Cohort progression — Upsala 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 backstroke50 breaststroke100 backstroke50 butterfly100 breaststroke100 medley200 freestyle200 medley100 butterfly400 freestyle200 backstroke200 breaststroke25 breaststroke25 freestyle25 backstroke400 medley25 butterfly200 butterfly
Cohorts to compare: 2018 62017 212016 312015 332014 562013 482012 562011 442010 382009 382008 212007 202006 102005 62004 32002 41975 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2017 born 2016 born 2015