NRFI Results

First-inning leans for August 24, 2026, graded from final box scores.

All-time lean record

302-249

551 graded

55%

hit rate

NRFI

165-14553%

YRFI

137-10457%

4-2 on 6 leans

NRFI 2-2 · YRFI 2-0

NRFI Leans

4
104 logo
BOS@
116 logo
MIA6:40 PM ET
NRFI lean
Model 55%Book -156 · 56%
Ranger Suarez
76% NRFI · 21 GS · 5/5 L5
BOS 1st: 25% (#26) · 23% vs hand
Sandy Alcantara
85% NRFI · 26 GS · 5/5 L5
MIA 1st: 29% (#18) · 28% vs hand

Sandy Alcantara has kept the first inning clean in 85% of his 26 starts, and Ranger Suarez isn't far behind at 76% — both are riding five straight scoreless openers. Neither offense pushes back much either: Boston plates a first-inning run in just 25% of games (23% against lefties), Miami in 29%. The model's 55% NRFI sits a hair under the book's 56%, so loanDepot park's slightly above-average run factor keeps this from being a runaway lean.

loanDepot park · park run factor 102
  • NRFI lean — Ranger Suarez (76% NRFI) and Sandy Alcantara (85%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -156 (56% implied); the model has it 55%.
  • The Miami Marlins score in the first in 29% of games, 18th-most in MLB, 28% against left-handers.
  • The Boston Red Sox score in the first in 25% of games, 26th-most in MLB, 23% against right-handers.
118 logo
PHI@
114 logo
SEA9:40 PM ET
NRFI lean
Model 55%Book -160 · 58%
Zack Wheeler
86% NRFI · 21 GS · 4/5 L5
PHI 1st: 32% (#6) · 26% vs hand
Logan Gilbert
63% NRFI · 24 GS · 4/5 L5
SEA 1st: 30% (#15) · 28% vs hand

Zack Wheeler has kept the first inning clean in 86% of his 21 starts, and T-Mobile Park's 83 run factor only tightens the screws further. Seattle's offense has scored in the opening frame just 30% of the time, dropping to 28% against righties, so Wheeler's side of the ledger does most of the heavy lifting here. Gilbert's 63% NRFI rate is the softer half, which is why this leans rather than screams.

T-Mobile Park · park run factor 83
  • NRFI lean — Zack Wheeler (86% NRFI) and Logan Gilbert (63%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -160 (58% implied); the model has it 55%.
  • The Seattle Mariners score in the first in 30% of games, 15th-most in MLB, 28% against right-handers.
  • The Philadelphia Phillies score in the first in 32% of games, 6th-most in MLB, 26% against right-handers.
124 logo
PIT@
129 logo
SD9:40 PM ET
NRFI lean
Model 56%Book -130 · 53%
Braxton Ashcraft
75% NRFI · 24 GS · 4/5 L5
PIT 1st: 31% (#11) · 18% vs hand
Robbie Ray
83% NRFI · 23 GS · 5/5 L5
SD 1st: 24% (#28) · 21% vs hand

Robbie Ray has kept the first inning clean in 83% of his 23 starts, including each of his last five, and he draws a Pirates lineup that plates a first-inning run just 18% of the time against left-handers. Braxton Ashcraft counters at 75% NRFI, facing a Padres offense ranked 28th in first-inning scoring at 24%. Petco's 94 run factor nudges it further — the model's 56% sits three points above the book's 53%.

Petco Park · park run factor 94
  • NRFI lean — Braxton Ashcraft (75% NRFI) and Robbie Ray (83%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -130 (53% implied); the model has it 56%.
  • The San Diego Padres score in the first in 24% of games, 28th-most in MLB, 21% against right-handers.
  • The Pittsburgh Pirates score in the first in 31% of games, 11th-most in MLB, 18% against left-handers.
122 logo
CIN@
130 logo
SF9:45 PM ET
NRFI lean
Model 58%Book -145 · 55%
Chase Burns
91% NRFI · 23 GS · 4/5 L5
CIN 1st: 27% (#23) · 14% vs hand
Carson Whisenhunt
57% NRFI · 7 GS · 2/5 L5
SF 1st: 23% (#29) · 19% vs hand

Chase Burns has kept the first inning clean in 91% of his 23 starts, and he's drawing a Giants lineup that scores in the opening frame just 23% of the time — only 19% against righties. Carson Whisenhunt is the softer side of this, at 57% NRFI across seven starts with two clean firsts in his last five, but Oracle Park's 94 run factor helps him. Model sits at 58%, a shade past the market's 55%.

