Ключевые слова: abstract, active, activity, arena, artificial, athlete, athletic, background, baseball, championship, compete, competition, competitive, concepts, contest, copy, copyspice, course, empty, exercise, field, finish, focus, forward, ground, lane, nobody, outdoor, pattern, race, racecourse, racetrack, red, road, rubber, run, spice, sprinting, sprints, stadium, start, success, surface, texture, textured, track,