NRFI Results

First-inning leans for August 21, 2026, graded from final box scores.

All-time lean record

302-249

551 graded

55%

hit rate

NRFI

165-14553%

YRFI

137-10457%

4-3 on 7 leans

NRFI 3-3 · YRFI 1-0

NRFI Leans

6
119 logo
ATL@
123 logo
MIL4:10 PM ET
NRFI lean
Model 57%Book -196 · 63%
Chris Sale
86% NRFI · 21 GS · 4/5 L5
ATL 1st: 29% (#16) · 28% vs hand
Jacob Misiorowski
86% NRFI · 22 GS · 5/5 L5
MIL 1st: 28% (#20) · 34% vs hand

Chris Sale and Jacob Misiorowski each carry an identical 86% first-inning scoreless rate, and both have been locked in lately — Sale at 4-of-5, Misiorowski a perfect 5-of-5 over his last five. Neither offense does much early either, with Milwaukee at 28% and Atlanta at 29%, so the pitching-friendly 94 park factor only reinforces the NRFI lean here.

American Family Field · park run factor 94
  • NRFI lean — Chris Sale (86% NRFI) and Jacob Misiorowski (86%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -196 (63% implied); the model has it 57%.
  • The Milwaukee Brewers score in the first in 28% of games, 20th-most in MLB, 34% against left-handers.
  • The Atlanta Braves score in the first in 29% of games, 16th-most in MLB, 28% against right-handers.
125 logo
STL@
118 logo
PHI6:40 PM ET
NRFI lean
Model 53%Book -129 · 36%
Hunter Dobbins
86% NRFI · 7 GS · 5/5 L5
STL 1st: 31% (#12) · 31% vs hand
Jesus Luzardo
96% NRFI · 24 GS · 5/5 L5
PHI 1st: 32% (#8) · 27% vs hand

Jesus Luzardo has kept the first frame clean in a remarkable 96% of his 24 starts, and he's put up five straight scoreless firsts. On the other side, Hunter Dobbins matches that recent streak with a 86% NRFI rate. Neither offense scores early often — Philadelphia at 27% versus righties, St. Louis at 31% versus lefties — nudging this toward a scoreless first despite the hitter-friendly park factor of 102.

Citizens Bank Park · park run factor 102
  • NRFI lean — Hunter Dobbins (86% NRFI) and Jesus Luzardo (96%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -129 (36% implied); the model has it 53%.
  • The Philadelphia Phillies score in the first in 32% of games, 8th-most in MLB, 27% against right-handers.
  • The St. Louis Cardinals score in the first in 31% of games, 12th-most in MLB, 31% against left-handers.
101 logo
TOR@
103 logo
NYY7:05 PM ET
NRFI lean
Model 56%Book -137 · 54%
Mason Fluharty
67% NRFI · 3 GS · 2/3 L5
TOR 1st: 22% (#30) · 24% vs hand
Cam Schlittler
84% NRFI · 25 GS · 4/5 L5
NYY 1st: 29% (#17) · 37% vs hand

Cam Schlittler is the anchor here, sitting on an 84% NRFI mark across 25 starts and posting a clean first frame in four of his last five. It helps that Toronto's bats rank dead last in first-inning scoring at just 22%, and only 24% against righties. With Fluharty's smaller sample holding steady too, the model's 56% scoreless edge feels earned.

Yankee Stadium · park run factor 100
  • NRFI lean — Mason Fluharty (67% NRFI) and Cam Schlittler (84%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -137 (54% implied); the model has it 56%.
  • The New York Yankees score in the first in 29% of games, 17th-most in MLB, 37% against left-handers.
  • The Toronto Blue Jays score in the first in 22% of games, 30th-most in MLB, 24% against right-handers.
130 logo
SF@
104 logo
BOS7:10 PM ET
NRFI lean
Model 55%Book -157 · 57%
Logan Webb
81% NRFI · 21 GS · 4/5 L5
SF 1st: 22% (#29) · 19% vs hand
Sonny Gray
73% NRFI · 22 GS · 5/5 L5
BOS 1st: 26% (#26) · 25% vs hand

Logan Webb's 81% NRFI over 21 starts anchors this lean, and he's stretched it to 4 of his last 5. Sonny Gray answers with a spotless 5-for-5 first-inning run in his recent outings, facing a Giants lineup that scores in the opening frame just 19% of the time against righties. Fenway's 108 park factor keeps it from being a stronger NRFI.

