Cohort progression — MASTERS Lublin
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 backstroke100 backstroke50 breaststroke100 medley50 freestyle100 freestyle100 breaststroke50 butterfly200 freestyle200 backstroke400 freestyle
Cohorts to compare: 1975 5
50 m backstroke men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 1975