Cohort progression — MUKS Rekin Bydgoszcz
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 breaststroke50 backstroke100 freestyle25 freestyle25 backstroke100 breaststroke100 backstroke100 medley50 butterfly200 medley25 breaststroke100 butterfly400 freestyle25 butterfly200 freestyle200 backstroke200 breaststroke800 freestyle25 unknown
Cohorts to compare: 2018 292017 292016 262015 262014 252013 282012 252011 322010 412009 342008 342007 362006 432005 362004 452003 382002 182001 242000 51999 111998 41997 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015