Oracle Park · park run factor 94
  • NRFI lean — Chase Burns has worked a scoreless first in 91% of his starts, the headline edge in a quiet matchup.
  • Books price this NRFI at -145 (55% implied); the model has it 58%.
  • The San Francisco Giants score in the first in 23% of games, 29th-most in MLB, 19% against right-handers.
  • The Cincinnati Reds score in the first in 27% of games, 23rd-most in MLB, 14% against left-handers.

YRFI Leans

2
115 logo
TEX@
106 logo
CHW7:40 PM ET
YRFI lean
Model 47% (low)Book -111 · 50%
Kumar Rocker
45% NRFI · 22 GS · 3/5 L5
TEX 1st: 28% (#20) · 27% vs hand
Jose Urquidy
Jose UrquidyRHP
No season starts
CHW 1st: 31% (#12) · 28% vs hand

Kumar Rocker has kept the first frame clean in only 45% of his 22 starts, and Chicago's lineup puts a run on the board in the opening inning 31% of the time — 12th-most in baseball. Jose Urquidy is the wild card, with no starts logged this season, so there's little to go on against Texas. The model's 47% scoreless sits close to the market's 50%, so the YRFI tilt is mild.

Rate Field · park run factor 98
  • YRFI lean — the Chicago White Sox push a first-inning run across in 31% of games (12th-most in MLB), hard to keep off the board early.
  • Books price this NRFI at -111 (50% implied); the model has it 47%.
  • The Chicago White Sox score in the first in 31% of games, 12th-most in MLB, 28% against right-handers.
  • The Texas Rangers score in the first in 28% of games, 20th-most in MLB, 27% against right-handers.
109 logo
MIN@
113 logo
OAK9:40 PM ET
YRFI lean
Model 38%Book +118 · 43%
Zebby Matthews
47% NRFI · 17 GS · 2/5 L5
MIN 1st: 34% (#4) · 34% vs hand
Jeffrey Springs
50% NRFI · 22 GS · 3/5 L5
OAK 1st: 29% (#17) · 29% vs hand

Sutter Health Park's 117 run factor sets a loud backdrop, and neither starter has been especially tidy out of the gate — Zebby Matthews has kept the first inning clean in just 47% of his 17 starts, with only two zeros in his last five. Minnesota's bats are the bigger lever, though: they put a run on the board in the first 34% of the time, fourth-most in the majors. The model's 38% scoreless sits under the market's 43%.

Sutter Health Park · park run factor 117
  • YRFI lean — Sutter Health Park (run factor 117) is one of the league's most hitter-friendly parks, and the Minnesota Twins score early in 34% of games.
  • Books price this NRFI at +118 (43% implied); the model has it 38%.
  • The Oakland Athletics score in the first in 29% of games, 17th-most in MLB, 29% against right-handers.
  • The Minnesota Twins score in the first in 34% of games, 4th-most in MLB, 34% against left-handers.

Coin Flips

4
105 logo
TB@
107 logo
DET6:40 PM ET
Coin flip
Model 49%Book -137.5 · 55%
Drew Rasmussen
83% NRFI · 23 GS · 5/5 L5
TB 1st: 32% (#10) · 29% vs hand
Framber Valdez
67% NRFI · 24 GS · 3/5 L5
DET 1st: 34% (#2) · 35% vs hand

Drew Rasmussen has kept the first inning clean in 83% of his 23 starts, including each of his last five — which normally screams NRFI, except Detroit's lineup puts a run on the board in the first 34% of the time, second-most in MLB. Framber Valdez counters at a more ordinary 67%, and with Comerica playing neutral, the model's 49% scoreless read sits a touch under the market's 55%.

