing any bet. 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.