Cohort progression — Liceul cu program sportiv Alba Iulia
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 backstroke200 medley100 backstroke200 freestyle50 butterfly100 freestyle200 backstroke50 breaststroke100 breaststroke100 butterfly200 breaststroke200 butterfly400 freestyle100 medley