Comerica Park · park run factor 100
  • Coin flip — Drew Rasmussen's 83% NRFI is the case for the under; the Detroit Tigers' 34% first-inning bats (2nd-most in MLB) are the case for the over.
  • Books price this NRFI at -137.5 (55% implied); the model has it 49%.
  • The Detroit Tigers score in the first in 34% of games, 2nd-most in MLB, 35% against right-handers.
  • The Tampa Bay Rays score in the first in 32% of games, 10th-most in MLB, 29% against left-handers.
127 logo
COL@
120 logo
WSH6:45 PM ET
Coin flip
Model 47%Book -122 · 52%
Ryan Feltner
63% NRFI · 19 GS · 3/5 L5
COL 1st: 33% (#5) · 29% vs hand
Cade Cavalli
77% NRFI · 26 GS · 5/5 L5
WSH 1st: 32% (#8) · 30% vs hand

Cade Cavalli has kept the first inning clean in 77% of his 26 starts and is riding a 5-for-5 stretch, which is the strongest argument for a quiet opening frame here. The pushback: both offenses rank top-10 in first-inning scoring — Colorado at 33%, Washington at 32% — and Nationals Park plays slightly hitter-friendly at a 102 run factor. The model's 47% scoreless read sits just under the book's 52%, so it's close to a toss-up.

Nationals Park · park run factor 102
  • Coin flip — Cade Cavalli's 77% NRFI is the case for the under; the Colorado Rockies' 33% first-inning bats (5th-most in MLB) are the case for the over.
  • Books price this NRFI at -122 (52% implied); the model has it 47%.
  • The Washington Nationals score in the first in 32% of games, 8th-most in MLB, 30% against right-handers.
  • The Colorado Rockies score in the first in 33% of games, 5th-most in MLB, 29% against right-handers.
110 logo
CLE@
112 logo
LAA9:38 PM ET
Coin flip
Model 53%Book -129 · 53%
Parker Messick
92% NRFI · 25 GS · 5/5 L5
CLE 1st: 28% (#21) · 26% vs hand
George Klassen
80% NRFI · 5 GS · 4/5 L5
LAA 1st: 34% (#1) · 38% vs hand

Parker Messick has kept the first inning clean in 92% of his 25 starts, including all five of his last five — but the Angels are the game's most dangerous first-inning club, plating a run 34% of the time and 38% against lefties. George Klassen's 80% mark in a small five-start sample doesn't tilt things much either way, and at 53% the model sits right on the market's number.

Angel Stadium · park run factor 102
  • Coin flip — Parker Messick's 92% NRFI is the case for the under; the Los Angeles Angels' 34% first-inning bats (most in MLB) are the case for the over.
  • Books price this NRFI at -129 (53% implied); the model has it 53%.
  • The Los Angeles Angels score in the first in 34% of games, the most in MLB, 38% against left-handers.
  • The Cleveland Guardians score in the first in 28% of games, 21st-most in MLB, 26% against right-handers.
121 logo
CHC@
126 logo
ARI9:40 PM ET
Coin flip
Model 48%Book -104 · 48%
Kevin Gausman
64% NRFI · 25 GS · 4/5 L5
CHC 1st: 26% (#25) · 25% vs hand
Merrill Kelly
65% NRFI · 23 GS · 4/5 L5
ARI 1st: 30% (#14) · 32% vs hand

Kevin Gausman and Merrill Kelly have posted nearly identical first-inning résumés — 64% and 65% NRFI respectively, each with four clean opening frames in their last five starts — which normally points toward a quiet start. What keeps it honest is Chase Field's 106 run factor and Arizona's bats, who plate a run in the first 30% of the time. The model's 48% scoreless read matches the market exactly, so there's no edge either direction.

Chase Field · park run factor 106
  • Coin flip — Merrill Kelly's 65% NRFI is the case for the under; the Arizona Diamondbacks' 30% first-inning bats (14th-most in MLB) are the case for the over.
  • Books price this NRFI at -104 (48% implied); the model has it 48%.
  • The Arizona Diamondbacks score in the first in 30% of games, 14th-most in MLB, 32% against right-handers.
  • The Chicago Cubs score in the first in 26% of games, 25th-most in MLB, 25% against right-handers.

First-inning results graded from final box scores. Verdicts are informational, not betting advice.

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