Cohort progression — MKP Bobry Dębica
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 breaststroke100 backstroke50 butterfly100 medley200 freestyle200 breaststroke200 medley200 backstroke100 butterfly400 freestyle400 medley200 butterfly800 freestyle1500 freestyle
Cohorts to compare: 2010 132009 72008 82007 62006 292005 132004 282003 172002 332001 312000 131999 231998 141997 91996 61995 111994 91993 31986 3
50 m freestyle men · 25 m pool
X: swimmer age in season · Y: median season-best time
born 2010 born 2009 born 2008 born 2007