Cohort progression — ÓSEMKA Oświęcim
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 freestyle100 medley50 backstroke50 breaststroke50 butterfly100 backstroke100 breaststroke200 medley100 freestyle400 freestyle200 freestyle25 freestyle100 butterfly25 backstroke200 breaststroke200 backstroke
Cohorts to compare: 2017 212016 172015 182008 72007 112006 172005 172002 182001 202000 261999 171998 13