Ключевые слова: 2018, action, anna mark helwigh, athlete, athletes, athletics, australia, brielle erbacher, challenge, champion, championship, championships, china, competition, competitors, denmark, distance, down, female, field, finland, game, games, iaaf, italia, italian, july, kristlin gear, ludovica cavalli, motion, outdoor, people, race, run, runner, sport, stadium, steeplechase, stipple, tampere, team, tournament, track, track and field, u20, usa, wanhua tian, win, world, young,