Fenway Park · park run factor 108
  • NRFI lean — Logan Webb (81% NRFI) and Sonny Gray (73%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -157 (57% implied); the model has it 55%.
  • The Boston Red Sox score in the first in 26% of games, 26th-most in MLB, 25% against right-handers.
  • The San Francisco Giants score in the first in 22% of games, 29th-most in MLB, 19% against right-handers.
105 logo
TB@
102 logo
BAL7:15 PM ET
NRFI lean
Model 54%Book -122 · 51%
Freddy Peralta
71% NRFI · 24 GS · 2/5 L5
TB 1st: 33% (#7) · 30% vs hand
Trevor Rogers
86% NRFI · 22 GS · 5/5 L5
BAL 1st: 25% (#27) · 30% vs hand

Trevor Rogers has been airtight early, posting an 86% first-inning shutout rate across 22 starts and cleared all five of his last five. He faces a Rays offense that plates a first-inning run just 30% of the time against left-handers. Freddy Peralta's 71% NRFI mark rounds out a matchup that tilts toward a quiet opening frame in Baltimore.

Oriole Park at Camden Yards · park run factor 100
  • NRFI lean — Freddy Peralta (71% NRFI) and Trevor Rogers (86%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -122 (51% implied); the model has it 54%.
  • The Baltimore Orioles score in the first in 25% of games, 27th-most in MLB, 30% against right-handers.
  • The Tampa Bay Rays score in the first in 33% of games, 7th-most in MLB, 30% against left-handers.
121 logo
CHC@
114 logo
SEA10:10 PM ET
NRFI lean
Model 58%Book -125 · 52%
Matthew Boyd
71% NRFI · 14 GS · 3/5 L5
CHC 1st: 26% (#25) · 25% vs hand
Emerson Hancock
76% NRFI · 21 GS · 3/5 L5
SEA 1st: 29% (#19) · 26% vs hand

Emerson Hancock's 76% first-inning shutout rate across 21 starts anchors this NRFI lean, and Matthew Boyd matches him well at 71% over 14 outings. Neither offense does much early either — the Cubs plate a run in the first just 26% of the time, the Mariners 29% — and T-Mobile Park's run factor of 83 only tightens things further.

T-Mobile Park · park run factor 83
  • NRFI lean — Matthew Boyd (71% NRFI) and Emerson Hancock (76%) 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, 19th-most in MLB, 26% against left-handers.
  • The Chicago Cubs score in the first in 26% of games, 25th-most in MLB, 25% against right-handers.

YRFI Leans

1
110 logo
CLE@
127 logo
COL8:40 PM ET
YRFI lean
Model 43%Book +110 · 45%
Joey Cantillo
76% NRFI · 25 GS · 3/5 L5
CLE 1st: 27% (#22) · 26% vs hand
Tanner Gordon
60% NRFI · 5 GS · 3/5 L5
COL 1st: 33% (#5) · 36% vs hand

Coors Field is doing the heavy lifting here, with its 128 run factor tilting things toward a run crossing early. Tanner Gordon's modest 60% NRFI mark over five starts doesn't inspire much first-inning confidence, and Colorado's bats score in the opening frame 36% of the time against lefties like Joey Cantillo. Even Cantillo's strong 76% NRFI rate gets tested in this environment, nudging the lean toward YRFI.

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 33% of games.
  • Books price this NRFI at +110 (45% implied); the model has it 43%.
  • The Colorado Rockies score in the first in 33% of games, 5th-most in MLB, 36% against left-handers.
  • The Cleveland Guardians score in the first in 27% of games, 22nd-most in MLB, 26% against right-handers.

