NRFI Results

First-inning leans for August 23, 2026, graded from final box scores.

All-time lean record

302-249

551 graded

55%

hit rate

NRFI

165-14553%

YRFI

137-10457%

3-3 on 6 leans

NRFI 2-2 · YRFI 1-1

NRFI Leans

4
101 logo
TOR@
103 logo
NYY1:35 PM ET
NRFI lean
Model 55%Book -135 · 54%
Jose Soriano
75% NRFI · 24 GS · 5/5 L5
TOR 1st: 22% (#30) · 18% vs hand
Carlos Rodon
70% NRFI · 10 GS · 4/5 L5
NYY 1st: 29% (#18) · 21% vs hand

Jose Soriano has kept the first inning clean in 75% of his 24 starts, including all five of his last five, and he's facing a Yankees lineup that only scores in the opening frame 21% of the time against righties. Carlos Rodon's 70% NRFI mark holds up too, with Toronto ranking dead last in MLB at 22% first-inning scoring. The model's 55% barely edges the book's 54%.

Yankee Stadium · park run factor 100
  • NRFI lean — Jose Soriano (75% NRFI) and Carlos Rodon (70%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -135 (54% implied); the model has it 55%.
  • The New York Yankees score in the first in 29% of games, 18th-most in MLB, 21% against right-handers.
  • The Toronto Blue Jays score in the first in 22% of games, 30th-most in MLB, 18% against left-handers.
130 logo
SF@
104 logo
BOS3:15 PM ET
NRFI lean
Model 56% (low)Book -136 · 54%
Matt Wilkinson
100% NRFI · 1 GS · 1/1 L5
SF 1st: 22% (#29) · 20% vs hand
Jake Bennett
100% NRFI · 14 GS · 5/5 L5
BOS 1st: 25% (#26) · 23% vs hand

Jake Bennett hasn't surrendered a first-inning run in 14 starts this season, including all five of his most recent, and he's facing a Giants offense that plates a run in the opening frame just 22% of the time — 29th in MLB. Matt Wilkinson's spotless mark comes from a single start, so the read is thin, and Fenway's 108 run factor keeps things honest, but the modest NRFI lean holds.

Fenway Park · park run factor 108
  • NRFI lean — Jake Bennett has worked a scoreless first in 100% of his starts, the headline edge in a quiet matchup.
  • Books price this NRFI at -136 (54% implied); the model has it 56%.
  • The Boston Red Sox score in the first in 25% of games, 26th-most in MLB, 23% against left-handers.
  • The San Francisco Giants score in the first in 22% of games, 29th-most in MLB, 20% against left-handers.
121 logo
CHC@
114 logo
SEA4:10 PM ET
NRFI lean
Model 58%Book -125 · 52%
Shota Imanaga
75% NRFI · 24 GS · 3/5 L5
CHC 1st: 26% (#25) · 26% vs hand
Bryce Miller
71% NRFI · 14 GS · 2/5 L5
SEA 1st: 29% (#17) · 28% vs hand

Shota Imanaga has kept the first inning clean in 75% of his 24 starts, and Bryce Miller isn't far behind at 71% across 14 — two starters who rarely stumble out of the gate. T-Mobile Park's 83 run factor only tightens things further, with Chicago's bats scoring in the opening frame just 26% of the time. The model's 58% NRFI sits six points above the book's 52%.

T-Mobile Park · park run factor 83
  • NRFI lean — Shota Imanaga (75% NRFI) and Bryce Miller (71%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -125 (52% implied); the model has it 58%.
  • The Seattle Mariners score in the first in 29% of games, 17th-most in MLB, 28% against left-handers.
  • The Chicago Cubs score in the first in 26% of games, 25th-most in MLB, 26% against right-handers.
109 logo
MIN@
129 logo
SD4:10 PM ET
NRFI lean
Model 54%Book -5 · 8%
Bailey Ober
72% NRFI · 18 GS · 3/5 L5
MIN 1st: 34% (#2) · 33% vs hand
Walker Buehler
80% NRFI · 25 GS · 4/5 L5
SD 1st: 24% (#28) · 21% vs hand

Walker Buehler has kept the first inning clean in 80% of his 25 starts, and he's drawing a Padres-friendly backdrop at Petco, where the park run factor sits at 94. Bailey Ober counters at 72% NRFI, though Minnesota's bats are the wrinkle here — they push a run across in the opening frame 34% of the time, second-most in MLB. The model's 54% scoreless read sits far above the 8% the market implies.

Petco Park · park run factor 94
  • NRFI lean — Bailey Ober (72% NRFI) and Walker Buehler (80%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -5 (8% implied); the model has it 54%.
  • The San Diego Padres score in the first in 24% of games, 28th-most in MLB, 21% against right-handers.
  • The Minnesota Twins score in the first in 34% of games, 2nd-most in MLB, 33% against right-handers.

