Cohort progression — Vellinge-Näsets Simklubb
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 breaststroke50 butterfly200 freestyle100 backstroke100 breaststroke100 medley200 medley100 butterfly400 freestyle200 backstroke200 breaststroke25 butterfly400 medley800 freestyle200 butterfly1500 freestyle25 breaststroke
Cohorts to compare: 2018 32017 62016 182015 262014 232013 212012 152011 92010 92009 102008 102006 42005 52003 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016 born 2015