Youth Baseball Stats Calculator
Batting and pitching stats with the math youth baseball actually uses — including the one most calculators get wrong: ERA in a 6-inning game is not ERA in a 9-inning game. Every formula is shown, so scorekeepers can check the work.
Batting
Enter at-bats and hits to see AVG, OBP, SLG, and OPS.
Pitching
Enter innings pitched to see ERA and WHIP.
The formulas, shown
- AVG = H ÷ AB. Walks, HBP, and sacrifices are not at-bats.
- OBP = (H + BB + HBP) ÷ (AB + BB + HBP + SF).
- SLG = total bases ÷ AB, where total bases = singles + 2×doubles + 3×triples + 4×home runs.
- OPS = OBP + SLG.
- ERA = (earned runs × innings per game) ÷ innings pitched. A "3.00 ERA" means 3 earned runs per full game — so youth ERA must use 6 (or 7) as the multiplier, not 9. Partial innings count by outs: 4.2 IP = 4⅔ innings.
- WHIP = (walks + hits allowed) ÷ innings pitched.
What's a "good" number for a youth player?
Honest answer: youth samples are tiny and scorekeeping is generous, so treat stats as a trend, not a truth. A 40-at-bat season is one hot week away from a .350 average. That said, some useful context:
- Batting average runs much higher in youth ball than MLB — errors count as hits in many scorebooks and defenses are learning. A .300+ average at 10U–12U rec level is common for strong hitters; travel-ball pitching drags everyone down 50–100 points.
- OBP is the number that matters most at youth level: walks are a huge share of offense, and a player with a .450 OBP is helping more than a .320 hitter who never walks.
- ERA and WHIP get weird fast in small samples — one rough inning can double an ERA. WHIP (baserunners per inning) stabilizes sooner and is the better week-to-week check on a young pitcher. Under 1.5 is solid youth work.
- The number that beats every stat at this level: strike percentage. If your scorekeeper tracks one extra thing, track that.
Frequently asked questions
Why does ERA use 6 innings instead of 9?
ERA answers "how many earned runs would this pitcher allow in a complete game?" A complete game is 6 innings in Little League and 7 in most high-school play — using 9 makes every youth pitcher's ERA look 50% worse than it is and breaks comparisons to published youth benchmarks.
What counts as an at-bat?
A plate appearance that ends in a hit, an out (except sacrifices), an error, or a fielder's choice. Walks, hit-by-pitch, sacrifice bunts, sacrifice flies, and catcher's interference are not at-bats — which is why a player can go 2-for-2 with two walks in a four-plate-appearance game.
What does 4.2 innings pitched mean?
4 innings plus 2 outs — the ".1" and ".2" are thirds of an inning, not tenths. This calculator's "extra outs" field handles it: 4.2 IP is entered as 4 innings + 2 outs and computes as 4⅔.
Should errors count against a young hitter's average?
By the book, reaching on an error is an 0-for-1. In practice many youth scorekeepers score generously, which inflates everyone's average — one more reason to compare players only within the same scorebook, and to care more about hard contact than the number.
Sources
Standard MLB statistical definitions, with the innings-per-game multiplier adjusted for youth game length. Formulas match the official scoring rules; your league's scorebook is the source of the inputs.