YRFI Leans

2
110 logo
CLE@
127 logo
COL3:10 PM ET
YRFI lean
Model 41%Book +116 · 44%
Foster Griffin
79% NRFI · 24 GS · 3/5 L5
CLE 1st: 27% (#23) · 25% vs hand
Tomoyuki Sugano
52% NRFI · 21 GS · 2/5 L5
COL 1st: 34% (#3) · 38% vs hand

Coors Field inflates run scoring by 28% over league average, and Tomoyuki Sugano hasn't been the guy to suppress it — a 52% first-inning shutout rate across 21 starts, with clean openers in just two of his last five. Colorado's bats add to it, plating a run in the first 34% of the time (third-most in MLB, 38% against lefties). Foster Griffin's 79% NRFI mark is the one thing keeping this from tilting harder toward YRFI; the model's 41% scoreless sits just under the book's 44%.

Coors Field · park run factor 128
  • YRFI lean — Coors Field (run factor 128) is one of the league's most hitter-friendly parks, and the Colorado Rockies score early in 34% of games.
  • Books price this NRFI at +116 (44% implied); the model has it 41%.
  • The Colorado Rockies score in the first in 34% of games, 3rd-most in MLB, 38% against left-handers.
  • The Cleveland Guardians score in the first in 27% of games, 23rd-most in MLB, 25% against right-handers.
122 logo
CIN@
126 logo
ARI4:15 PM ET
YRFI lean
Model 47%Book -105 · 48%
Andrew Abbott
56% NRFI · 25 GS · 4/5 L5
CIN 1st: 27% (#22) · 15% vs hand
Mitch Bratt
75% NRFI · 8 GS · 4/5 L5
ARI 1st: 31% (#14) · 29% vs hand

Chase Field's 106 run factor is doing a lot of the heavy lifting here, because the arms don't scream offense: Mitch Bratt has kept the first frame clean in 75% of his eight starts, and Andrew Abbott sits at 56% across 25. Cincinnati's bats have only struck in the opening inning 15% of the time against lefties, so the 47% scoreless model number is really the ballpark nudging this toward YRFI — barely.

Chase Field · park run factor 106
  • YRFI lean — Chase Field (run factor 106) is one of the league's most hitter-friendly parks, and the Arizona Diamondbacks score early in 31% of games.
  • Books price this NRFI at -105 (48% implied); the model has it 47%.
  • The Arizona Diamondbacks score in the first in 31% of games, 14th-most in MLB, 29% against left-handers.
  • The Cincinnati Reds score in the first in 27% of games, 22nd-most in MLB, 15% against left-handers.

Coin Flips

9
125 logo
STL@
118 logo
PHI1:35 PM ET
Coin flip
Model 52%Book -135 · 54%
Kyle Leahy
87% NRFI · 23 GS · 5/5 L5
STL 1st: 32% (#11) · 33% vs hand
Cristopher Sanchez
79% NRFI · 24 GS · 5/5 L5
PHI 1st: 33% (#6) · 26% vs hand

Kyle Leahy has kept the first inning clean in 87% of his 23 starts, and Cristopher Sanchez isn't far behind at 79% — both are riding five straight scoreless openers. The counterweight: Philadelphia plates a first-inning run in 33% of games (6th-most in MLB), St. Louis in 32%, and Citizens Bank Park nudges offense up at a 102 run factor. The model's 52% scoreless sits just under the book's 54%, so there's no real separation here.

Citizens Bank Park · park run factor 102
  • Coin flip — Kyle Leahy's 87% NRFI is the case for the under; the Philadelphia Phillies' 33% first-inning bats (6th-most in MLB) are the case for the over.
  • Books price this NRFI at -135 (54% implied); the model has it 52%.
  • The Philadelphia Phillies score in the first in 33% of games, 6th-most in MLB, 26% against right-handers.
  • The St. Louis Cardinals score in the first in 32% of games, 11th-most in MLB, 33% against left-handers.
105 logo
TB@
102 logo
BAL1:35 PM ET
Coin flip
Model 51%Book -111 · 50%
Nick Martinez
83% NRFI · 23 GS · 3/5 L5
TB 1st: 32% (#8) · 29% vs hand
Shane Baz
63% NRFI · 24 GS · 4/5 L5
BAL 1st: 25% (#27) · 31% vs hand

Nick Martinez has kept the first frame clean in 83% of his 23 starts, and he draws a Baltimore lineup that puts a run on the board in the opening inning just 25% of the time — 27th in MLB. The counterweight is Shane Baz, whose 63% NRFI rate is closer to ordinary against a Rays offense that ranks 8th in first-inning scoring. Camden Yards plays neutral, and at 51% the model sits right on top of the market's 50%.

