Cohort progression — Tyresö 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 freestyle100 freestyle50 breaststroke50 backstroke50 butterfly100 breaststroke100 backstroke200 freestyle200 medley100 medley100 butterfly200 breaststroke400 freestyle200 backstroke25 freestyle200 butterfly25 backstroke400 medley25 butterfly800 freestyle
Cohorts to compare: 2015 72014 132013 252012 262011 322010 192009 222008 132007 102006 42005 42004 4
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013 born 2012