Cohort progression — Masters Korona Kraków
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 50 freestyle100 freestyle50 butterfly50 breaststroke50 backstroke100 medley100 breaststroke200 freestyle200 medley100 backstroke400 freestyle200 breaststroke100 butterfly200 backstroke200 butterfly1500 freestyle400 medley800 freestyle
Cohorts to compare: 1991 31989 31988 31985 31977 31975 41974 31973 31972 31970 41969 41966 71964 31961 31959 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 1988