Coin Flips

8
120 logo
WSH@
116 logo
MIA7:10 PM ET
Coin flip
Model 49%Book -132 · 53%
Brad Lord
67% NRFI · 3 GS · 2/3 L5
WSH 1st: 33% (#6) · 33% vs hand
Ryan Gusto
73% NRFI · 11 GS · 4/5 L5
MIA 1st: 28% (#21) · 29% vs hand

Ryan Gusto's 73% first-inning shutout rate over 11 starts is the sturdiest number on the board, and the Marlins' bats plate a run in the first just 28% of the time. But Washington's lineup is more dangerous, ranking sixth in MLB at scoring early and doing it 33% against righties like Brad Lord. That tug-of-war lands this one squarely at a coin flip.

loanDepot park · park run factor 102
  • Coin flip — Ryan Gusto's 73% NRFI is the case for the under; the Washington Nationals' 33% first-inning bats (6th-most in MLB) are the case for the over.
  • Books price this NRFI at -132 (53% implied); the model has it 49%.
  • The Miami Marlins score in the first in 28% of games, 21st-most in MLB, 29% against right-handers.
  • The Washington Nationals score in the first in 33% of games, 6th-most in MLB, 33% against right-handers.
117 logo
NYM@
106 logo
CHW7:40 PM ET
Coin flip
Model 51%Book -141 · 55%
Sean Manaea
67% NRFI · 12 GS · 5/5 L5
NYM 1st: 27% (#24) · 25% vs hand
Sean Burke
75% NRFI · 20 GS · 4/5 L5
CHW 1st: 32% (#9) · 33% vs hand

Sean Burke's 75% first-inning zero rate over 20 starts headlines this one, and he's backed by Manaea, who's carried a scoreless first in five straight. The bats don't push back much either — the Mets score in the opening frame just 27% of the time. Even so, the White Sox rank ninth in MLB for first-inning offense, which keeps this closer to a coin flip at 51%.

Rate Field · park run factor 98
  • Coin flip — Sean Burke's 75% NRFI is the case for the under; the Chicago White Sox's 32% first-inning bats (9th-most in MLB) are the case for the over.
  • Books price this NRFI at -141 (55% implied); the model has it 51%.
  • The Chicago White Sox score in the first in 32% of games, 9th-most in MLB, 33% against left-handers.
  • The New York Mets score in the first in 27% of games, 24th-most in MLB, 25% against right-handers.
113 logo
OAK@
111 logo
HOU8:10 PM ET
Coin flip
Model 50%Book -120 · 52%
J.T. Ginn
82% NRFI · 22 GS · 4/5 L5
OAK 1st: 30% (#15) · 32% vs hand
Hayden Wesneski
75% NRFI · 4 GS · 3/4 L5
HOU 1st: 34% (#3) · 37% vs hand

J.T. Ginn brings an elite 82% first-inning shutout rate into Daikin Park, but he'll face a Houston lineup that plates a run in the opening frame 34% of the time — third-most in MLB and 37% against righties. That tension is exactly why this one splits down the middle at 50%, right in line with the book's 52% NRFI read.

Daikin Park · park run factor 100
  • Coin flip — J.T. Ginn's 82% NRFI is the case for the under; the Houston Astros' 34% first-inning bats (3rd-most in MLB) are the case for the over.
  • Books price this NRFI at -120 (52% implied); the model has it 50%.
  • The Houston Astros score in the first in 34% of games, 3rd-most in MLB, 37% against right-handers.
  • The Oakland Athletics score in the first in 30% of games, 15th-most in MLB, 32% against right-handers.
107 logo
DET@
108 logo
KC8:10 PM ET
Coin flip
Model 49%Book -125 · 52%
Troy Melton
64% NRFI · 14 GS · 4/5 L5
DET 1st: 34% (#2) · 30% vs hand
Noah Cameron
83% NRFI · 23 GS · 5/5 L5
KC 1st: 31% (#10) · 28% vs hand

Noah Cameron has been elite in openers for Kansas City, holding an 83% NRFI mark across 23 starts and slamming the door in his last five. The tension is Detroit's bats, who plate a first-inning run in 34% of games — second-most in MLB — though only 30% against lefties. With Melton solid at 64% NRFI, it's a genuine toss-up at 49%.

Kauffman Stadium · park run factor 102
  • Coin flip — Noah Cameron'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 -125 (52% implied); the model has it 49%.
  • The Kansas City Royals score in the first in 31% of games, 10th-most in MLB, 28% against right-handers.
  • The Detroit Tigers score in the first in 34% of games, 2nd-most in MLB, 30% against left-handers.
112 logo
LAA@
115 logo
TEX8:15 PM ET
Coin flip
Model 51%Book -145 · 55%
Reid Detmers
75% NRFI · 24 GS · 4/5 L5
LAA 1st: 34% (#1) · 37% vs hand
MacKenzie Gore
68% NRFI · 25 GS · 3/5 L5
TEX 1st: 29% (#18) · 24% vs hand

Reid Detmers brings a strong 75% first-inning shutout rate into Globe Life Field, and MacKenzie Gore isn't far behind at 68%, giving both starters the edge on paper. The wrinkle is the Angels' bat: LA leads MLB in first-inning scoring at 34%, and 37% against lefties like Gore. With those forces pulling against each other, the model lands at a near-even 51% NRFI.

