Cohort progression — CSM Corona 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: 50 freestyle50 butterfly50 breaststroke200 freestyle100 freestyle100 breaststroke200 medley50 backstroke200 breaststroke100 butterfly100 backstroke400 freestyle200 backstroke200 butterfly100 medley800 freestyle