Oriole Park at Camden Yards · park run factor 100
  • Coin flip — Nick Martinez's 83% NRFI is the case for the under; the Tampa Bay Rays' 32% first-inning bats (8th-most in MLB) are the case for the over.
  • Books price this NRFI at -111 (50% implied); the model has it 51%.
  • The Baltimore Orioles score in the first in 25% of games, 27th-most in MLB, 31% against right-handers.
  • The Tampa Bay Rays score in the first in 32% of games, 8th-most in MLB, 29% against right-handers.
120 logo
WSH@
116 logo
MIA1:40 PM ET
Coin flip
Model 50% (low)Book -122 · 52%
Jackson Kent
50% NRFI · 2 GS · 1/2 L5
WSH 1st: 32% (#7) · 31% vs hand
Janson Junk
83% NRFI · 18 GS · 5/5 L5
MIA 1st: 29% (#19) · 25% vs hand

Janson Junk has kept the opening frame clean in 83% of his 18 starts, including all five of his last — a genuine anchor for the under. The catch is Jackson Kent, whose two-start sample tells us next to nothing, and Washington's bats plate a first-inning run 32% of the time, seventh-most in MLB. That tension leaves the model at 50%, essentially even with the book's implied 52%.

loanDepot park · park run factor 102
  • Coin flip — Janson Junk's 83% NRFI is the case for the under; the Washington Nationals' 32% first-inning bats (7th-most in MLB) are the case for the over.
  • Books price this NRFI at -122 (52% implied); the model has it 50%.
  • The Miami Marlins score in the first in 29% of games, 19th-most in MLB, 25% against left-handers.
  • The Washington Nationals score in the first in 32% of games, 7th-most in MLB, 31% against right-handers.
113 logo
OAK@
111 logo
HOU2:10 PM ET
Coin flip
Model 50% (low)Book -4 · 7%
Brady Basso
100% NRFI · 2 GS · 2/2 L5
OAK 1st: 29% (#16) · 31% vs hand
Cristian Javier
83% NRFI · 6 GS · 4/5 L5
HOU 1st: 33% (#5) · 21% vs hand

Brady Basso has kept the first frame clean in both of his starts, and Cristian Javier has done it in five of six — on paper, that's a tidy NRFI setup at Daikin Park, a neutral run environment. The catch is Basso's two-start sample tells you almost nothing yet, and Houston plates a first-inning run in 33% of games, fifth-most in the majors. Call it a genuine 50/50, with the book's 7% NRFI number looking wildly out of step.

Daikin Park · park run factor 100
  • Coin flip — Cristian Javier's 83% NRFI is the case for the under; the Houston Astros' 33% first-inning bats (5th-most in MLB) are the case for the over.
  • Books price this NRFI at -4 (7% implied); the model has it 50%.
  • The Houston Astros score in the first in 33% of games, 5th-most in MLB, 21% against left-handers.
  • The Oakland Athletics score in the first in 29% of games, 16th-most in MLB, 31% against right-handers.
107 logo
DET@
108 logo
KC2:10 PM ET
Coin flip
Model 48% (low)Book -108.5 · 49%
Jacob Waguespack
Jacob WaguespackRHP
No season starts
DET 1st: 33% (#4) · 29% vs hand
Daniel Lynch IV
67% NRFI · 3 GS · 2/3 L5
KC 1st: 31% (#13) · 27% vs hand

Daniel Lynch IV has kept the first inning clean in two of his three starts, but three starts isn't much to lean on — and Jacob Waguespack hasn't made one yet this season, so Detroit's side of the matchup is essentially a blank slate. The Tigers plate a first-inning run 33% of the time, fourth-most in MLB, though only 29% against lefties. At 48% scoreless in a slightly run-friendly Kauffman, it's a genuine toss-up.

Kauffman Stadium · park run factor 102
  • Coin flip — Daniel Lynch IV's 67% NRFI is the case for the under; the Detroit Tigers' 33% first-inning bats (4th-most in MLB) are the case for the over.
  • Books price this NRFI at -108.5 (49% implied); the model has it 48%.
  • The Kansas City Royals score in the first in 31% of games, 13th-most in MLB, 27% against right-handers.
  • The Detroit Tigers score in the first in 33% of games, 4th-most in MLB, 29% against left-handers.
117 logo
NYM@
106 logo
CHW2:10 PM ET
Coin flip
Model 53%Book -133.5 · 38%
Nolan McLean
75% NRFI · 24 GS · 4/5 L5
NYM 1st: 27% (#24) · 29% vs hand
Sean Newcomb
100% NRFI · 3 GS · 3/3 L5
CHW 1st: 31% (#12) · 29% vs hand

Nolan McLean has kept the first inning clean in 75% of his 24 starts, and he's facing a Mets-opposing White Sox lineup that scores in the opening frame just 29% of the time against righties. Sean Newcomb is 3-for-3 on scoreless firsts, though three starts is thin evidence to lean on. The model sees 53% scoreless against a 38% implied number — a genuine coin flip with the edge tilted toward quiet.

