Cohort progression — Trollhättans Simsällskap
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 breaststroke100 freestyle50 backstroke100 breaststroke50 butterfly100 backstroke100 medley200 freestyle100 butterfly200 medley200 breaststroke25 butterfly25 breaststroke25 backstroke200 backstroke25 freestyle400 freestyle800 freestyle200 butterfly
Cohorts to compare: 2017 72016 212015 132014 112013 192012 72011 142010 112009 32008 82007 32006 52004 32002 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015