Cohort progression — TP Skalar Słupsk
Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.
Event: 100 freestyle50 freestyle100 breaststroke50 butterfly100 backstroke50 backstroke50 breaststroke200 freestyle200 medley100 medley100 butterfly400 freestyle200 breaststroke200 backstroke200 butterfly400 medley800 freestyle100 unknown1500 freestyle50 unknown
Cohorts to compare: 2014 42013 102012 52011 142010 232009 222008 312007 242006 302005 372004 332003 342002 122001 122000 181999 111998 41997 3
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2014 born 2013 born 2012 born 2011