Cohort progression — Cetus Espoo
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle50 freestyle100 backstroke100 breaststroke50 butterfly200 medley50 backstroke50 breaststroke200 freestyle100 butterfly400 freestyle100 medley200 breaststroke200 backstroke400 medley800 freestyle200 butterfly1500 freestyle25 freestyle200 unknown
Cohorts to compare: 2018 82017 182016 462015 472014 382013 592012 462011 432010 582009 422008 382007 332006 232005 112004 72003 132002 122001 92000 41999 41997 61987 31977 31972 4
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015