Cohort progression — Järfälla 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 backstroke100 breaststroke50 butterfly100 backstroke100 medley200 freestyle200 medley100 butterfly25 freestyle25 butterfly25 backstroke400 freestyle25 breaststroke200 breaststroke200 backstroke200 butterfly800 freestyle
Cohorts to compare: 2019 32018 112017 252016 412015 532014 412013 432012 282011 252010 242009 222008 152007 152006 72005 52004 82003 32001 31998 31981 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2016