Cohort progression — Clubul Sportiv Municipal Bacau
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 freestyle200 medley100 backstroke50 freestyle50 backstroke50 butterfly100 freestyle200 backstroke50 breaststroke100 butterfly100 breaststroke400 freestyle100 medley