At 13 to 15, tennis movement splits into craft and engine. Craft: full court-coverage patterns (the defensive fan, the offensive step-in, transition sprints) run reactively off live cues, because rallies never announce their next direction. Engine: the sport's interval shape (six-to-ten-second bursts, short rests, repeated for an hour) trained deliberately, plus the single-leg landing control that guards teenage knees and ankles through the growth window.
This is a 75-minute workout with chalk, markers, a stopwatch, and a caller. Everything logs: pattern times planned and reactive, engine rounds, landing grades. The framing that earns the sweat: at this age, movement is the biggest gap between seeded and unseeded juniors with identical strokes, and it is the most trainable gap on the entire list.
This plan was written for every 13 to 15 year old. ParentEdge writes one for yours.
Built around their game, their goals, and what they’re working on.
Among juniors with comparable strokes, it is usually THE separator: court coverage decides how many balls get hit on balance, and the interval engine decides whether quality survives an hour. It is also the most trainable gap: strokes plateau for months, but fan times, reactive gaps, and interval falloff all move within weeks of honest work.
The sport's own: six-to-ten-second maximal bursts with short rests, repeated in sets, in tennis movement patterns rather than straight lines. Distance running builds the wrong engine entirely. The logged falloff across rounds (round one versus round ten touches) is the honest fitness number for a tennis player.
The teenage growth window is where ankles and knees get protected or spent, and tennis loads one leg at a time constantly: wide forehands, open-stance hits, direction changes. Stuck single-leg bounds with the knee tracking over the toes are the best-evidenced insurance available, and they double as the strength behind open-stance power.