In The Big League Swing I argued that Little League runs on different math than the majors. A ball in play is worth more when the defense is nine years old.

It turns out somebody already counted.

The coach who kept score

Joe Golton coached his son through a PONY league in California and tracked everything. Walks. Errors. Easy outs made and missed. Strike percentage for every pitcher. Then he published it. It is the most detailed public record of real youth game data I have found.

It is one coach, one league, a few seasons. Not a study. But it is real games, counted carefully, and it lines up with what most of us see from the dugout.

The headline number

Batter reaches base on an error, per plate appearance
MLB
1 in 170
PONY 9-10
1 in 17
MLB: Baseball-Reference team totals, 2024 to 2026. PONY: one rec team, one season (Golton).

Roughly ten times the chances. In the big leagues, a ground ball is close to a sure out. At 9 and 10, putting the ball in play is a real shot at getting on.

What wins changes with age

The most useful part of his data is not any single number. It is how the answer to “what wins?” shifts as kids grow.

What decided games in one PONY league
Ages 7-8Catch the ball. Fewest runs allowed was the best predictor of playoff success across eight seasons.
Ages 9-10Throw strikes. The team that walked fewer batters won 15 of 19 games one season and all 20 the next (two were tied on walks).
Ages 11-12Real baseball starts. On the bigger field, most easy plays get made, and walks decide fewer games.

Ages 7-8: the easy out is not easy

He tracked “easy outs,” the routine plays a big leaguer makes without thinking. Across the league, teams converted about 45 to 50 percent of them. His own team started near 20 percent. The undefeated team converted about 85 to 90 percent, with average hitting.

Read that again. At 7 and 8, a routine ground ball is about a coin flip. Every ball in play is a chance for something to happen.

Ages 9-10: free bases everywhere

Kid pitch arrives, and so do the walks. A typical game had each team issuing about 10 walks and committing about 3 errors that put a batter on base. His team's on-base picture looked nothing like the majors:

How his 9-10 rec team got on base
Walks + HBP
.278
Hits
.142
Errors
.059
Share of plate appearances. Total on base: .482. MLB on-base is about .315.

Nearly half of all trips to the plate ended with the batter on base. Hits were the smallest slice of the real offense. Walks were the biggest, and errors added a meaningful chunk on top.

Ages 11-12: the field grows up

When his kids moved to 70-foot bases, a lot changed. Strikeouts dropped. Most easy plays started getting made, so the harder plays decided games. Walks still mattered, but the team that walked more batters won 35 percent of the time, up from 10 percent at 9 and 10. Some hitters who looked great at 10 saw their numbers fall on the bigger field.

What we take from this

The pros optimize for elite defense. Our kids play against each other. At this age, the ball in play is not only a strategy. It is where the game happens.
The Pressure Series

Guidelines & sources this field note follows

Note on certainty: this is one coach's tracking in one PONY league in California, mostly from his own team. Samples are small, and scoring an error is a judgment call that varies by scorekeeper. Your league may look different. Treat these numbers as a well-kept field notebook, not research.