MLB First Inning Research Hub

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Explore up-to-date stats, trends and insights focused on the first innings of MLB games
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Stats reflect past performance. Not predictions.
Data updated through: July 13, 2025

League First Inning Statistics

Showing 2025 season

Quick Filters:
51.2%
No Run First Inning
48.8%
Yes Run First Inning
54.4%
First Inning Tie
1.03
Runs per Inning
1,446
Total Games

Active filter: 2025 Season

NRFI Rate Trends

Showing 2025 season with 7-day moving average

Best NRFI Team Pitching

2025 Season • Minimum 20 games

#1
KC Logo
Kansas City Royals
87.6%
97 games
#2
NYM Logo
New York Mets
80.4%
97 games
#3
PHI Logo
Philadelphia Phillies
80.2%
96 games
#4
PIT Logo
Pittsburgh Pirates
77.3%
97 games
#5
SD Logo
San Diego Padres
77.1%
96 games
#6
DET Logo
Detroit Tigers
76.3%
97 games
#7
TEX Logo
Texas Rangers
76.3%
97 games
#8
NYY Logo
New York Yankees
75.0%
96 games
#9
CLE Logo
Cleveland Guardians
74.7%
95 games
#10
CIN Logo
Cincinnati Reds
74.2%
97 games
View Full Team Leaderboard

Best NRFI Pitchers

2025 Season • Minimum 15 starts

#1
PIT Logo
Paul Skenes
100.0%
20 starts
#2
KC Logo
Michael Wacha
100.0%
19 starts
#3
TB Logo
Shane Baz
94.7%
19 starts
#4
SEA Logo
Luis Castillo
94.7%
19 starts
#5
ATH Logo
JP Sears
94.7%
19 starts
#6
CIN Logo
Andrew Abbott
93.8%
16 starts
#7
PHI Logo
Zack Wheeler
89.5%
19 starts
#8
NYM Logo
David Peterson
88.9%
18 starts
#9
KC Logo
Michael Lorenzen
88.9%
18 starts
#10
TEX Logo
Patrick Corbin
88.2%
17 starts
View Full Pitching Leaderboard

Worst NRFI Team Pitching

2025 Season • Minimum 20 games

#1
COL Logo
Colorado Rockies
54.2%
96 games
#2
LAD Logo
Los Angeles Dodgers
61.9%
97 games
#3
CWS Logo
Chicago White Sox
62.9%
97 games
#4
ARI Logo
Arizona Diamondbacks
63.9%
97 games
#5
LAA Logo
Los Angeles Angels
64.6%
96 games
#6
MIA Logo
Miami Marlins
65.3%
95 games
#7
BOS Logo
Boston Red Sox
66.3%
98 games
#8
WSH Logo
Washington Nationals
66.7%
96 games
#9
BAL Logo
Baltimore Orioles
67.4%
95 games
#10
TOR Logo
Toronto Blue Jays
67.7%
96 games
View Full Team Leaderboard

Worst NRFI Pitchers

2025 Season • Minimum 15 starts

#1
COL Logo
Kyle Freeland
47.1%
17 starts
#2
LAA Logo
Tyler Anderson
47.4%
19 starts
#3
CWS Logo
Sean Burke
50.0%
16 starts
#4
COL Logo
Antonio Senzatela
50.0%
18 starts
#5
TB Logo
Taj Bradley
52.6%
19 starts
#6
WSH Logo
Mitchell Parker
52.6%
19 starts
#7
STL Logo
Erick Fedde
52.6%
19 starts
#8
ARI Logo
Eduardo Rodriguez
52.9%
17 starts
#9
SEA Logo
Emerson Hancock
53.3%
15 starts
#10
ATL Logo
Bryce Elder
53.3%
15 starts
View Full Pitching Leaderboard

Why First Innings?!

Who doesn’t love a quick first inning prop bet? We noticed how little data was out there to guide smart wagers, so we compiled 20+ seasons of pitch-by-pitch info from the first innings of Major League Baseball games going back to 2005. Curious about how starting pitchers perform in those crucial first at-bats? Our upcoming dashboard will give you everything you need to analyze NRFI and YRFI bets with confidence—from pitcher profiles to ballpark factors and more.

Latest Updates

April 12, 2025

✓

Updated "2024+" column to include 2025 data

March 30, 2025

✓

Updated schedule to refresh 15 mins after final game of day

March 29, 2025

✓

Added basic matchup previews for upcoming games

✓

Fetching latest probable pitchers every 30 minutes

Features Coming Soon

Upcoming features will include:

  • • Even more detailed stats in high demand (e.g., pitches per inning, etc.)
  • • Up-to-date NRFI/YRFI standings at the team-level, plus league statistics
  • • Pitcher profile pages, advanced ratings, umpire stats, weather, and more

What Else Can We Do for You?