Cohort progression — MKS Polonia Warszawa

Median season-best times of each birth-year cohort, overlaid by age — shows how consecutive groups developed at the same stage of training.

Sex: WomenMen Pool: 25 m pool50 m pool

Event: 50 freestyle 100 freestyle 50 butterfly 50 backstroke 200 freestyle 100 backstroke 50 breaststroke 100 breaststroke 200 medley 100 butterfly 100 medley 400 freestyle 200 backstroke 200 breaststroke 400 medley 200 butterfly 800 freestyle 1500 freestyle

Cohorts to compare: 2008 3 2007 27 2006 18 2005 26 2004 22 2003 55 2002 50 2001 37 2000 50 1999 44 1998 31 1997 10 1996 25 1995 22 1994 19 1993 10 1992 6 1991 6 1990 5

50 m freestyle men · 25 m pool

X: swimmer age in season · Y: median season-best time

born 2006 born 2005

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