Globe Life Field · park run factor 94
  • Coin flip — Reid Detmers' 75% 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 -145 (55% implied); the model has it 51%.
  • The Texas Rangers score in the first in 29% of games, 18th-most in MLB, 24% against left-handers.
  • The Los Angeles Angels score in the first in 34% of games, the most in MLB, 37% against left-handers.
122 logo
CIN@
126 logo
ARI9:40 PM ET
Coin flip
Model 48%Book -118 · 51%
Nick Lodolo
79% NRFI · 14 GS · 4/5 L5
CIN 1st: 27% (#23) · 16% vs hand
Eduardo Rodriguez
58% NRFI · 24 GS · 3/5 L5
ARI 1st: 30% (#13) · 27% vs hand

Nick Lodolo brings the sharper first-inning profile here, holding a 79% NRFI mark across 14 starts and stranding trouble in four of his last five. The counter is Chase Field's 106 run factor and Eduardo Rodriguez's shakier 58% NRFI. With both lineups scoring early roughly a quarter of the time, the model lands at 48% scoreless — essentially a coin flip against the book's 51%.

Chase Field · park run factor 106
  • Coin flip — Nick Lodolo's 79% NRFI is the case for the under; the Arizona Diamondbacks' 30% first-inning bats (13th-most in MLB) are the case for the over.
  • Books price this NRFI at -118 (51% implied); the model has it 48%.
  • The Arizona Diamondbacks score in the first in 30% of games, 13th-most in MLB, 27% against left-handers.
  • The Cincinnati Reds score in the first in 27% of games, 23rd-most in MLB, 16% against left-handers.
109 logo
MIN@
129 logo
SD9:40 PM ET
Coin flip
Model 51%Book -115 · 51%
Connor Prielipp
59% NRFI · 17 GS · 3/5 L5
MIN 1st: 34% (#4) · 33% vs hand
Randy Vasquez
67% NRFI · 18 GS · 4/5 L5
SD 1st: 24% (#28) · 29% vs hand
Petco Park · park run factor 94
  • Coin flip — Randy Vasquez's 67% NRFI is the case for the under; the Minnesota Twins' 34% first-inning bats (4th-most in MLB) are the case for the over.
  • Books price this NRFI at -115 (51% implied); the model has it 51%.
  • The San Diego Padres score in the first in 24% of games, 28th-most in MLB, 29% against left-handers.
  • The Minnesota Twins score in the first in 34% of games, 4th-most in MLB, 33% against right-handers.
124 logo
PIT@
128 logo
LAD10:10 PM ET
Coin flip
Model 50%Book -133.5 · 54%
Bubba Chandler
78% NRFI · 23 GS · 4/5 L5
PIT 1st: 30% (#14) · 33% vs hand
Yoshinobu Yamamoto
71% NRFI · 21 GS · 4/5 L5
LAD 1st: 31% (#11) · 31% vs hand

Two strong first-inning arms headline this one, with Bubba Chandler protecting a 78% NRFI mark and Yamamoto right behind at 71%, both scoreless in four of their last five. The offenses don't push back much either — the Dodgers plate a first-inning run just 31% of the time, the Pirates 30% — but Dodger Stadium's slightly elevated run factor keeps it at a genuine coin flip.

Dodger Stadium · park run factor 102
  • Coin flip — Bubba Chandler's 78% NRFI is the case for the under; the Los Angeles Dodgers' 31% first-inning bats (11th-most in MLB) are the case for the over.
  • Books price this NRFI at -133.5 (54% implied); the model has it 50%.
  • The Los Angeles Dodgers score in the first in 31% of games, 11th-most in MLB, 31% against right-handers.
  • The Pittsburgh Pirates score in the first in 30% of games, 14th-most in MLB, 33% against right-handers.

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

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