MLB First Inning Research Hub
BETAExplore 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: August 20, 2025
Ballpark First Inning Statistics
Key:
Better
League Avg
Worse
Darker colors highlight differences vs. league average
Compare ballpark environments and their impact on first inning scoring
Darker colors indicate greater differences vs. league average.
Ballpark | Games | NRFI | YRFI | TIE | Streak | NRFI % | YRFI % | TIE % | Avg Runs/Game | Avg Temperature |
|---|---|---|---|---|---|---|---|---|---|---|
 | 62 | 39 | 23 | 40 | 1 NRFI | 62.90% | 37.10% | 64.52% | 0.69 | 72.1°F |
 | 66 | 29 | 37 | 31 | 1 NRFI | 43.94% | 56.06% | 46.97% | 1.24 | 74.4°F |
🏟️ | 1 | 0 | 1 | 0 | 1 YRFI | 0.00% | 100.00% | 0.00% | 2.00 | 68.0°F |
 | 65 | 32 | 33 | 32 | 1 NRFI | 49.23% | 50.77% | 49.23% | 0.94 | 77.3°F |
 | 63 | 26 | 37 | 28 | 1 YRFI | 41.27% | 58.73% | 44.44% | 1.32 | 78.9°F |
 | 64 | 35 | 29 | 37 | 1 NRFI | 54.69% | 45.31% | 57.81% | 0.92 | 71.5°F |
 | 61 | 31 | 30 | 32 | 2 YRFI | 50.82% | 49.18% | 52.46% | 1.11 | 74.1°F |
 | 66 | 34 | 32 | 35 | 1 YRFI | 51.52% | 48.48% | 53.03% | 0.88 | 70.7°F |
 | 65 | 25 | 40 | 29 | 1 NRFI | 38.46% | 61.54% | 44.62% | 1.38 | 75.5°F |
 | 65 | 35 | 30 | 36 | 3 NRFI | 53.85% | 46.15% | 55.38% | 0.94 | 73.0°F |
 | 65 | 26 | 39 | 29 | 2 YRFI | 40.00% | 60.00% | 44.62% | 1.51 | 70.9°F |
 | 66 | 32 | 34 | 36 | 3 NRFI | 48.48% | 51.52% | 54.55% | 1.38 | 68.5°F |
 | 64 | 26 | 38 | 28 | 2 YRFI | 40.63% | 59.38% | 43.75% | 1.11 | 84.3°F |
 | 63 | 37 | 26 | 40 | 1 YRFI | 58.73% | 41.27% | 63.49% | 0.73 | 74.4°F |
 | 64 | 30 | 34 | 32 | 2 NRFI | 46.88% | 53.13% | 50.00% | 1.08 | 76.0°F |
🏟️ | 1 | 1 | 0 | 1 | 1 NRFI | 100.00% | 0.00% | 100.00% | 0.00 | 73.0°F |
 | 65 | 38 | 27 | 40 | 9 YRFI | 58.46% | 41.54% | 61.54% | 0.77 | 78.0°F |
League AverageAverage | 58 | 29 | 28 | 31 | - | 50.81% | 49.19% | 54.01% | 1.04 | - |
 | 62 | 29 | 33 | 30 | 1 NRFI | 46.77% | 53.23% | 48.39% | 0.85 | 74.0°F |
 | 64 | 30 | 34 | 32 | 2 NRFI | 46.88% | 53.13% | 50.00% | 1.53 | 75.6°F |
 | 63 | 36 | 27 | 40 | 2 NRFI | 57.14% | 42.86% | 63.49% | 0.68 | 61.7°F |
 | 60 | 34 | 26 | 34 | 2 NRFI | 56.67% | 43.33% | 56.67% | 1.03 | 79.4°F |
 | 61 | 34 | 27 | 36 | 3 YRFI | 55.74% | 44.26% | 59.02% | 0.82 | 67.1°F |
 | 66 | 38 | 28 | 41 | 2 YRFI | 57.58% | 42.42% | 62.12% | 0.82 | 71.7°F |
 | 62 | 34 | 28 | 36 | 3 NRFI | 54.84% | 45.16% | 58.06% | 1.10 | 70.3°F |
 | 62 | 31 | 31 | 34 | 3 NRFI | 50.00% | 50.00% | 54.84% | 1.10 | 69.8°F |
 | 63 | 32 | 31 | 35 | 5 NRFI | 50.79% | 49.21% | 55.56% | 1.05 | 69.8°F |
 | 63 | 26 | 37 | 28 | 4 YRFI | 41.27% | 58.73% | 44.44% | 1.62 | 78.8°F |
 | 62 | 39 | 23 | 40 | 3 YRFI | 62.90% | 37.10% | 64.52% | 0.81 | 65.1°F |
 | 63 | 35 | 28 | 37 | 3 NRFI | 55.56% | 44.44% | 58.73% | 0.79 | 71.9°F |
🏟️ | 2 | 2 | 0 | 2 | 2 NRFI | 100.00% | 0.00% | 100.00% | 0.00 | 72.0°F |
 | 63 | 30 | 33 | 31 | 1 NRFI | 47.62% | 52.38% | 49.21% | 0.90 | 78.5°F |
 | 63 | 35 | 28 | 36 | 1 NRFI | 55.56% | 44.44% | 57.14% | 1.03 | 68.4°F |
 | 62 | 28 | 34 | 32 | 1 NRFI | 45.16% | 54.84% | 51.61% | 1.18 | 71.5°F |
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
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Updated "2024+" column to include 2025 data
March 30, 2025
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Updated schedule to refresh 15 mins after final game of day
March 29, 2025
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Added basic matchup previews for upcoming games
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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