Cohort progression — MUKS Gilus Gilowice
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 freestyle50 breaststroke100 breaststroke50 butterfly50 backstroke200 freestyle100 backstroke100 medley200 medley200 breaststroke100 butterfly25 freestyle400 freestyle25 backstroke200 backstroke25 breaststroke200 butterfly400 medley800 freestyle
Cohorts to compare: 2018 72017 102016 172015 402014 402013 572012 372011 392010 342009 462008 582007 682006 562005 422004 342003 352002 412001 242000 161999 231998 201997 31996 121995 9
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015