NRFI Results

First-inning leans for August 27, 2026, graded from final box scores.

All-time lean record

237-187

424 graded

56%

hit rate

NRFI

124-9956%

YRFI

113-8856%

0-0 on 5 leans

NRFI 0-0 · YRFI 0-0

NRFI Leans

4
102 logo
BAL@
125 logo
STL2:15 PM ET
NRFI lean
Model 54% (low)Book -130 · 53%
Trevor Rogers
87% NRFI · 23 GS · 5/5 L5
BAL 1st: 26% (#25) · 31% vs hand
Gordon Graceffo
Gordon GraceffoRHP
No season starts
STL 1st: 32% (#9) · 36% vs hand

Trevor Rogers has kept the first inning clean in 87% of his 23 starts, including all five of his last five, which is the sturdiest number on the board here. The counterweight is Gordon Graceffo, who has no season starts to judge, and a Cardinals lineup that plates a first-inning run 32% of the time — ninth-most in MLB, 36% against lefties. Slight NRFI lean at Busch, but the unknown side keeps confidence low.

Busch Stadium · park run factor 100
  • NRFI lean — Trevor Rogers has worked a scoreless first in 87% of his starts, the headline edge in a quiet matchup.
  • Books price this NRFI at -130 (53% implied); the model has it 54%.
  • The St. Louis Cardinals score in the first in 32% of games, 9th-most in MLB, 36% against left-handers.
  • The Baltimore Orioles score in the first in 26% of games, 25th-most in MLB, 31% against right-handers.
108 logo
KC@
101 logo
TOR7:07 PM ET
NRFI lean
Model 56%Book -116.5 · 51%
Noah Cameron
83% NRFI · 24 GS · 5/5 L5
KC 1st: 31% (#12) · 26% vs hand
Spencer Arrighetti
76% NRFI · 17 GS · 4/5 L5
TOR 1st: 22% (#30) · 17% vs hand

Noah Cameron has kept the first inning clean in 83% of his 24 starts, including all five of his last five, and Toronto happens to be one of the league's slowest starters — scoring in the opening frame just 22% of the time, and only 17% against lefties. Arrighetti's 76% NRFI mark holds up his end, though Kansas City's bats (31% first-inning scoring) are the live wire here.

Rogers Centre · park run factor 100
  • NRFI lean — Noah Cameron (83% NRFI) and Spencer Arrighetti (76%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -116.5 (51% implied); the model has it 56%.
  • The Toronto Blue Jays score in the first in 22% of games, 30th-most in MLB, 17% against left-handers.
  • The Kansas City Royals score in the first in 31% of games, 12th-most in MLB, 26% against right-handers.
123 logo
MIL@
117 logo
NYM7:10 PM ET
NRFI lean
Model 56%Book -158 · 57%
Jacob Misiorowski
87% NRFI · 23 GS · 5/5 L5
MIL 1st: 27% (#21) · 32% vs hand
Sean Manaea
69% NRFI · 13 GS · 5/5 L5
NYM 1st: 26% (#23) · 24% vs hand

Jacob Misiorowski has kept the first inning clean in 87% of his 23 starts, including each of his last five, and he's facing a Mets lineup that scores in the opening frame just 26% of the time (24% versus righties). Sean Manaea counters with a 69% NRFI mark and five straight scoreless firsts. Citi Field's 96 run factor nudges things further down; the model's 56% sits right on the market's 57%.

Citi Field · park run factor 96
  • NRFI lean — Jacob Misiorowski (87% NRFI) and Sean Manaea (69%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -158 (57% implied); the model has it 56%.
  • The New York Mets score in the first in 26% of games, 23rd-most in MLB, 24% against right-handers.
  • The Milwaukee Brewers score in the first in 27% of games, 21st-most in MLB, 32% against left-handers.
126 logo
ARI@
130 logo
SF9:45 PM ET
NRFI lean
Model 56%Book -125 · 52%
Jose Cabrera
75% NRFI · 4 GS · 3/4 L5
ARI 1st: 30% (#16) · 31% vs hand
Landen Roupp
80% NRFI · 25 GS · 4/5 L5
SF 1st: 24% (#28) · 21% vs hand

Landen Roupp has kept the first inning clean in 80% of his 25 starts, and he's drawing a Giants-friendly setting at Oracle Park, where the 94 run factor trims the margins. Jose Cabrera counters with a 75% NRFI mark through four starts, facing a San Francisco lineup that scores in the opening frame just 24% of the time — 21% against righties. The model's 56% edges past the book's 52%.

