Cohort progression — MUKS Piętnastka 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 freestyle100 freestyle100 backstroke50 butterfly50 backstroke100 butterfly200 medley200 freestyle100 breaststroke100 medley50 breaststroke200 backstroke400 freestyle200 butterfly200 breaststroke25 freestyle400 medley25 backstroke800 freestyle1500 freestyle
Cohorts to compare: 2017 232016 212015 252014 222013 222012 262011 322010 302009 162008 172007 232006 132005 352004 302003 192002 262001 352000 251999 361998 281997 201996 221995 91994 5
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2015 born 2014