Cohort progression — Asociatia Club Sportiv Hyperion Brasov
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 200 medley50 freestyle200 freestyle50 butterfly100 freestyle50 backstroke100 backstroke50 breaststroke200 backstroke400 freestyle100 butterfly100 breaststroke200 breaststroke200 butterfly100 medley400 medley800 freestyle