Stats
Baseball Statistics: The Complete Reference for Coaches
This is the complete reference for baseball statistics — every stat a youth coach tracks, what it means, how to calculate it, and when it actually matters for player development. Use it as a reference during the season, a learning tool if you're new to coaching, or a resource when a parent asks "what's my kid's OPS?"
Stats by Category
Batting Stats →
The offensive numbers. How to measure hitting performance, plate discipline, and offensive contribution.
| Stat | What It Tells You | Page |
|---|---|---|
| Batting Average (AVG) | How often a batter gets a hit | → |
| On-Base Percentage (OBP) | How often a batter reaches base | → |
| Slugging Percentage (SLG) | A batter's power and extra-base ability | → |
| OPS | Combined on-base + power (OBP + SLG) | → |
| Strikeouts (K) | How often a batter strikes out | → |
| Quality At-Bat (QAB) | Whether an at-bat was productive, regardless of outcome | → |
Pitching Stats →
The mound numbers. How to measure pitcher effectiveness and track workload for arm safety.
| Stat | What It Tells You | Page |
|---|---|---|
| Earned Run Average (ERA) | Runs allowed per game equivalent | → |
| Pitch Count | Total pitches thrown in a game | → |
| Strike Percentage | Proportion of pitches that are strikes | → |
Fielding Stats →
The defensive numbers. How to measure fielding reliability and contribution.
| Stat | What It Tells You | Page |
|---|---|---|
| Fielding Percentage | Rate of successful defensive plays | → |
| Errors (E) | Mistakes that allow runners to advance | → |
Guides: Which Stats Matter and When
Stats mean different things at different ages. A batting average that looks terrible at 14U might be perfectly normal at 10U. These guides help you know what to focus on.
| Guide | Who It's For |
|---|---|
| What Stats to Track at 10U-11U → | Coaches of younger competitive players |
| What Stats to Track at 12U → | The most competitive age in youth ball |
| What Stats to Track at 13U-14U → | Players transitioning to bigger fields |
| Average Baseball Stats by Age → | Benchmarks so you know what "good" looks like |
| Using Stats Without Overcoaching → | How to use data without killing a kid's love of the game |
| The Coach's Guide to Quality At-Bats → | Why QAB might matter more than batting average |
How Stats Connect to Rizzler
Rizzler isn't just a stats reference — it's a stats tracking tool. Score games in the web app or iOS app and the stats calculate automatically. On the Pro plan, import stats from GameChanger to power the AI Batting Order, which uses stats like OBP, OPS, and strikeout rate to generate optimized lineups.
The stats you track feed the AI. The AI builds better game plans. Better game plans lead to better player development. That's the loop.
Frequently Asked Questions
What's the most important stat for a youth baseball coach to track?
It depends on your age group. At 10U-11U, strike percentage and basic contact rates matter more than traditional stats. At 12U and above, OBP and quality at-bats are more useful than batting average alone. Full age-by-age guide →
Should I share stats with my players?
Carefully. At younger ages (10U and below), focus on effort and process, not numbers. At 12U+, share stats that encourage good habits — like QAB percentage, which rewards walks and hard contact, not just hits. More on this →
Does Rizzler track all of these stats?
Rizzler tracks batting stats (hits, at-bats, walks, strikeouts, etc.), pitching stats (pitch count, strikes/balls, strike percentage), and basic fielding stats. Advanced stats like OPS and ERA are calculated automatically from the raw data.
