Cohort progression — SMS Wrocław
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 freestyle200 freestyle50 freestyle400 freestyle50 butterfly100 butterfly100 backstroke200 medley50 backstroke100 breaststroke50 breaststroke200 breaststroke200 butterfly200 backstroke400 medley1500 freestyle800 freestyle
Cohorts to compare: 2010 112009 72008 82007 92006 102005 122004 72003 142002 152001 222000 251999 141998 191997 181996 191995 351994 171993 191992 31991 3
100 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2010 born 2009 born 2008 born 2007