Cohort progression — UKP ,,Marlin''
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 backstroke50 breaststroke100 freestyle50 butterfly100 breaststroke100 medley100 backstroke100 butterfly200 medley200 freestyle400 freestyle200 breaststroke25 unknown25 backstroke200 backstroke25 freestyle50 unknown800 freestyle200 butterfly
Cohorts to compare: 2017 82016 42015 122014 142013 112012 62011 82010 72009 62008 32007 82006 82005 82004 112003 122002 132001 192000 91999 91998 51997 6
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2015 born 2014