Cohort progression — Clubul Sportiv Municipal Arad
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 freestyle50 butterfly200 freestyle100 freestyle50 breaststroke100 breaststroke50 backstroke200 medley100 butterfly200 breaststroke100 backstroke400 freestyle200 butterfly200 backstroke800 freestyle100 medley