Cohort progression — MKS Jordan Kraków
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 backstroke100 backstroke50 butterfly50 breaststroke100 medley100 breaststroke200 medley200 freestyle25 backstroke200 backstroke25 freestyle400 freestyle100 butterfly200 breaststroke400 medley25 breaststroke800 freestyle200 butterfly
Cohorts to compare: 2018 252017 232016 362015 262014 272013 362012 272011 302010 392009 352008 262007 192006 32005 92004 272003 312002 172001 602000 351999 531998 471997 461996 371995 211994 61993 201992 41991 7
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015