Oracle Park · park run factor 94
  • NRFI lean — Jose Cabrera (75% NRFI) and Landen Roupp (80%) have both buried the first inning, and neither lineup gets going early.
  • Books price this NRFI at -125 (52% implied); the model has it 56%.
  • The San Francisco Giants score in the first in 24% of games, 28th-most in MLB, 21% against right-handers.
  • The Arizona Diamondbacks score in the first in 30% of games, 16th-most in MLB, 31% against right-handers.

YRFI Leans

1
127 logo
COL@
120 logo
WSH1:05 PM ET
YRFI lean
Model 45%Book +108 · 45%
Gabriel Hughes
50% NRFI · 8 GS · 3/5 L5
COL 1st: 33% (#6) · 29% vs hand
Jake Irvin
60% NRFI · 15 GS · 4/5 L5
WSH 1st: 31% (#10) · 29% vs hand

Gabriel Hughes has kept the first inning clean in just half of his eight starts, and he's drawing a Nationals lineup that plates a run in the opening frame 31% of the time — 10th-most in MLB. Colorado's bats rank sixth in first-inning scoring at 33%, so even Jake Irvin's 60% NRFI mark doesn't fully offset the offense on both sides at a slightly hitter-friendly Nationals Park.

Nationals Park · park run factor 102
  • YRFI lean — the Colorado Rockies push a first-inning run across in 33% of games (6th-most in MLB), hard to keep off the board early.
  • Books price this NRFI at +108 (45% implied); the model has it 45%.
  • The Washington Nationals score in the first in 31% of games, 10th-most in MLB, 29% against right-handers.
  • The Colorado Rockies score in the first in 33% of games, 6th-most in MLB, 29% against right-handers.

Coin Flips

2
111 logo
HOU@
103 logo
NYY7:05 PM ET
Coin flip
Model 50%Book -118 · 51%
Hayden Wesneski
80% NRFI · 5 GS · 4/5 L5
HOU 1st: 34% (#3) · 38% vs hand
Gerrit Cole
81% NRFI · 16 GS · 5/5 L5
NYY 1st: 29% (#18) · 22% vs hand

Gerrit Cole has kept the first inning clean in five straight starts and 81% of his 16 outings overall, but Houston's bats are the complication — third in MLB at scoring in the opening frame (34%, and 38% against righties). Hayden Wesneski's 80% NRFI mark over five starts should quiet a Yankees lineup that only strikes early 22% of the time versus right-handers, leaving this one genuinely split at 50/50.

Yankee Stadium · park run factor 100
  • Coin flip — Gerrit Cole's 81% 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 -118 (51% implied); the model has it 50%.
  • The New York Yankees score in the first in 29% of games, 18th-most in MLB, 22% against right-handers.
  • The Houston Astros score in the first in 34% of games, 3rd-most in MLB, 38% against right-handers.
128 logo
LAD@
119 logo
ATL7:15 PM ET
Coin flip
Model 51%Book -170 · 59%
Yoshinobu Yamamoto
68% NRFI · 22 GS · 3/5 L5
LAD 1st: 32% (#8) · 26% vs hand
Chris Sale
86% NRFI · 22 GS · 4/5 L5
ATL 1st: 30% (#14) · 30% vs hand

Chris Sale has kept the first inning clean in 86% of his 22 starts, easily the sturdiest number on the board, and that's what's holding the market at 59% NRFI. The pushback: Yoshinobu Yamamoto sits at 68% and has been scoreless in just three of his last five, while the Dodgers rank 8th in MLB at scoring in the first. Add Truist Park's 102 run factor and the model lands at a near-even 51%.

Truist Park · park run factor 102
  • Coin flip — Chris Sale's 86% NRFI is the case for the under; the Los Angeles Dodgers' 32% first-inning bats (8th-most in MLB) are the case for the over.
  • Books price this NRFI at -170 (59% implied); the model has it 51%.
  • The Atlanta Braves score in the first in 30% of games, 14th-most in MLB, 30% against right-handers.
  • The Los Angeles Dodgers score in the first in 32% of games, 8th-most in MLB, 26% against left-handers.

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

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