Strikeout
The batter accumulates three strikes.
A practical introduction to how baseball works, written for new players and parents who want to understand a game without reading a rulebook first.
Baseball is played by two teams that alternate batting and fielding. The batting team tries to score runs by moving runners around first, second and third base and back to home plate. The fielding team tries to record outs. Three outs end a half-inning; after both teams bat, one inning is complete.
A batter begins at home plate and tries to reach base safely. Runners then advance around the diamond in order: first base, second, third and home. A run normally scores when a runner legally touches all four bases before the third out ends the inning, subject to the play and applicable rules.
The defence uses nine fielding positions in standard baseball, although youth formats can modify roster or defensive rules.
An inning has two halves. In the top half one team bats; in the bottom half the teams switch roles. In standard baseball, three outs end each half-inning.
Youth leagues may use fewer innings, time limits, run limits or other modifications to keep games age-appropriate. For a Brampton game, the league’s current rule set controls.
A pitch through the strike zone can be called a strike if the batter does not swing. A swing and miss is also a strike. A pitch outside the strike zone that the batter does not swing at is normally a ball. Four balls award first base; three strikes normally retire the batter, although a dropped third strike can create an exception in rule sets where that rule applies.
A foul ball usually counts as a strike until the batter already has two strikes; an ordinary foul does not normally become strike three. A foul bunt with two strikes is different and can result in an out.
The foul lines extend from home plate through first and third base into the outfield. A batted ball’s status depends on where it is when judged under the rules, not simply where a spectator first sees it land. Beginners should remember that the lines themselves are fair territory.
The batter accumulates three strikes.
A fielder catches a batted ball before it touches the ground.
A fielder controls the ball and touches the required base before a forced runner arrives.
A fielder with the ball tags a runner who is not safely touching a base.
A runner is forced when the batter becoming a runner requires that runner to advance. With a runner on first and the batter hitting a fair ground ball, the runner from first generally must advance to second, creating a force opportunity there.
If the force is removed—for example, when a trailing runner is retired—the remaining runner may need to be tagged. Understanding this distinction makes a large percentage of youth baseball suddenly easier to follow.
See the dedicated force-play explanation for worked examples.
Runners can advance on hits, certain errors, walks, wild pitches, passed balls and other live-ball situations. Stealing rules vary significantly by age and league. Younger divisions may restrict leads, steals or when runners can leave a base.
A runner who passes another runner, misses a base in certain circumstances or interferes with a play can be called out under applicable rules.
A run is credited when a runner legally reaches home before the third out, except when the third out is a force out or occurs in another situation that prevents the run from counting. New spectators do not need to master every scoring exception immediately; first learn to identify the third out and whether runners were forced.
Standard scorekeeping numbers are: pitcher 1, catcher 2, first base 3, second base 4, third base 5, shortstop 6, left field 7, centre field 8 and right field 9. These numbers are position labels in scoring—they are not jersey numbers.
Use the complete positions guide to understand each role.
Youth baseball intentionally modifies rules. Depending on the age and competition, you may see different base distances, pitching distances, inning limits, run limits, substitution rules, stealing rules, pitch-count requirements or tournament procedures.
That means this page teaches the durable logic of baseball, not the final legal rule for every Brampton game. BMBI, COBA and Baseball Ontario publish the rules that apply to their current programs and competitions.
If you can answer those six questions, most plays become understandable very quickly.