NRFI Results

First-inning leans for August 20, 2026, graded from final box scores.

All-time lean record

302-249

551 graded

55%

hit rate

NRFI

165-14553%

YRFI

137-10457%

2-1 on 3 leans

NRFI 2-1 · YRFI 0-0

NRFI Leans

3
130 logo
SF@
110 logo
CLE1:10 PM ET
NRFI lean
Model 59%Book -155 · 57%
Landen Roupp
83% NRFI · 24 GS · 5/5 L5
SF 1st: 22% (#29) · 19% vs hand
Gavin Williams
75% NRFI · 24 GS · 4/5 L5
CLE 1st: 27% (#23) · 25% vs hand

Landen Roupp has kept the first inning clean in 83% of his 24 starts, and he's been perfect over his last five. That form meets a Cleveland lineup that scores in the opening frame just 27% of the time, and only 25% against righties. With Gavin Williams also carrying a 75% NRFI mark at pitcher-friendly Progressive Field, the scoreless lean makes sense.

Progressive Field · park run factor 94
  • NRFI lean — Landen Roupp (83% NRFI) and Gavin Williams (75%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -155 (57% implied); the model has it 59%.
  • The Cleveland Guardians score in the first in 27% of games, 23rd-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.
101 logo
TOR@
105 logo
TB1:10 PM ET
NRFI lean
Model 53%Book -127.5 · 99%
Shane Bieber
60% NRFI · 10 GS · 4/5 L5
TOR 1st: 22% (#30) · 16% vs hand
Ian Seymour
80% NRFI · 10 GS · 4/5 L5
TB 1st: 33% (#7) · 30% vs hand

Ian Seymour has been terrific out of the gate, posting an 80% first-inning shutout rate over 10 starts, and he draws a Toronto lineup that plates a run in the opening frame just 22% of the time — dead last in MLB, and only 16% against lefties. Shane Bieber's more modest 60% NRFI adds a little risk, but the pitching edge tilts this one toward NRFI.

Tropicana Field · park run factor 95
  • NRFI lean — Shane Bieber (60% NRFI) and Ian Seymour (80%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -127.5 (99% implied); the model has it 53%.
  • The Tampa Bay Rays score in the first in 33% of games, 7th-most in MLB, 30% against right-handers.
  • The Toronto Blue Jays score in the first in 22% of games, 30th-most in MLB, 16% against left-handers.
103 logo
NYY@
102 logo
BAL6:35 PM ET
NRFI lean
Model 57%Book -140.5 · 55%
Gerrit Cole
80% NRFI · 15 GS · 5/5 L5
NYY 1st: 29% (#17) · 22% vs hand
Kyle Bradish
91% NRFI · 23 GS · 5/5 L5
BAL 1st: 25% (#27) · 31% vs hand

Kyle Bradish's 91% NRFI mark across 23 starts headlines this one, and Gerrit Cole matches the momentum with five straight scoreless first innings and an 80% rate himself. Neither offense does much early either — Baltimore plates a first-inning run in just 25% of games, and the Yankees drop to 22% against right-handers. That combination is why the model's 57% NRFI edges the market's 55%.

Oriole Park at Camden Yards · park run factor 100
  • NRFI lean — Gerrit Cole (80% NRFI) and Kyle Bradish (91%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -140.5 (55% implied); the model has it 57%.
  • The Baltimore Orioles score in the first in 25% of games, 27th-most in MLB, 31% against right-handers.
  • The New York Yankees score in the first in 29% of games, 17th-most in MLB, 22% against right-handers.

Coin Flips

6
125 logo
STL@
122 logo
CIN12:40 PM ET
Coin flip
Model 48%Book -111 · 50%
Michael McGreevy
77% NRFI · 22 GS · 3/5 L5
STL 1st: 31% (#12) · 25% vs hand
Brady Singer
59% NRFI · 22 GS · 5/5 L5
CIN 1st: 27% (#22) · 29% vs hand

Michael McGreevy's 77% first-inning shutout rate over 22 starts is the strongest arm here, but Great American Ball Park's 106 run factor and Brady Singer's more middling 59% NRFI muddy the picture. Cincinnati's bats have gone quiet early lately, so Singer's 5-for-5 clean first frames in his last five starts help balance things out. The model lands at 48%, right on the fence.

Great American Ball Park · park run factor 106
  • Coin flip — Michael McGreevy's 77% NRFI is the case for the under; the St. Louis Cardinals' 31% first-inning bats (12th-most in MLB) are the case for the over.
  • Books price this NRFI at -111 (50% implied); the model has it 48%.
  • The Cincinnati Reds score in the first in 27% of games, 22nd-most in MLB, 29% against right-handers.
  • The St. Louis Cardinals score in the first in 31% of games, 12th-most in MLB, 25% against right-handers.
113 logo
OAK@
108 logo
KC2:10 PM ET
Coin flip
Model 50%Book -128 · 52%
Gage Jump
73% NRFI · 15 GS · 3/5 L5
OAK 1st: 30% (#15) · 32% vs hand
Randy Dobnak
83% NRFI · 6 GS · 4/5 L5
KC 1st: 31% (#11) · 31% vs hand

Randy Dobnak has been stingy early, posting an 83% NRFI mark across his six starts, and Gage Jump backs him with a solid 73% clip for Oakland. Neither lineup does much damage in the first, as the Royals and A's each score in the opening frame just around 30% of the time. Even with Kauffman playing slightly hitter-friendly, the model splits it right down the middle at 50%.

