Ключевые слова: 2017, adult, asphalt, athlete, athletic, back, caucasian, championship, city, competition, competitive, distance, endurance, european, exercise, group, jogging, male, man, marathon, men, outdoor, people, race, real, rivalry, road, run, runner, runners, running, russia, shoe, shoes, sport, sportswear, street, town, track, woman, women, young,