Softball: rules at-a-glance

Diamond, seven innings, windmill pitching. The rules of youth fastpitch in five minutes.

Field/court setup

Diamond like baseball but smaller. 60-foot bases (8U-12U), 60-foot bases (HS+). Pitcher's mound 35 feet at 10U, 40 feet at 12U, 43 feet at HS+. Outfield grass beyond infield.

Game length

6 innings at 10U-12U, 7 innings at 14U+ and HS. Each team bats once per inning. Inning ends when the team batting records 3 outs. Time limits common (1h15m to 2h).

Scoring basics

— A run scores when a player touches all four bases (1st, 2nd, 3rd, home) without being put out.
— Three strikes is a strikeout. Four balls is a walk. Foul balls count as strikes only up to two strikes.
— Run-rule: usually 12 runs after 3 innings, 10 after 4, 8 after 5.

Calls you'll see

— Strike, ball, foul: pitch location and contact result, called by home plate ump.
— Illegal pitch: pitcher's motion violates one of several rules (crow-hopping, leaping, replanting). Each baserunner advances one base, batter awarded ball.
— Look-back rule: when the pitcher has the ball in the pitcher's circle, the runner must commit to a direction once they leave the base. Stopping or reversing direction = out.
— Infield fly: same as baseball.
— Obstruction/interference: same as baseball.

Three things parents most often get wrong

— The look-back rule is unique to softball. Many parents who played baseball don't know about it. Watch how runners behave when the pitcher has the ball in the circle.
— Pitching distance is shorter than baseball — the ball gets to the plate fast. Reaction time is roughly the same as a 90-mph fastball at the major-league level.
— Slap-hitting and short-game tactics are core to fastpitch. The casual baseball-watcher misses how much footwork is happening at the plate.

Softball and baseball share most of the basic structure but differ in important ways.

Pitching is windmill, underhand. The pitcher’s motion looks dramatically different from baseball. Top youth pitchers throw 50-65 mph; HS pitchers can throw 60-70 mph. Because the distance is shorter, reaction time at the plate is comparable to MLB-level fastballs.

The ball is bigger and bright yellow. 12-inch circumference (softball) vs 9-inch (baseball). The yellow color is required for visibility.

Stealing rules at the youth level. In Little League softball, runners cannot lead off the base before the pitch is released. They can only leave once the pitch has crossed the plate. This is different from baseball at older ages.

Bat standards. Most youth softball uses USA Softball-certified bats. Travel and HS often allow USSSA-certified bats. Check the league rule before buying.

The DP/Flex rule. At higher levels, fastpitch uses a Designated Player (DP) and Flex player rule that lets coaches sub a hitter in for a pitcher (or vice versa) without losing the player from the game. Complex; ask the coach to explain at your kid’s level.

Last updated April 2026.