Kauffman Stadium · park run factor 102
  • Coin flip — Randy Dobnak's 83% NRFI is the case for the under; the Kansas City Royals' 31% first-inning bats (11th-most in MLB) are the case for the over.
  • Books price this NRFI at -128 (52% implied); the model has it 50%.
  • The Kansas City Royals score in the first in 31% of games, 11th-most in MLB, 31% against left-handers.
  • The Oakland Athletics score in the first in 30% of games, 15th-most in MLB, 32% against right-handers.
114 logo
SEA@
123 logo
MIL2:10 PM ET
Coin flip
Model 51%Book -120 · 51%
George Kirby
68% NRFI · 22 GS · 3/5 L5
SEA 1st: 29% (#19) · 27% vs hand
Robert Gasser
57% NRFI · 14 GS · 3/5 L5
MIL 1st: 28% (#21) · 26% vs hand

George Kirby brings a strong 68% first-inning shutout rate into Milwaukee, but the surrounding numbers keep this one dead even. Robert Gasser's 57% NRFI clip is more modest, and both offenses are middling early — the Brewers plate a run in the first just 28% of the time, the Mariners 29%. American Family Field's 94 run factor nudges toward pitching, yet the model lands right at 51%.

American Family Field · park run factor 94
  • Coin flip — George Kirby's 68% NRFI is the case for the under; the Seattle Mariners' 29% first-inning bats (19th-most in MLB) are the case for the over.
  • Books price this NRFI at -120 (51% implied); the model has it 51%.
  • The Milwaukee Brewers score in the first in 28% of games, 21st-most in MLB, 26% against right-handers.
  • The Seattle Mariners score in the first in 29% of games, 19th-most in MLB, 27% against left-handers.
119 logo
ATL@
106 logo
CHW2:10 PM ET
Coin flip
Model 52%Book -110.5 · 50%
Grant Holmes
86% NRFI · 21 GS · 5/5 L5
ATL 1st: 30% (#16) · 26% vs hand
Anthony Kay
68% NRFI · 22 GS · 4/5 L5
CHW 1st: 32% (#9) · 29% vs hand

Grant Holmes brings serious first-inning credentials to Chicago, posting an 86% NRFI mark across 21 starts and holding the line in all five of his last five. The White Sox counter with Anthony Kay, whose 68% NRFI rate is solid but a notch below, and Atlanta's bats plate a first-inning run just 26% of the time versus lefties. With both offenses quiet early, the model's slim 52% scoreless read fits the coin-flip label.

Rate Field · park run factor 98
  • Coin flip — Grant Holmes' 86% 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 -110.5 (50% implied); the model has it 52%.
  • The Chicago White Sox score in the first in 32% of games, 9th-most in MLB, 29% against right-handers.
  • The Atlanta Braves score in the first in 30% of games, 16th-most in MLB, 26% against left-handers.
120 logo
WSH@
115 logo
TEX8:05 PM ET
Coin flip
Model 51%Book -131.5 · 53%
Andrew Alvarez
100% NRFI · 10 GS · 5/5 L5
WSH 1st: 33% (#6) · 33% vs hand
Jacob deGrom
57% NRFI · 23 GS · 4/5 L5
TEX 1st: 29% (#18) · 22% vs hand

Andrew Alvarez has yet to allow a first-inning run across 10 starts, a spotless mark that anchors the NRFI case here. But deGrom's 57% first-inning clean rate is more ordinary, and Washington's bats rank sixth in MLB for first-inning scoring — enough to keep this a true coin flip, with the model's 51% just shy of the book's 53%.

Globe Life Field · park run factor 94
  • Coin flip — Andrew Alvarez's 100% 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 -131.5 (53% implied); the model has it 51%.
  • The Texas Rangers score in the first in 29% of games, 18th-most in MLB, 22% against left-handers.
  • The Washington Nationals score in the first in 33% of games, 6th-most in MLB, 33% against right-handers.
112 logo
LAA@
111 logo
HOU8:10 PM ET
Coin flip
Model 48%Book -109.5 · 49%
Grayson Rodriguez
69% NRFI · 13 GS · 3/5 L5
LAA 1st: 34% (#3) · 33% vs hand
Peter Lambert
76% NRFI · 21 GS · 3/5 L5
HOU 1st: 33% (#5) · 36% vs hand

Peter Lambert's 76% first-inning NRFI mark headlines this one, and Grayson Rodriguez isn't far behind at 69% over 13 starts. The catch is that both offenses come in hot early — Houston plots up in the 1st in 33% of games and the Angels rank third in MLB at 34%. That tug-of-war lands the model at 48%, right on top of the book's 49%.

Daikin Park · park run factor 100
  • Coin flip — Peter Lambert's 76% NRFI is the case for the under; the Los Angeles Angels' 34% first-inning bats (3rd-most in MLB) are the case for the over.
  • Books price this NRFI at -109.5 (49% implied); the model has it 48%.
  • The Houston Astros score in the first in 33% of games, 5th-most in MLB, 36% against right-handers.
  • The Los Angeles Angels score in the first in 34% of games, 3rd-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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