Cohort progression — Spordiklubi Garant
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 backstroke50 breaststroke100 freestyle100 butterfly100 breaststroke100 backstroke200 breaststroke200 medley200 freestyle200 backstroke400 freestyle200 butterfly400 medley