Rate Field · park run factor 98
  • Coin flip — Sean Newcomb's 100% NRFI is the case for the under; the Chicago White Sox's 31% first-inning bats (12th-most in MLB) are the case for the over.
  • Books price this NRFI at -133.5 (38% implied); the model has it 53%.
  • The Chicago White Sox score in the first in 31% of games, 12th-most in MLB, 29% against right-handers.
  • The New York Mets score in the first in 27% of games, 24th-most in MLB, 29% against left-handers.
112 logo
LAA@
115 logo
TEX2:35 PM ET
Coin flip
Model 52%Book -117 · 50%
Yusei Kikuchi
83% NRFI · 6 GS · 4/5 L5
LAA 1st: 34% (#1) · 35% vs hand
Cal Quantrill
89% NRFI · 9 GS · 5/5 L5
TEX 1st: 29% (#20) · 23% vs hand

Cal Quantrill has kept the first inning clean in 89% of his nine starts and all five of his last, and Yusei Kikuchi isn't far behind at 83% — yet the model still lands at 52% scoreless. The reason is the Angels, who plate a first-inning run in 34% of their games, the highest rate in MLB, and 35% against righties. Pitcher form versus the league's hottest opening bats, in a park that suppresses runs slightly (94).

Globe Life Field · park run factor 94
  • Coin flip — Cal Quantrill's 89% 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 -117 (50% implied); the model has it 52%.
  • The Texas Rangers score in the first in 29% of games, 20th-most in MLB, 23% against left-handers.
  • The Los Angeles Angels score in the first in 34% of games, the most in MLB, 35% against right-handers.
124 logo
PIT@
128 logo
LAD4:10 PM ET
Coin flip
Model 48%Book -115 · 50%
Lake Bachar
80% NRFI · 5 GS · 4/5 L5
PIT 1st: 32% (#10) · 19% vs hand
Blake Snell
67% NRFI · 3 GS · 2/3 L5
LAD 1st: 32% (#9) · 32% vs hand

Lake Bachar has kept the first inning clean in four of his last five and 80% of his starts overall, but that's a five-start sample against a Dodgers lineup that plates a first-inning run 32% of the time — ninth-most in MLB. Blake Snell counters with 67% NRFI in three outings, and Pittsburgh has scratched across an opening run just 19% of the time versus lefties. At 48% scoreless in a slightly run-friendly Dodger Stadium, it's essentially a toss-up.

Dodger Stadium · park run factor 102
  • Coin flip — Lake Bachar's 80% NRFI is the case for the under; the Pittsburgh Pirates' 32% first-inning bats (10th-most in MLB) are the case for the over.
  • Books price this NRFI at -115 (50% implied); the model has it 48%.
  • The Los Angeles Dodgers score in the first in 32% of games, 9th-most in MLB, 32% against right-handers.
  • The Pittsburgh Pirates score in the first in 32% of games, 10th-most in MLB, 19% against left-handers.
119 logo
ATL@
123 logo
MIL7:00 PM ET
Coin flip
Model 51%Book -138 · 55%
Tyler Mahle
60% NRFI · 20 GS · 3/5 L5
ATL 1st: 30% (#15) · 25% vs hand
Shane Drohan
86% NRFI · 14 GS · 4/5 L5
MIL 1st: 28% (#21) · 27% vs hand

Shane Drohan has kept the first inning clean in 86% of his 14 starts, which is the loudest number on the board — but Tyler Mahle sits at just 60% across 20 outings, and that gap is what drags this toward a true toss-up. Neither offense is scary early, with Milwaukee plating a first-inning run in 28% of games and Atlanta 30%. The model's 51% actually sits under the book's implied 55%.

Journey Bank Ballpark at Historic Bowman Field · park run factor 100
  • Coin flip — Shane Drohan's 86% NRFI is the case for the under; the Atlanta Braves' 30% first-inning bats (15th-most in MLB) are the case for the over.
  • Books price this NRFI at -138 (55% implied); the model has it 51%.
  • The Milwaukee Brewers score in the first in 28% of games, 21st-most in MLB, 27% against right-handers.
  • The Atlanta Braves score in the first in 30% of games, 15th-most in MLB, 25% against left-handers.

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

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