NRFI Results

Parker Messick's spotless first frame across all 16 starts this season anchors the NRFI lean at Progressive Field, where the run factor sits below average at 94. Tyler Alexander matches him with a clean opening inning in both of his starts, and neither Cleveland (24%) nor Texas (30%) does much scoring early. The model's 58% edges the book's 55%.

• NRFI lean — Parker Messick has worked a scoreless first in 100% of his starts, the headline edge in a quiet matchup.
• Books price this NRFI at -142 (55% implied); the model has it 58%.
• The Cleveland Guardians score in the first in 24% of games, 24th-most in MLB, 23% against left-handers.
• The Texas Rangers score in the first in 30% of games, 19th-most in MLB, 29% against left-handers.

Toronto's bats have been quiet in the opening frame, scoring just 23% of the time and a meager 15% against lefties — bad news facing Sean Manaea, who's posted a 67% NRFI mark this year. Trey Yesavage matches that profile at 64% NRFI for the Jays, and the Mets aren't much livelier early. The model's 53% scoreless read narrowly tops the book's 50%.

• NRFI lean — Sean Manaea (67% NRFI) and Trey Yesavage (64%) have both buried the first inning, and neither lineup gets going early.
• Books price this NRFI at -113 (50% implied); the model has it 53%.
• The Toronto Blue Jays score in the first in 23% of games, 26th-most in MLB, 15% against left-handers.
• The New York Mets score in the first in 26% of games, 22nd-most in MLB, 24% against right-handers.

• NRFI lean — Shota Imanaga has worked a scoreless first in 80% of his starts, the headline edge in a quiet matchup.
• Books price this NRFI at +119 (43% implied); the model has it 59%.
• The Chicago Cubs score in the first in 19% of games, 30th-most in MLB, 22% against right-handers.
• The San Diego Padres score in the first in 20% of games, 29th-most in MLB, 18% against left-handers.

Zebby Matthews is the soft spot here, posting a 38% NRFI over eight starts and surrendering a first-inning run in two of his last five. Houston's bats add to the pressure, ranking fourth in MLB at putting up first-inning runs and scoring early 38% of the time against righties. Peter Lambert's sturdy 75% NRFI keeps it from being a runaway, but the lean tilts YRFI.

• YRFI lean — the Houston Astros push a first-inning run across in 37% of games (4th-most in MLB), hard to keep off the board early.
• Books price this NRFI at -106 (48% implied); the model has it 44%.
• The Houston Astros score in the first in 37% of games, 4th-most in MLB, 38% against right-handers.
• The Minnesota Twins score in the first in 36% of games, 5th-most in MLB, 34% against right-handers.

• YRFI lean — Coors Field (run factor 128) is one of the league's most hitter-friendly parks, and the Miami Marlins score early in 34% of games.
• Books price this NRFI at +123 (42% implied); the model has it 41%.
• The Colorado Rockies score in the first in 31% of games, 14th-most in MLB, 26% against right-handers.
• The Miami Marlins score in the first in 34% of games, 8th-most in MLB, 29% against left-handers.

Sutter Health Park is the story here, with a 117 run factor that tilts things toward offense. Eric Lauer fuels the YRFI case, posting just a 44% first-inning shutout rate across nine starts and only two clean opening frames in his last five. Gage Jump has been excellent at 83% NRFI, but the hitter-friendly setting and Lauer's shaky starts push the lean toward a run.

• YRFI lean — Sutter Health Park (run factor 117) is one of the league's most hitter-friendly parks, and the Los Angeles Dodgers score early in 33% of games.
• Books price this NRFI at +120 (43% implied); the model has it 42%.
• The Oakland Athletics score in the first in 31% of games, 13th-most in MLB, 33% against left-handers.
• The Los Angeles Dodgers score in the first in 33% of games, 10th-most in MLB, 26% against left-handers.

Sean Burke gives the White Sox an edge with his 73% NRFI rate across 11 starts, and Baltimore's offense rarely shows up early, scoring in the first just 22% of the time. The flip side is Shane Baz, who sits at 47% NRFI and has just one scoreless first in his last five outings, balancing this out to a true coin flip at 50%.

• Coin flip — Sean Burke's 73% NRFI is the case for the under; the Chicago White Sox's 31% first-inning bats (18th-most in MLB) are the case for the over.
• Books price this NRFI at -112.5 (50% implied); the model has it 50%.
• The Baltimore Orioles score in the first in 22% of games, 27th-most in MLB, 23% against right-handers.
• The Chicago White Sox score in the first in 31% of games, 18th-most in MLB, 25% against right-handers.

Two strong arms here make the case for quiet first frame: Braxton Ashcraft has held NRFI in 87% of his 15 starts, with Aaron Nola close behind at 80% for Philadelphia. The catch is that both lineups punch back early — Pittsburgh's bats lead MLB by scoring in the first 39% of the time, and the Phillies aren't far off. With the model at 48% versus the book's 49%, it's a genuine coin flip.

• Coin flip — Braxton Ashcraft's 87% NRFI is the case for the under; the Pittsburgh Pirates' 39% first-inning bats (most in MLB) are the case for the over.
• Books price this NRFI at -111 (49% implied); the model has it 48%.
• The Philadelphia Phillies score in the first in 34% of games, 9th-most in MLB, 36% against right-handers.
• The Pittsburgh Pirates score in the first in 39% of games, the most in MLB, 41% against right-handers.

Casey Mize has been spotless in the first frame, posting a perfect NRFI mark across all 11 starts and holding the line in each of his last five. The tension comes on the other side: Ryan Weathers sits at just 67% NRFI, and the Yankees plate a first-inning run 38% of the time, third-most in MLB. That clash leaves this one a genuine coin flip, though the model's 49% edges past the book's 36%.

• Coin flip — Casey Mize's 100% NRFI is the case for the under; the New York Yankees' 38% first-inning bats (3rd-most in MLB) are the case for the over.
• Books price this NRFI at -130 (36% implied); the model has it 49%.
• The New York Yankees score in the first in 38% of games, 3rd-most in MLB, 30% against right-handers.
• The Detroit Tigers score in the first in 31% of games, 17th-most in MLB, 27% against left-handers.

Miles Mikolas brings a perfect 100% first-inning record into Fenway, set against a Red Sox lineup that scores in the opening frame just 22% of the time and even less, 19%, against righties. Ranger Suarez counters at 79% NRFI, both starters riding 5-for-5 streaks. The arms point clean, but Fenway's 108 park factor and Washington's livelier bats nudge this toward a true 52% coin flip.

• Coin flip — Miles Mikolas' 100% NRFI is the case for the under; the Washington Nationals' 32% first-inning bats (12th-most in MLB) are the case for the over.
• Books price this NRFI at -125 (97% implied); the model has it 52%.
• The Boston Red Sox score in the first in 22% of games, 28th-most in MLB, 19% against right-handers.
• The Washington Nationals score in the first in 32% of games, 12th-most in MLB, 30% against left-handers.

Lodolo has been a first-inning wall this season, posting a 78% NRFI rate across nine starts, and Cincinnati's bats have only struck early in 26% of games. The hesitation comes from the other side: Gasser sits at a middling 50% NRFI over six starts, and Milwaukee plates a first-inning run in 32% of games. American Family Field's 94 run factor nudges it toward quiet, keeping this a genuine coin flip.

• Coin flip — Nick Lodolo's 78% NRFI is the case for the under; the Milwaukee Brewers' 32% first-inning bats (11th-most in MLB) are the case for the over.
• Books price this NRFI at -106 (48% implied); the model has it 52%.
• The Milwaukee Brewers score in the first in 32% of games, 11th-most in MLB, 33% against left-handers.
• The Cincinnati Reds score in the first in 26% of games, 23rd-most in MLB, 20% against left-handers.

George Kirby's 73% first-inning shutdown rate over 15 starts is the steadiest signal here, and T-Mobile Park's run factor of 83 suppresses scoring further. The catch is Ryan Johnson, who's posted a coin-flip 50% NRFI across just two starts — too thin a sample to trust. With both lineups scoring early around a third of the time, this one sits right at 52% scoreless.

• Coin flip — George Kirby's 73% NRFI is the case for the under; the Seattle Mariners' 35% first-inning bats (6th-most in MLB) are the case for the over.
• Books price this NRFI at -116.5 (51% implied); the model has it 52%.
• The Seattle Mariners score in the first in 35% of games, 6th-most in MLB, 33% against right-handers.
• The Los Angeles Angels score in the first in 34% of games, 7th-most in MLB, 35% against right-handers.

Tyler Mahle's 64% first-inning shutdown rate is the strongest arm in this one, and the Diamondbacks plate a run in just 26% of openers against righties — that's enough to make the Giants' side lean quiet. But Chase Field's 106 run factor and Eduardo Rodriguez's middling 53% NRFI cloud the other half, leaving this game right at a coin flip.

• Coin flip — Tyler Mahle's 64% NRFI is the case for the under; the Arizona Diamondbacks' 28% first-inning bats (21st-most in MLB) are the case for the over.
• Books price this NRFI at -111.5 (50% implied); the model has it 49%.
• The Arizona Diamondbacks score in the first in 28% of games, 21st-most in MLB, 26% against right-handers.
• The San Francisco Giants score in the first in 23% of games, 25th-most in MLB, 27% against left-handers.